FPUS55 KPIH 210707 ZFPPIH Zone Forecast Product FOR Idaho National Weather Service Pocatello ID 106 AM MDT Thu May 21 2026 This forecast may not be representative of the exact location you are interested in. For a site-specific forecast, please visit weather.gov/Pocatello and click the map on the main page. IDZ072-212200- Sawtooth/Stanley Basin- Including Stanley 106 AM MDT Thu May 21 2026 .TODAY...Sunny. Highs 55 to 65. .TONIGHT...Partly cloudy. Lows 30 to 40. .FRIDAY...Mostly sunny. Highs 59 to 69. .FRIDAY NIGHT...Mostly clear. Lows 31 to 41. .SATURDAY...Sunny, warmer. Highs 67 to 77. .SATURDAY NIGHT...Mostly clear. Lows 36 to 46. .SUNDAY...Mostly sunny. Highs 68 to 78. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Breezy. Lows 37 to 47. Highs 66 to 76. .MONDAY NIGHT...Partly cloudy with a chance of rain. Lows 35 to 45. .TUESDAY...Partly sunny with a chance of rain showers, snow and a slight chance of thunderstorms. Highs 57 to 67. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A chance of rain showers, snow showers and a slight chance of thunderstorms. Lows 31 to 41. Highs 56 to 66. $$ IDZ073-212200- Sun Valley Region- Including Ketchum, Sun Valley, and Galena 106 AM MDT Thu May 21 2026 .TODAY...Sunny. Highs 57 to 67. .TONIGHT...Partly cloudy. Lows 32 to 42. .FRIDAY...Partly sunny. Highs 59 to 69. .FRIDAY NIGHT...Mostly clear. Lows 32 to 42. .SATURDAY...Sunny, warmer. Highs 69 to 79. .SATURDAY NIGHT...Mostly clear. Lows 39 to 49. .SUNDAY...Mostly sunny. Highs 70 to 80. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 38 to 48. Highs 70 to 80. .MONDAY NIGHT...Partly cloudy. Lows 38 to 48. .TUESDAY...Mostly sunny with a chance of rain, a slight chance of thunderstorms and snow. Highs 60 to 70. .TUESDAY NIGHT...Mostly cloudy with a chance of rain showers, snow and a slight chance of thunderstorms. Lows 33 to 42. .WEDNESDAY...Partly sunny with a chance of rain showers, snow showers and a slight chance of thunderstorms. Highs 55 to 65. $$ IDZ052-053-212200- Arco/Mud Lake Desert-Upper Snake River Plain- Including Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, and St. Anthony 106 AM MDT Thu May 21 2026 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... .TODAY...Mostly sunny. Isolated rain showers in the morning. Highs 55 to 65. North winds 10 to 20 mph. .TONIGHT...Partly cloudy. Lows 30 to 39. Northeast winds 10 to 15 mph. .FRIDAY...Partly sunny. Highs 61 to 70. Northeast winds up to 10 mph...shifting to southwest around 10 mph in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows 35 to 43. Southeast winds around 10 mph. .SATURDAY...Sunny, warmer. Highs 71 to 81. Southeast winds around 10 mph. .SATURDAY NIGHT...Mostly clear. Lows 40 to 50. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs 76 to 84. Lows 42 to 51. .MEMORIAL DAY...Sunny. Highs 76 to 84. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Breezy. Lows 42 to 52. Highs 68 to 75. .TUESDAY NIGHT...Mostly cloudy with a slight chance of rain. Breezy. Lows 36 to 45. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 64 to 71. $$ IDZ051-212200- Shoshone/Lava Beds- Including Shoshone, Richfield, and Carey 106 AM MDT Thu May 21 2026 .TODAY...Mostly sunny. Isolated rain showers in the morning. Highs 63 to 71. North winds up to 10 mph. .TONIGHT...Partly cloudy. Lows 36 to 46. Northeast winds 10 to 15 mph. .FRIDAY...Partly sunny in the morning then clearing. Highs 68 to 75. East winds 10 to 15 mph...shifting to southwest in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows 37 to 45. West winds up to 10 mph. .SATURDAY...Sunny, warmer. Highs 77 to 85. East winds up to 10 mph. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Mostly clear. Lows 43 to 53. Highs 79 to 86. .MONDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 43 to 50. .TUESDAY...Mostly sunny. Highs 67 to 74. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A slight chance of rain. Breezy. Lows 35 to 42. Highs 63 to 70. $$ IDZ056-057-212200- Southern Hills/Albion Mountains-Raft River Region- Including Albion, Almo, Malta, Rockland, and Holbrook 106 AM MDT Thu May 21 2026 .TODAY...Mostly sunny. Isolated rain showers in the morning. Highs 60 to 67. North winds 10 to 20 mph. .TONIGHT...Partly cloudy. Lows 36 to 46. North winds around 10 mph...shifting to east up to 10 mph after midnight. .FRIDAY...Partly sunny. Warmer. Highs 66 to 73. Southeast winds up to 10 mph...shifting to southwest around 10 mph in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows 39 to 49. South winds around 10 mph. .SATURDAY...Sunny, warmer. Highs 75 to 82. Southwest winds 10 to 15 mph. .SATURDAY NIGHT...Mostly clear. Lows 47 to 57. .SUNDAY...Sunny with a slight chance of showers and thunderstorms. Highs 77 to 85. .SUNDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 47 to 57. .MEMORIAL DAY...Sunny. Highs 78 to 86. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Breezy. Lows 45 to 54. Highs 66 to 76. .TUESDAY NIGHT...Partly cloudy with a slight chance of rain. Breezy. Lows 37 to 45. .WEDNESDAY...Mostly sunny with a chance of rain and a slight chance of thunderstorms. Highs 62 to 70. $$ IDZ058-059-212200- Marsh and Arbon Highlands-Franklin/Eastern Oneida Region- Including Inkom, McCammon, Downey, Lava Hot Springs, Malad, Preston, and Thatcher 106 AM MDT Thu May 21 2026 .TODAY...Mostly sunny. Scattered rain showers in the morning... then isolated showers and thunderstorms in the afternoon. Highs 54 to 64. .TONIGHT...Partly cloudy. Colder. Lows 31 to 41. .FRIDAY...Partly sunny. Warmer. Highs 60 to 70. .FRIDAY NIGHT...Mostly clear. Lows 35 to 45. .SATURDAY...Sunny, warmer. Highs 70 to 80. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 42 to 52. Highs 73 to 83. .SUNDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 44 to 54. .MEMORIAL DAY...Sunny. Highs 74 to 84. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Breezy. Lows 44 to 54. Highs 67 to 77. .TUESDAY NIGHT...Partly cloudy. Lows 38 to 48. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 62 to 71. $$ IDZ054-212200- Lower Snake River Plain- Including Pocatello, Blackfoot, American Falls, Shelley, and Fort Hall 106 AM MDT Thu May 21 2026 ...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 9 PM MDT THIS EVENING FOR AMERICAN FALLS RESERVOIR... ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM MDT FRIDAY... .TODAY...Partly sunny. Scattered rain showers in the morning. Highs 59 to 66. North winds 10 to 20 mph. .TONIGHT...Partly cloudy. Lows 32 to 40. Northeast winds 10 to 15 mph...decreasing to up to 10 mph after midnight. .FRIDAY...Mostly sunny. Highs 64 to 72. Northeast winds up to 10 mph...shifting to southwest around 10 mph in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows 35 to 44. South winds around 10 mph. .SATURDAY...Sunny, warmer. Highs 72 to 82. South winds up to 10 mph. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 42 to 52. Highs 74 to 84. .SUNDAY NIGHT...Partly cloudy. Lows 42 to 52. .MEMORIAL DAY...Sunny. Highs 76 to 84. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows 43 to 52. Highs 68 to 75. .TUESDAY NIGHT...Partly cloudy. Breezy. Lows 36 to 44. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 64 to 71. $$ IDZ075-212200- Wood River Foothills- Including Hailey, Bellevue, and Picabo 106 AM MDT Thu May 21 2026 .TODAY...Sunny. Highs 59 to 69. North winds around 10 mph. .TONIGHT...Partly cloudy. Lows 36 to 44. Northeast winds up to 10 mph. .FRIDAY...Partly sunny in the morning then clearing. Highs 61 to 71. East winds up to 10 mph...shifting to southwest in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows 37 to 46. Northwest winds around 10 mph. .SATURDAY...Sunny, warmer. Highs 71 to 81. Southwest winds around 10 mph. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Mostly clear. Lows 44 to 54. Highs 72 to 82. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows 42 to 52. Highs 62 to 71. .TUESDAY NIGHT...Mostly cloudy with a slight chance of rain. Breezy. Lows 35 to 44. .WEDNESDAY...Mostly sunny with a chance of rain and a slight chance of thunderstorms. Highs 58 to 66. $$ IDZ069-212200- Lost River Range- Including Borah Peak 106 AM MDT Thu May 21 2026 .TODAY...Mostly sunny. Breezy. Highs 52 to 62. .TONIGHT...Partly cloudy. Lows 33 to 40. .FRIDAY...Decreasing clouds. Highs 56 to 66. .FRIDAY NIGHT...Partly cloudy. Lows 37 to 44. .SATURDAY...Sunny, warmer. Highs 67 to 77. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 42 to 50. Highs 69 to 79. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Windy. Lows 43 to 50. Highs 69 to 79. .MONDAY NIGHT...Partly cloudy. Breezy. Lows 44 to 51. .TUESDAY...Mostly sunny with a chance of rain, a slight chance of thunderstorms and snow. Windy. Highs 61 to 71. .TUESDAY NIGHT...Mostly cloudy with a chance of rain and snow. Breezy. Lows 38 to 45. .WEDNESDAY...Partly sunny with a chance of rain showers, snow showers and a slight chance of thunderstorms. Breezy. Highs 57 to 67. $$ IDZ063-064-212200- Caribou Range-Big Hole Mountains- Including Wayan, Swan Valley, and Victor 106 AM MDT Thu May 21 2026 .TODAY...Numerous snow showers and scattered rain showers in the morning...then scattered rain showers, thunderstorms and snow showers in the afternoon. Snow accumulation up to 2 inches. Highs 50 to 57. .TONIGHT...Partly cloudy. Colder. Lows 27 to 35. .FRIDAY...Partly sunny. Not as cool. Highs 58 to 65. .FRIDAY NIGHT...Partly cloudy. Lows 31 to 40. .SATURDAY...Sunny, warmer. Highs 67 to 77. .SATURDAY NIGHT...Mostly clear. Lows 37 to 47. .SUNDAY AND SUNDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs 72 to 79. Lows 39 to 48. .MEMORIAL DAY...Sunny. Highs 72 to 81. .MONDAY NIGHT...Partly cloudy. Lows 39 to 49. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 66 to 75. .TUESDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 36 to 44. .WEDNESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs 63 to 73. $$ IDZ068-070-212200- Lost River Valley-Challis/Pahsimeroi Valleys- Including Howe, Arco, Mackay, Chilly, and Challis 106 AM MDT Thu May 21 2026 .TODAY...Mostly sunny. Highs 55 to 65. North winds 10 to 15 mph. .TONIGHT...Partly cloudy. Lows 33 to 40. North winds up to 10 mph in the evening...becoming light and variable. .FRIDAY...Partly sunny. Highs 60 to 70. Light and variable winds...becoming southwest around 10 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy. Lows 36 to 43. Light and variable winds. .SATURDAY...Sunny, warmer. Highs 69 to 79. Southwest winds up to 10 mph. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 41 to 48. Highs 71 to 81. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 41 to 49. Highs 71 to 81. .MONDAY NIGHT...Partly cloudy. Lows 41 to 49. .TUESDAY...Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Breezy. Highs 63 to 73. .TUESDAY NIGHT...Mostly cloudy with a chance of rain and snow. Lows 37 to 44. .WEDNESDAY...Partly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 60 to 70. $$ IDZ066-067-212200- Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands- Including Island Park, Kilgore, Dubois, Spencer, Edie School, and Small 106 AM MDT Thu May 21 2026 .TODAY...Partly sunny. Isolated rain showers and snow showers in the morning...then isolated rain showers, thunderstorms and snow showers in the afternoon. Highs 50 to 58. .TONIGHT...Mostly clear. Lows 26 to 36. .FRIDAY...Partly sunny. Not as cool. Highs 57 to 64. .FRIDAY NIGHT...Partly cloudy. Lows 32 to 42. .SATURDAY...Sunny, warmer. Highs 65 to 74. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 38 to 48. Highs 70 to 79. .MEMORIAL DAY...Sunny. Highs 71 to 79. .MONDAY NIGHT...Partly cloudy. Lows 38 to 48. .TUESDAY...Partly sunny with a slight chance of showers and thunderstorms. Highs 63 to 72. .TUESDAY NIGHT...Mostly cloudy with a chance of rain. Lows 35 to 43. .WEDNESDAY...Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 61 to 69. $$ IDZ065-212200- Teton Valley- Including Ashton, Tetonia, and Driggs 106 AM MDT Thu May 21 2026 .TODAY...Partly sunny. Scattered rain showers in the morning... then scattered showers and thunderstorms in the afternoon. Highs 51 to 58. .TONIGHT...Mostly clear. Colder. Lows 26 to 33. .FRIDAY...Partly sunny. Warmer. Highs 59 to 66. .FRIDAY NIGHT...Partly cloudy. Lows 33 to 40. .SATURDAY...Sunny, warmer. Highs 68 to 75. .SATURDAY NIGHT...Mostly clear. Lows 39 to 46. .SUNDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 73 to 80. .SUNDAY NIGHT...Partly cloudy. Lows 42 to 49. .MEMORIAL DAY...Sunny. Highs 74 to 81. .MONDAY NIGHT...Partly cloudy. Lows 42 to 49. .TUESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs 67 to 74. .TUESDAY NIGHT...Mostly cloudy with a chance of rain. Lows 38 to 45. .WEDNESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs 65 to 72. $$ IDZ062-212200- Blackfoot Mountains- Including Grace, Soda Springs, Henry, and Bone 106 AM MDT Thu May 21 2026 .TODAY...Partly sunny. Scattered rain showers and snow showers in the morning...then isolated showers and thunderstorms in the afternoon. No snow accumulation. Highs 51 to 59. .TONIGHT...Partly cloudy. Colder. Lows 27 to 37. .FRIDAY...Partly sunny. Warmer. Highs 57 to 65. .FRIDAY NIGHT...Mostly clear. Lows 33 to 43. .SATURDAY...Sunny, warmer. Highs 66 to 76. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 40 to 50. Highs 68 to 78. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 42 to 52. .MEMORIAL DAY...Sunny. Highs 70 to 79. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Breezy. Lows 42 to 52. Highs 63 to 72. .TUESDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 37 to 47. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 60 to 68. $$ IDZ060-212200- Bear River Range- Including Emigration Summit 106 AM MDT Thu May 21 2026 .TODAY...Partly sunny. Scattered rain showers and snow showers in the morning...then scattered rain showers, thunderstorms and snow showers in the afternoon. Little or no snow accumulation. Highs 51 to 58. .TONIGHT...Mostly clear. Colder. Lows 35 to 42. .FRIDAY...Partly sunny. Not as cool. Highs 57 to 64. .FRIDAY NIGHT...Mostly clear. Lows 41 to 48. .SATURDAY...Sunny, warmer. Highs 66 to 73. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 47 to 55. Highs 70 to 77. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 57. .MEMORIAL DAY...Sunny. Highs 72 to 79. .MONDAY NIGHT...Partly cloudy. Lows 50 to 58. .TUESDAY...Partly sunny. Breezy. Highs 65 to 72. .TUESDAY NIGHT...Partly cloudy. Lows 44 to 51. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 61 to 68. $$ IDZ061-212200- Bear Lake Valley- Including St. Charles, Montpelier, and Georgetown 106 AM MDT Thu May 21 2026 .TODAY...Partly sunny. Scattered rain showers in the morning... then scattered showers and thunderstorms in the afternoon. Highs 52 to 59. .TONIGHT...Mostly clear. Lows 27 to 37. .FRIDAY...Partly sunny. Not as cool. Highs 57 to 64. .FRIDAY NIGHT...Mostly clear. Lows 31 to 40. .SATURDAY...Sunny, warmer. Highs 65 to 73. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 37 to 46. Highs 69 to 79. .SUNDAY NIGHT...Partly cloudy. Lows 40 to 48. .MEMORIAL DAY...Sunny. Highs 70 to 80. .MONDAY NIGHT...Partly cloudy. Lows 40 to 49. .TUESDAY...Partly sunny. Highs 65 to 73. .TUESDAY NIGHT...Partly cloudy. Lows 36 to 44. .WEDNESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 62 to 70. $$ IDZ071-074-212200- Frank Church Wilderness-Big Lost Highlands/Copper Basin- Including Clayton and Copper Basin 106 AM MDT Thu May 21 2026 .TODAY...Sunny. Highs 54 to 64. .TONIGHT...Partly cloudy. Lows 30 to 39. .FRIDAY...Partly sunny. Highs 58 to 68. .FRIDAY NIGHT...Mostly clear. Lows 32 to 42. .SATURDAY...Sunny, warmer. Highs 66 to 76. .SATURDAY NIGHT...Mostly clear. Lows 39 to 49. .SUNDAY...Mostly sunny. Highs 67 to 77. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Breezy. Lows 39 to 49. Highs 66 to 76. .MONDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 37 to 47. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy. A chance of rain showers, snow and a slight chance of thunderstorms. Highs 58 to 68. Lows 33 to 43. .WEDNESDAY...Partly sunny with a chance of rain showers, snow showers and a slight chance of thunderstorms. Highs 56 to 66. $$ IDZ055-212200- Eastern Magic Valley- Including Burley, Rupert, Heyburn, and Oakley 106 AM MDT Thu May 21 2026 .TODAY...Mostly sunny. Scattered rain showers in the morning... then isolated rain showers in the afternoon. Highs 62 to 69. Northeast winds up to 10 mph...shifting to north in the afternoon. .TONIGHT...Partly cloudy. Lows 36 to 46. Northeast winds around 10 mph. .FRIDAY...Mostly sunny. Highs 68 to 75. East winds around 10 mph...shifting to west in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows 39 to 49. South winds around 10 mph. .SATURDAY...Sunny, warmer. Highs 77 to 84. South winds up to 10 mph. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 47 to 57. Highs 79 to 86. .SUNDAY NIGHT...Partly cloudy. Lows 46 to 56. .MEMORIAL DAY...Sunny. Highs 79 to 86. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows 44 to 53. Highs 69 to 76. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. A slight chance of rain. Breezy. Lows 37 to 44. Highs 64 to 71. $$ weather information on-line 24-hours a day www.weather.gov/pocatello