Firth High School, ID Weather Forecast
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Firth High School Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY | SUNDAY NIGHT | MONDAY |
| Chance of T-Storm | Chance of T-Storm | Clearing | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Sunny |
| Hi: 69°FHi: 21°C | Lo: 44°FLo: 7°C | Hi: 74°FHi: 23°C | Lo: 46°FLo: 8°C | Hi: 79°FHi: 26°C | Hi: 79°FHi: 26°C Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C Lo: 50°FLo: 10°C | Hi: 72°FHi: 22°C Lo: 45°FLo: 7°C | Hi: 72°FHi: 22°C Lo: 45°FLo: 7°C | Lo: 46°FLo: 8°C | Hi: 67°FHi: 19°C |
| POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1231 AM MDT Tue Sep 22 2026 

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Issued: 1136 AM MDT Tue Sep 22 2026
Key Messages
- Showers and thunderstorms ending overnight west to east with brief downpours expected
- Warmer temperatures through Friday
- Breezy Friday afternoon followed by cooler weather this weekend with some potential for showers and storms
Discussion
... Issued at 1105 AM MDT Tue Sep 22 2026
Low pressure will continue shift northeast across Utah, Idaho, and Wyoming through tonight. Stronger showers and storms will produce heavier downpours, with the potential for 0.10"-0.20" in those situations or ...
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