| NWS Forecast for: Lost River Valleys Issued by: National Weather Service Pocatello, ID Last Update: 841 PM MDT Mon May 18 2026 | |
| Tonight: Partly cloudy. Lows 27 to 34. North winds around 10 mph in the evening...becoming light and variable. Tuesday: Mostly sunny. Highs 54 to 64. Light and variable winds...becoming southwest around 10 mph in the afternoon. Tuesday Night: Mostly cloudy in the evening then clearing. Lows 31 to 38. West winds around 10 mph in the evening...becoming light and variable. Wednesday: Partly sunny. Highs 56 to 66. West winds up to 10 mph. Wednesday Night: Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 32 to 39. Northwest winds 10 to 15 mph. Thursday: Mostly sunny with a chance of rain showers and snow showers. Highs 58 to 68. Thursday Night Through Friday Night: Partly cloudy. Lows 33 to 43. Highs 61 to 71. Saturday: Sunny. Highs 68 to 78. Saturday Night: Partly cloudy. Lows 40 to 47. Sunday And Sunday Night: Mostly clear. Highs 71 to 81. Lows 41 to 49. Memorial Day: Mostly sunny. Highs 71 to 81. | |
| Zone Forecast: Lost River Valleys | |
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