| NWS Forecast for: Big Lost Highlands/Copper Basin Issued by: National Weather Service Pocatello, ID Last Update: 1231 AM MDT Thu Aug 20 2026 |  |
| Today: Sunny, warmer. Highs 82 to 92. Tonight: Mostly cloudy. Lows 52 to 62. Friday: Partly sunny. A slight chance of rain in the afternoon. Highs 82 to 92. Friday Night: Mostly cloudy with a chance of rain. Lows 53 to 63. Saturday: Rain showers likely and a chance of thunderstorms. Highs 74 to 84. Saturday Night: Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows 48 to 58. Sunday: Mostly sunny with a slight chance of showers and thunderstorms. Highs 71 to 81. Sunday Night: Mostly clear. Lows 44 to 54. Monday: Mostly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 72 to 82. Monday Night: Mostly cloudy with a slight chance of rain. Lows 45 to 55. Tuesday: Partly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 72 to 82. Tuesday Night: Mostly cloudy with a slight chance of rain. Lows 45 to 55. Wednesday: Mostly sunny with a slight chance of showers and thunderstorms. Highs 71 to 81. | |
| Zone Forecast: Big Lost Highlands/Copper Basin | |
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