FPUS55 KPIH 190747 ZFPPIH Zone Forecast Product FOR Idaho National Weather Service Pocatello ID 147 AM MDT Tue May 19 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. IDZ072-192200- Sawtooth/Stanley Basin- Including Stanley 147 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Highs 51 to 61. .TONIGHT...Partly cloudy. Lows 26 to 36. .WEDNESDAY...Partly sunny. Highs 54 to 64. .WEDNESDAY NIGHT...Partly cloudy. Lows 28 to 38. .THURSDAY...Mostly sunny. Highs 59 to 69. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 31 to 41. Highs 62 to 72. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 32 to 42. Highs 66 to 76. .SATURDAY NIGHT...Partly cloudy. Lows 34 to 44. .SUNDAY...Sunny. Highs 68 to 78. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows 35 to 45. Highs 65 to 75. $$ IDZ073-192200- Sun Valley Region- Including Ketchum, Sun Valley, and Galena 147 AM MDT Tue May 19 2026 .TODAY...Increasing clouds. Highs 51 to 61. .TONIGHT...Partly cloudy. Lows 28 to 37. .WEDNESDAY...Partly sunny. Highs 56 to 66. .WEDNESDAY NIGHT...Partly cloudy. Lows 30 to 40. .THURSDAY...Mostly sunny. Highs 60 to 70. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 33 to 43. Highs 62 to 72. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 34 to 44. Highs 67 to 77. .SATURDAY NIGHT...Partly cloudy. Lows 36 to 46. .SUNDAY THROUGH MEMORIAL DAY...Mostly clear. Highs 69 to 79. Lows 38 to 48. $$ IDZ052-053-192200- Arco/Mud Lake Desert-Upper Snake River Plain- Including Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, and St. Anthony 147 AM MDT Tue May 19 2026 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... .TODAY...Sunny. Highs 56 to 64. East winds up to 10 mph... shifting to southwest in the afternoon. .TONIGHT...Partly cloudy. Lows 30 to 38. Southwest winds 10 to 15 mph. .WEDNESDAY...Partly sunny. Isolated rain showers in the afternoon. Highs 61 to 69. South winds up to 10 mph...shifting to southwest in the afternoon. Chance of precipitation 20 percent. .WEDNESDAY NIGHT...Mostly cloudy with scattered rain showers. Lows 35 to 43. Northwest winds 10 to 15 mph. Chance of precipitation 50 percent. .THURSDAY...Partly sunny with scattered rain showers and isolated thunderstorms. Highs 59 to 68. North winds 10 to 15 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 34 to 44. Highs 64 to 73. .SATURDAY...Sunny. Highs 71 to 79. .SATURDAY NIGHT...Partly cloudy. Lows 39 to 48. .SUNDAY...Sunny. Highs 75 to 83. .SUNDAY NIGHT...Partly cloudy. Lows 42 to 51. .MEMORIAL DAY...Sunny. Highs 75 to 84. $$ IDZ051-192200- Shoshone/Lava Beds- Including Shoshone, Richfield, and Carey 147 AM MDT Tue May 19 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... .TODAY...Sunny. Highs 60 to 67. East winds up to 10 mph... shifting to southwest in the afternoon. .TONIGHT...Mostly clear. Lows 32 to 39. West winds 10 to 15 mph in the evening...becoming light and variable. .WEDNESDAY...Increasing clouds. Highs 65 to 72. Light and variable winds...becoming west 10 to 15 mph with gusts to around 25 mph in the afternoon. .WEDNESDAY NIGHT...Mostly cloudy with isolated rain showers. Lows 36 to 43. West winds 10 to 15 mph. Chance of precipitation 20 percent. .THURSDAY...Mostly sunny with isolated rain showers. Highs 65 to 72. North winds up to 10 mph. Chance of precipitation 20 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 37 to 45. Highs 70 to 77. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 38 to 46. Highs 76 to 83. .SATURDAY NIGHT...Partly cloudy. Lows 41 to 49. .SUNDAY THROUGH MEMORIAL DAY...Mostly clear. Highs 77 to 85. Lows 43 to 51. $$ IDZ056-057-192200- Southern Hills/Albion Mountains-Raft River Region- Including Albion, Almo, Malta, Rockland, and Holbrook 147 AM MDT Tue May 19 2026 .TODAY...Sunny. Highs 58 to 65. Light and variable winds... becoming northwest around 10 mph in the afternoon. .TONIGHT...Partly cloudy. Lows 33 to 43. West winds around 10 mph...shifting to southwest up to 10 mph after midnight. .WEDNESDAY...Partly sunny. Warmer. Highs 64 to 71. Southwest winds up to 10 mph...shifting to west in the afternoon. .WEDNESDAY NIGHT...Mostly cloudy. Lows 39 to 49. West winds around 10 mph. .THURSDAY...Mostly sunny with scattered rain showers. Highs 63 to 71. Northwest winds 10 to 15 mph. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 39 to 49. Highs 68 to 75. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 41 to 51. Highs 74 to 81. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 46 to 56. Highs 77 to 85. .MEMORIAL DAY...Sunny. Highs 77 to 86. $$ IDZ058-059-192200- Marsh and Arbon Highlands-Franklin/Eastern Oneida Region- Including Inkom, McCammon, Downey, Lava Hot Springs, Malad, Preston, and Thatcher 147 AM MDT Tue May 19 2026 .TODAY...Sunny. Highs 54 to 64. .TONIGHT...Partly cloudy. Lows 30 to 40. .WEDNESDAY...Partly sunny. Highs 59 to 69. .WEDNESDAY NIGHT...Mostly cloudy with isolated rain showers. Lows 37 to 47. .THURSDAY...Partly sunny with scattered rain showers and isolated thunderstorms. Highs 57 to 67. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 34 to 44. Highs 63 to 73. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 36 to 46. Highs 68 to 78. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 41 to 51. Highs 72 to 82. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 43 to 53. Highs 73 to 83. $$ IDZ054-192200- Lower Snake River Plain- Including Pocatello, Blackfoot, American Falls, Shelley, and Fort Hall 147 AM MDT Tue May 19 2026 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... .TODAY...Sunny. Highs 59 to 66. Northeast winds up to 10 mph... shifting to southwest around 10 mph in the afternoon. .TONIGHT...Mostly clear. Lows 30 to 39. Southwest winds 10 to 15 mph. .WEDNESDAY...Mostly sunny. Highs 63 to 70. Southwest winds 10 to 15 mph. .WEDNESDAY NIGHT...Mostly cloudy with scattered rain showers. Lows 37 to 45. West winds 10 to 15 mph. Chance of precipitation 50 percent. .THURSDAY...Partly sunny with scattered rain showers. Highs 61 to 69. North winds 10 to 15 mph. Chance of precipitation 40 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 35 to 43. Highs 66 to 74. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 36 to 46. Highs 73 to 80. .SATURDAY NIGHT...Partly cloudy. Lows 40 to 50. .SUNDAY...Sunny. Highs 75 to 83. .SUNDAY NIGHT...Partly cloudy. Lows 42 to 52. .MEMORIAL DAY...Sunny. Highs 75 to 83. $$ IDZ075-192200- Wood River Foothills- Including Hailey, Bellevue, and Picabo 147 AM MDT Tue May 19 2026 .TODAY...Sunny. Highs 53 to 63. East winds up to 10 mph... shifting to southwest in the afternoon. .TONIGHT...Partly cloudy. Lows 31 to 39. West winds 10 to 15 mph...shifting to north after midnight. .WEDNESDAY...Increasing clouds. Highs 58 to 68. Northwest winds up to 10 mph...shifting to west with gusts to around 25 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy with isolated rain showers. Lows 35 to 44. Northwest winds 10 to 15 mph. .THURSDAY...Mostly sunny with isolated rain showers. Highs 61 to 71. Northwest winds around 10 mph. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 37 to 46. Highs 63 to 73. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 37 to 47. Highs 69 to 79. .SATURDAY NIGHT...Partly cloudy. Lows 41 to 51. .SUNDAY...Sunny. Highs 72 to 82. .SUNDAY NIGHT...Partly cloudy. Lows 42 to 52. .MEMORIAL DAY...Sunny. Highs 70 to 80. $$ IDZ069-192200- Lost River Range- Including Borah Peak 147 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Isolated rain showers and snow showers in the afternoon. Highs 50 to 60. .TONIGHT...Mostly cloudy with isolated rain showers and snow showers in the evening...then partly cloudy after midnight. Lows 32 to 39. .WEDNESDAY...Mostly sunny in the morning...then mostly cloudy with scattered rain showers and isolated snow showers in the afternoon. Little or no snow accumulation. Highs 54 to 64. .WEDNESDAY NIGHT...Mostly cloudy with scattered rain showers and snow showers. Lows 36 to 43. .THURSDAY...Mostly sunny with scattered snow showers. Highs 55 to 65. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 36 to 46. Highs 59 to 69. .SATURDAY...Sunny. Highs 66 to 76. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 41 to 51. Highs 69 to 79. .MEMORIAL DAY...Sunny, windy. Highs 69 to 79. $$ IDZ063-064-192200- Caribou Range-Big Hole Mountains- Including Wayan, Swan Valley, and Victor 147 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Not as cool. Highs 53 to 60. .TONIGHT...Mostly clear. Lows 27 to 36. .WEDNESDAY...Partly sunny. Isolated showers and thunderstorms in the afternoon. Highs 57 to 64. .WEDNESDAY NIGHT...Mostly cloudy with scattered rain showers and snow showers. Lows 34 to 41. .THURSDAY...Numerous rain showers, isolated thunderstorms and snow showers. Highs 55 to 62. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 31 to 41. Highs 61 to 68. .SATURDAY...Sunny. Highs 67 to 74. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 37 to 47. Highs 71 to 79. .MEMORIAL DAY...Sunny. Highs 72 to 82. $$ IDZ068-070-192200- Lost River Valley-Challis/Pahsimeroi Valleys- Including Howe, Arco, Mackay, Chilly, and Challis 147 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Isolated rain showers and snow showers in the afternoon. Highs 53 to 63. Light and variable winds... becoming southwest around 10 mph in the afternoon. .TONIGHT...Mostly cloudy with isolated rain showers in the evening...then partly cloudy after midnight. Lows 31 to 38. West winds around 10 mph in the evening...becoming light and variable. .WEDNESDAY...Mostly sunny in the morning...then mostly cloudy with isolated rain showers in the afternoon. Highs 57 to 67. Light and variable winds...becoming west around 10 mph in the afternoon. .WEDNESDAY NIGHT...Mostly cloudy with scattered rain showers. Lows 35 to 42. Northwest winds 10 to 15 mph. .THURSDAY...Mostly sunny with isolated rain showers and snow showers. Highs 58 to 68. North winds 10 to 15 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 35 to 44. Highs 63 to 73. .SATURDAY...Sunny. Highs 68 to 78. .SATURDAY NIGHT...Partly cloudy. Lows 39 to 46. .SUNDAY...Sunny. Highs 71 to 81. .SUNDAY NIGHT...Partly cloudy. Lows 41 to 49. .MEMORIAL DAY...Sunny, breezy. Highs 71 to 81. $$ IDZ066-067-192200- Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands- Including Island Park, Kilgore, Dubois, Spencer, Edie School, and Small 147 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Highs 52 to 60. .TONIGHT...Mostly cloudy with isolated rain showers and snow showers in the evening...then partly cloudy after midnight. Lows 28 to 38. .WEDNESDAY...Mostly sunny in the morning...then mostly cloudy with scattered rain showers, isolated thunderstorms and snow showers in the afternoon. Little or no snow accumulation. Highs 56 to 63. .WEDNESDAY NIGHT...Numerous rain showers and snow showers. Lows 31 to 41. .THURSDAY...Mostly sunny with scattered rain showers, isolated thunderstorms and snow showers. Highs 54 to 62. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 31 to 41. Highs 60 to 67. .SATURDAY...Sunny. Highs 66 to 74. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 36 to 46. Highs 71 to 78. .MEMORIAL DAY...Sunny. Highs 71 to 79. $$ IDZ065-192200- Teton Valley- Including Ashton, Tetonia, and Driggs 147 AM MDT Tue May 19 2026 .TODAY...Sunny. Not as cool. Highs 54 to 61. .TONIGHT...Partly cloudy. Lows 29 to 36. .WEDNESDAY...Partly sunny. Scattered rain showers and isolated thunderstorms in the afternoon. Highs 59 to 66. .WEDNESDAY NIGHT...Mostly cloudy with scattered rain showers. Lows 34 to 41. .THURSDAY...Partly sunny with scattered rain showers and isolated thunderstorms. Highs 56 to 63. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 32 to 42. Highs 62 to 69. .SATURDAY...Sunny. Highs 68 to 75. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 39 to 48. Highs 72 to 79. .MEMORIAL DAY...Sunny. Highs 74 to 81. $$ IDZ062-192200- Blackfoot Mountains- Including Grace, Soda Springs, Henry, and Bone 147 AM MDT Tue May 19 2026 .TODAY...Sunny. Highs 52 to 59. .TONIGHT...Mostly clear. Lows 28 to 38. .WEDNESDAY...Mostly sunny. Highs 56 to 64. .WEDNESDAY NIGHT...Mostly cloudy with scattered rain showers. Lows 34 to 44. .THURSDAY...Partly sunny with scattered rain showers and isolated thunderstorms. Highs 54 to 62. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 33 to 43. Highs 59 to 68. .SATURDAY...Sunny. Highs 65 to 74. .SATURDAY NIGHT...Partly cloudy. Lows 39 to 49. .SUNDAY THROUGH MEMORIAL DAY...Mostly clear. Highs 69 to 79. Lows 41 to 51. $$ IDZ060-192200- Bear River Range- Including Emigration Summit 147 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Isolated snow showers in the afternoon. Not as cool. Highs 51 to 58. .TONIGHT...Mostly clear. Lows 34 to 41. .WEDNESDAY...Mostly sunny. Highs 56 to 63. .WEDNESDAY NIGHT...Mostly cloudy with isolated rain showers and snow showers. Lows 42 to 49. .THURSDAY...Numerous rain showers, snow showers and scattered thunderstorms. Highs 54 to 61. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 38 to 45. Highs 59 to 66. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 41 to 48. Highs 65 to 72. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 46 to 53. Highs 70 to 77. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows 48 to 56. Highs 71 to 78. $$ IDZ061-192200- Bear Lake Valley- Including St. Charles, Montpelier, and Georgetown 147 AM MDT Tue May 19 2026 .TODAY...Sunny. Not as cool. Highs 50 to 57. .TONIGHT...Mostly clear. Lows 26 to 35. .WEDNESDAY...Partly sunny. Not as cool. Highs 57 to 64. .WEDNESDAY NIGHT...Mostly cloudy with isolated rain showers. Lows 32 to 41. .THURSDAY...Numerous rain showers with possible thunderstorms and snow showers. Highs 55 to 62. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 30 to 39. Highs 59 to 66. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 34 to 44. Highs 65 to 73. .SUNDAY THROUGH MEMORIAL DAY...Mostly clear. Highs 69 to 79. Lows 38 to 47. $$ IDZ071-074-192200- Frank Church Wilderness-Big Lost Highlands/Copper Basin- Including Clayton and Copper Basin 147 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Isolated snow showers in the afternoon. Highs 51 to 61. .TONIGHT...Mostly cloudy with isolated snow showers in the evening...then partly cloudy after midnight. Lows 27 to 36. .WEDNESDAY...Partly sunny. Highs 54 to 64. .WEDNESDAY NIGHT...Mostly cloudy with scattered snow showers and isolated rain showers. Lows 30 to 40. .THURSDAY...Mostly sunny with isolated snow showers. Highs 58 to 68. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 33 to 43. Highs 61 to 71. .SATURDAY...Sunny. Highs 65 to 75. .SATURDAY NIGHT...Partly cloudy. Lows 36 to 46. .SUNDAY...Sunny. Highs 67 to 77. .SUNDAY NIGHT...Partly cloudy. Lows 38 to 48. .MEMORIAL DAY...Sunny, breezy. Highs 66 to 76. $$ IDZ055-192200- Eastern Magic Valley- Including Burley, Rupert, Heyburn, and Oakley 147 AM MDT Tue May 19 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... .TODAY...Sunny. Highs 60 to 67. Southeast winds up to 10 mph... shifting to west in the afternoon. .TONIGHT...Mostly clear. Lows 33 to 43. West winds 10 to 15 mph... shifting to southwest after midnight. .WEDNESDAY...Partly sunny. Highs 66 to 73. Light and variable winds...becoming west 10 to 15 mph in the afternoon. .WEDNESDAY NIGHT...Mostly cloudy with isolated rain showers. Lows 39 to 48. West winds 10 to 15 mph. Chance of precipitation 20 percent. .THURSDAY...Mostly sunny with scattered rain showers. Highs 65 to 72. North winds around 10 mph. Chance of precipitation 40 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 38 to 48. Highs 69 to 76. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 41 to 51. Highs 76 to 83. .SATURDAY NIGHT...Partly cloudy. Lows 44 to 54. .SUNDAY THROUGH MEMORIAL DAY...Mostly clear. Highs 78 to 85. Lows 46 to 56. $$ weather information on-line 24-hours a day www.weather.gov/pocatello