Zone Forecast Product
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
451 FPUS55 KPIH 181637 ZFPPIH Zone Forecast Product FOR Idaho National Weather Service Pocatello ID 1037 AM MDT Fri Sep 18 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. IDZ072-182200- Sawtooth/Stanley Basin- Including Stanley 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered rain showers and isolated thunderstorms in the morning...then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 55 to 65. .TONIGHT...Rain showers likely and a slight chance of thunderstorms in the evening...then scattered rain showers after midnight. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 35 to 45. .SATURDAY...Mostly cloudy. A chance of rain in the morning...then a chance of rain and a slight chance of thunderstorms in the afternoon. Highs 54 to 64. .SATURDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 34 to 44. .SUNDAY...Mostly sunny. Warmer. Highs 62 to 72. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 35 to 45. Highs 63 to 73. .MONDAY NIGHT...Partly cloudy. Lows 36 to 46. .TUESDAY...Sunny with a slight chance of rain. Highs 63 to 73. .TUESDAY NIGHT THROUGH THURSDAY...Mostly clear. Lows 35 to 45. Highs 65 to 75. $$ IDZ073-182200- Sun Valley Region- Including Ketchum, Sun Valley, and Galena 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Partly sunny. Scattered rain showers and isolated thunderstorms in the morning...then scattered showers and thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall in the morning...then some thunderstorms may produce small hail and heavy rainfall in the afternoon. Highs 57 to 67. .TONIGHT...Mostly cloudy. Scattered thunderstorms and a chance of rain showers in the evening...then scattered rain showers after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 34 to 43. .SATURDAY...Mostly cloudy. A slight chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 55 to 65. .SATURDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 34 to 44. .SUNDAY...Sunny. Not as cool. Highs 61 to 71. .SUNDAY NIGHT...Mostly clear. Lows 36 to 46. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 63 to 73. Lows 38 to 48. .TUESDAY...Mostly sunny with a slight chance of rain. Highs 64 to 74. .TUESDAY NIGHT THROUGH THURSDAY...Mostly clear. Lows 38 to 48. Highs 66 to 76. $$ IDZ052-053-182200- Arco/Mud Lake Desert-Upper Snake River Plain- Including Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, and St. Anthony 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered rain showers and isolated thunderstorms in the morning...then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 64 to 71. Northeast winds around 10 mph... shifting to south in the afternoon. .TONIGHT...Numerous rain showers and scattered thunderstorms in the evening...then scattered rain showers and isolated thunderstorms after midnight. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 41 to 48. East winds up to 10 mph. Chance of precipitation 70 percent. .SATURDAY...Mostly cloudy. A chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 58 to 65. Southwest winds up to 10 mph. Chance of precipitation 50 percent. .SATURDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 39 to 46. West winds up to 10 mph. Chance of precipitation 20 percent. .SUNDAY...Mostly sunny. Highs 63 to 71. Light and variable winds. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 40 to 47. Highs 68 to 75. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 41 to 49. Highs 70 to 77. .WEDNESDAY...Sunny. Highs 70 to 77. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 41 to 50. Highs 72 to 79. $$ IDZ051-182200- Shoshone/Lava Beds- Including Shoshone, Richfield, and Carey 1037 AM MDT Fri Sep 18 2026 .TODAY...Mostly sunny. Isolated showers and thunderstorms in the morning...then scattered showers and thunderstorms in the afternoon. Cooler. Some thunderstorms may produce small hail and heavy rainfall. Highs 64 to 71. East winds up to 10 mph... shifting to southwest in the afternoon. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening...then isolated rain showers after midnight. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 40 to 47. Southwest winds up to 10 mph. Chance of precipitation 20 percent. .SATURDAY...Partly sunny. A slight chance of rain in the morning. Highs 61 to 68. Southwest winds up to 10 mph. Chance of precipitation 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows 39 to 46. South winds up to 10 mph. .SUNDAY...Sunny, warmer. Highs 68 to 75. East winds up to 10 mph. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 42 to 49. Highs 71 to 78. .MONDAY NIGHT...Partly cloudy. Lows 43 to 50. .TUESDAY THROUGH THURSDAY...Mostly clear. Highs 73 to 83. Lows 43 to 51. $$ IDZ056-057-182200- Southern Hills/Albion Mountains-Raft River Region- Including Albion, Almo, Malta, Rockland, and Holbrook 1037 AM MDT Fri Sep 18 2026 .TODAY...Mostly sunny with isolated showers and thunderstorms in the morning...then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 62 to 71. Southeast winds up to 10 mph...shifting to southwest in the afternoon. .TONIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 38 to 48. West winds up to 10 mph. .SATURDAY...Partly sunny. A slight chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 59 to 66. West winds up to 10 mph. .SATURDAY NIGHT...Partly cloudy. Lows 38 to 48. Southwest winds up to 10 mph. .SUNDAY...Sunny, warmer. Highs 66 to 73. South winds up to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 42 to 52. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 71 to 78. Lows 45 to 54. .TUESDAY...Mostly sunny with a slight chance of showers and thunderstorms. Highs 71 to 78. .TUESDAY NIGHT...Partly cloudy. Lows 43 to 53. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 73 to 82. Lows 44 to 54. $$ IDZ058-059-182200- Marsh and Arbon Highlands-Franklin/Eastern Oneida Region- Including Inkom, McCammon, Downey, Lava Hot Springs, Malad, Preston, and Thatcher 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered showers and thunderstorms in the morning... then rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 63 to 73. .TONIGHT...Mostly cloudy with scattered showers and thunderstorms in the evening...then partly cloudy with isolated showers and thunderstorms after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 40 to 49. .SATURDAY...Partly sunny. A slight chance of rain in the morning...then a chance of showers and thunderstorms in the afternoon. Highs 55 to 65. .SATURDAY NIGHT...Partly cloudy with a slight chance of rain. Lows 37 to 47. .SUNDAY...Sunny, warmer. Highs 61 to 71. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 39 to 49. Highs 66 to 76. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 42 to 52. Highs 67 to 77. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 70 to 80. Lows 42 to 52. $$ IDZ054-182200- Lower Snake River Plain- Including Pocatello, Blackfoot, American Falls, Shelley, and Fort Hall 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered rain showers and isolated thunderstorms in the morning...then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 66 to 73. Northeast winds up to 10 mph... shifting to south around 10 mph in the afternoon. .TONIGHT...Mostly cloudy. Scattered thunderstorms and a chance of rain showers in the evening...then isolated showers and thunderstorms after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 41 to 50. South winds up to 10 mph. Chance of precipitation 50 percent. .SATURDAY...Mostly cloudy. A slight chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 60 to 67. Southwest winds around 10 mph. Chance of precipitation 50 percent. .SATURDAY NIGHT...Partly cloudy. Lows 39 to 48. Southwest winds up to 10 mph. .SUNDAY...Mostly sunny. Warmer. Highs 67 to 74. Light and variable winds. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 40 to 49. Highs 71 to 78. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 42 to 51. Highs 72 to 79. .WEDNESDAY...Sunny. Highs 73 to 80. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 42 to 52. Highs 75 to 82. $$ IDZ075-182200- Wood River Foothills- Including Hailey, Bellevue, and Picabo 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Partly sunny. Isolated showers and thunderstorms in the morning...then scattered showers and thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 58 to 68. North winds up to 10 mph...shifting to south around 10 mph in the afternoon. .TONIGHT...Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the evening...then scattered rain showers after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 38 to 46. Northwest winds up to 10 mph in the evening...becoming light and variable. .SATURDAY...Partly sunny. A slight chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 55 to 65. Light and variable winds...becoming southwest up to 10 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows 37 to 46. North winds up to 10 mph. .SUNDAY...Sunny, warmer. Highs 61 to 71. East winds up to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows 40 to 48. .MONDAY THROUGH TUESDAY...Partly cloudy. Highs 65 to 75. Lows 41 to 50. .TUESDAY NIGHT...Mostly clear. Lows 40 to 50. .WEDNESDAY...Sunny. Highs 67 to 77. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 41 to 50. Highs 69 to 79. $$ IDZ069-182200- Lost River Range- Including Borah Peak 1037 AM MDT Fri Sep 18 2026 .TODAY...Partly sunny. Isolated showers and thunderstorms in the morning...then scattered showers and thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 57 to 66. .TONIGHT...Numerous rain showers and scattered thunderstorms in the evening...then numerous rain showers and isolated thunderstorms after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 42 to 49. .SATURDAY...A chance of rain in the morning...then rain showers likely and a slight chance of thunderstorms in the afternoon. Highs 52 to 60. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows 40 to 47. .SUNDAY...Mostly sunny. Not as cool. Highs 59 to 68. .SUNDAY NIGHT...Mostly clear. Lows 41 to 48. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 61 to 71. Lows 43 to 50. .TUESDAY AND TUESDAY NIGHT...Partly cloudy. A slight chance of rain. Highs 63 to 73. Lows 42 to 49. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 65 to 75. Lows 43 to 50. $$ IDZ063-064-182200- Caribou Range-Big Hole Mountains- Including Wayan, Swan Valley, and Victor 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered showers and thunderstorms in the morning... then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 64 to 71. .TONIGHT...Numerous rain showers and scattered thunderstorms in the evening...then scattered rain showers and isolated thunderstorms after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 39 to 47. .SATURDAY...A chance of rain showers and a slight chance of thunderstorms in the morning...then rain showers likely and a chance of thunderstorms in the afternoon. Highs 55 to 62. .SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 35 to 45. .SUNDAY...Partly sunny. Highs 59 to 66. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 35 to 45. Highs 66 to 73. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows 38 to 48. Highs 67 to 75. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 38 to 48. .WEDNESDAY...Sunny. Highs 68 to 75. .WEDNESDAY NIGHT...Partly cloudy. Lows 38 to 48. .THURSDAY...Sunny. Highs 70 to 78. $$ IDZ068-070-182200- Lost River Valley-Challis/Pahsimeroi Valleys- Including Howe, Arco, Mackay, Chilly, and Challis 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Isolated showers and thunderstorms in the morning...then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 59 to 69. Light and variable winds...becoming southeast up to 10 mph in the afternoon. .TONIGHT...Rain showers and scattered thunderstorms in the evening...then numerous rain showers and isolated thunderstorms after midnight. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 39 to 48. Northwest winds up to 10 mph in the evening...becoming light and variable. .SATURDAY...A chance of rain in the morning...then rain showers likely and a slight chance of thunderstorms in the afternoon. Highs 55 to 65. Light and variable winds...becoming north up to 10 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows 38 to 47. Light and variable winds. .SUNDAY...Mostly sunny. Warmer. Highs 62 to 72. Light and variable winds. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 39 to 48. Highs 65 to 75. .MONDAY NIGHT...Partly cloudy. Lows 41 to 49. .TUESDAY...Mostly sunny with a slight chance of rain. Highs 66 to 76. .TUESDAY NIGHT...Partly cloudy. Lows 41 to 49. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 68 to 78. Lows 41 to 49. $$ IDZ066-067-182200- Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands- Including Island Park, Kilgore, Dubois, Spencer, Edie School, and Small 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered rain showers and isolated thunderstorms in the morning...then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 60 to 70. .TONIGHT...Numerous rain showers and scattered thunderstorms in the evening...then numerous rain showers and isolated thunderstorms after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 38 to 47. .SATURDAY...Mostly cloudy. A chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 54 to 61. .SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 36 to 46. .SUNDAY...Mostly sunny with a slight chance of rain. Highs 60 to 67. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 35 to 45. Highs 63 to 71. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 37 to 47. Highs 66 to 73. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 66 to 75. Lows 37 to 47. $$ IDZ065-182200- Teton Valley- Including Ashton, Tetonia, and Driggs 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered rain showers and isolated thunderstorms in the morning...then rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs around 69. .TONIGHT...Numerous rain showers and scattered thunderstorms in the evening...then scattered rain showers and isolated thunderstorms after midnight. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 40 to 47. .SATURDAY...Rain likely in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 56 to 63. .SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 37 to 44. .SUNDAY...Partly sunny with a slight chance of rain. Highs 60 to 67. .SUNDAY NIGHT...Partly cloudy. Lows 37 to 44. .MONDAY...Sunny. Highs 66 to 73. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 38 to 47. Highs around 72. .WEDNESDAY...Sunny. Highs around 72. .WEDNESDAY NIGHT...Partly cloudy. Lows 39 to 46. .THURSDAY...Sunny. Highs around 74. $$ IDZ062-182200- Blackfoot Mountains- Including Grace, Soda Springs, Henry, and Bone 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered showers and thunderstorms in the morning... then rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 63 to 70. .TONIGHT...Numerous rain showers and scattered thunderstorms in the evening...then scattered rain showers and isolated thunderstorms after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 39 to 48. .SATURDAY...Mostly cloudy. A chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 54 to 63. .SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 36 to 46. .SUNDAY...Mostly sunny. Warmer. Highs 59 to 68. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 37 to 47. Highs 65 to 73. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 40 to 50. Highs 67 to 75. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 67 to 76. Lows 40 to 50. .THURSDAY...Sunny. Highs 69 to 78. $$ IDZ060-182200- Bear River Range- Including Emigration Summit 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Numerous rain showers and scattered thunderstorms in the morning...then rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 64 to 71. .TONIGHT...Numerous rain showers and scattered thunderstorms in the evening...then isolated showers and thunderstorms after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 45 to 52. .SATURDAY...Partly sunny. A slight chance of rain in the morning...then a chance of showers and thunderstorms in the afternoon. Highs 56 to 63. .SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 42 to 49. .SUNDAY...Mostly sunny. Highs 60 to 67. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 45 to 52. Highs 66 to 73. .MONDAY NIGHT...Partly cloudy. Lows 48 to 55. .TUESDAY AND TUESDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms. Highs 67 to 74. Lows 48 to 55. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 68 to 77. Lows 48 to 55. $$ IDZ061-182200- Bear Lake Valley- Including St. Charles, Montpelier, and Georgetown 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Numerous rain showers and scattered thunderstorms. Some thunderstorms may produce small hail and heavy rainfall. Highs around 68. .TONIGHT...Rain showers and scattered thunderstorms in the evening...then partly cloudy with isolated showers and thunderstorms after midnight. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 38 to 48. .SATURDAY...Partly sunny. A chance of rain in the morning...then a chance of showers and thunderstorms in the afternoon. Highs 57 to 64. .SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 34 to 44. .SUNDAY...Mostly sunny. Highs around 65. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 35 to 45. Highs around 70. .MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows 38 to 48. Highs around 71. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Lows 38 to 48. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 70 to 77. Lows 38 to 48. $$ IDZ071-182200- Frank Church Wilderness- Including Clayton 1037 AM MDT Fri Sep 18 2026 ...FLOOD WATCH IN EFFECT THROUGH THIS EVENING... .TODAY...Scattered rain showers and isolated thunderstorms in the morning...then rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 57 to 67. .TONIGHT...Rain showers likely and a slight chance of thunderstorms in the evening...then numerous rain showers after midnight. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 37 to 47. .SATURDAY...Mostly cloudy. A chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 55 to 65. .SATURDAY NIGHT...Mostly cloudy with a slight chance of rain. Lows 36 to 46. .SUNDAY...Sunny, warmer. Highs 63 to 73. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 37 to 47. Highs 64 to 74. .MONDAY NIGHT...Partly cloudy. Lows 38 to 48. .TUESDAY...Sunny with a slight chance of rain. Highs 64 to 74. .TUESDAY NIGHT...Partly cloudy. Lows 37 to 47. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 66 to 76. Lows 38 to 47. $$ IDZ074-182200- Big Lost Highlands/Copper Basin- Including Copper Basin 1037 AM MDT Fri Sep 18 2026 .TODAY...Partly sunny. Scattered rain showers and isolated thunderstorms in the morning...then scattered showers and thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall in the morning...then some thunderstorms may produce small hail and heavy rainfall in the afternoon. Highs 53 to 63. .TONIGHT...Rain showers likely and a chance of thunderstorms in the evening...then scattered rain showers and isolated thunderstorms after midnight. Colder. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 37 to 47. .SATURDAY...Mostly cloudy. A chance of rain in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 51 to 59. .SATURDAY NIGHT...Mostly cloudy with a chance of rain. Lows 37 to 46. .SUNDAY...Mostly sunny. Not as cool. Highs 59 to 66. .SUNDAY NIGHT...Mostly clear. Lows 38 to 48. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 61 to 68. Lows 40 to 50. .TUESDAY...Mostly sunny with a slight chance of rain. Highs 61 to 70. .TUESDAY NIGHT...Mostly clear with a slight chance of rain. Lows 39 to 49. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 63 to 73. Lows 39 to 49. $$ IDZ055-182200- Eastern Magic Valley- Including Burley, Rupert, Heyburn, and Oakley 1037 AM MDT Fri Sep 18 2026 .TODAY...Mostly sunny. Isolated showers and thunderstorms in the morning...then scattered showers and thunderstorms in the afternoon. Some thunderstorms may produce small hail and heavy rainfall. Highs 65 to 72. East winds up to 10 mph...shifting to west in the afternoon. .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Some thunderstorms may produce small hail and heavy rainfall in the evening. Lows 41 to 49. Southwest winds around 10 mph. Chance of precipitation 20 percent. .SATURDAY...Partly sunny with a slight chance of rain. Highs 61 to 68. Southwest winds 10 to 15 mph. Chance of precipitation 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows 40 to 49. South winds up to 10 mph. .SUNDAY...Sunny, warmer. Highs 68 to 75. Light and variable winds. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 43 to 51. Highs 72 to 79. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Partly cloudy. Lows 44 to 54. Highs 73 to 80. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 75 to 84. Lows 44 to 54. $$ weather information on-line 24-hours a day www.weather.gov/pocatello