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City of Challis, IDChallis, ID Weather Forecast
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Challis Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | |  | |  | | | | | | |
| Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Chance of Rain | Sunny | Partly Cloudy | Sunny | Partly Cloudy | Sunny | Partly Cloudy |
| Hi: 68°FHi: 20°C | Lo: 42°FLo: 6°C | Hi: 72°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 73°FHi: 23°C | Lo: 46°FLo: 8°C | Hi: 74°FHi: 23°C | Lo: 47°FLo: 8°C | Hi: 76°FHi: 24°C | Lo: 48°FLo: 9°C | Hi: 76°FHi: 24°C | Hi: 72°FHi: 22°C Lo: 47°FLo: 8°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1231 AM MDT Sun Sep 20 2026 
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Issued: 107 AM MDT Sun Sep 20 2026
Key Messages
- Drier weather arrives today
- Patchy frost/freeze conditions once again tonight
- Showers and storms possible Tuesday/Wednesday and again late next week
Discussion
... Issued at 102 AM MDT Sun Sep 20 2026
Dry and cool temperatures are expected today. Highs today will be a few degrees below normal. Overnight lows going into Monday morning will be chilly once again and marginal for frost advisories in the Snake River Plain. On Tuesday, a low pressure system over Nevada will weaken and lift no...