Expires:202512281100;;333992 FPUS55 KPIH 272102 ZFPPIH Zone Forecast Product FOR Idaho National Weather Service Pocatello ID 202 PM MST Sat Dec 27 2025 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. IDZ068-070-281100- Lost River Valley-Challis/Pahsimeroi Valleys- Including Howe, Arco, Mackay, Chilly, and Challis 202 PM MST Sat Dec 27 2025 .TONIGHT...Mostly clear. Colder. Lows 2 to 11. Northwest winds 10 to 15 mph...decreasing to up to 10 mph after midnight. .SUNDAY...Sunny. Highs 19 to 29. Light and variable winds. .SUNDAY NIGHT...Mostly clear. Lows 8 to 15. Light and variable winds. .MONDAY...Sunny. Not as cold. Highs 27 to 36. Light and variable winds. .MONDAY NIGHT...Partly cloudy. Lows 15 to 24. Light and variable winds. .TUESDAY...Mostly sunny. Highs 32 to 41. .TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 15 to 24. Highs 36 to 46. .WEDNESDAY NIGHT...Partly cloudy. Lows 17 to 27. .NEW YEARS DAY...Partly sunny. Highs 36 to 45. .THURSDAY NIGHT...Mostly cloudy with a slight chance of snow. Lows 20 to 28. .FRIDAY...Mostly cloudy with a chance of snow. Highs 34 to 42. .FRIDAY NIGHT...Mostly cloudy with a chance of snow. Lows 15 to 22. .SATURDAY...Partly sunny with a slight chance of snow. Highs 29 to 37. $$