Topaz, ID Weather Forecast
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| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Partly Cloudy | Mostly Sunny | Clearing | Sunny | Mostly Clear | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Clear |
| Lo: 52°FLo: 11°C | Hi: 82°FHi: 28°C | Lo: 56°FLo: 13°C | Hi: 74°FHi: 23°C | Lo: 42°FLo: 6°C | Hi: 68°FHi: 20°C Lo: 42°FLo: 6°C | Hi: 68°FHi: 20°C Lo: 42°FLo: 6°C | Hi: 75°FHi: 24°C Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C | Hi: 78°FHi: 26°C Lo: 47°FLo: 8°C | Hi: 78°FHi: 26°C Lo: 47°FLo: 8°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1236 PM MDT Fri Sep 11 2026 

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Issued: 433 PM MDT Fri Sep 11 2026
Key Messages
- Red Flag Warning in the Snake River plain and Teton Valley (Fire Weather Zone 410) until 9 PM this evening for low humidity and gusty wind. Fire Weather Watch on Saturday noon to 9 pm due to low humidity and gusty wind.
- Saturday afternoon temperatures warm for most, then Sunday into Monday afternoon temperatures cool 10 to 15 degrees, ending critical fire weather conditions. Windy conditions through Sunday.
Discussion
... Issued at 133 PM MDT Fri Sep 11 2026
Broad zonal flow in place to...
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