Fremont County, ID Weather Forecast
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Fremont County Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY |
| Chance of T-Storm | Chance of Rain | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Sunny |
| Hi: 58°FHi: 14°C | Lo: 39°FLo: 4°C | Hi: 63°FHi: 17°C | Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 71°FHi: 22°C Lo: 43°FLo: 6°C | Hi: 71°FHi: 22°C Lo: 43°FLo: 6°C | Hi: 73°FHi: 23°C Lo: 44°FLo: 7°C | Hi: 73°FHi: 23°C Lo: 44°FLo: 7°C | Hi: 73°FHi: 23°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1231 AM MDT Sat Sep 19 2026 

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Issued: 106 AM MDT Sat Sep 19 2026
Key Messages
- Light showers with isolated thunderstorms today
- Mostly dry conditions expected through next week, with a few showers and storms possible around midweek
- Cool temperatures to start the week with warming temperatures through the week with temperatures in the mid to upper 70s/low 80s by the end of the week
Discussion
... Issued at 104 AM MDT Sat Sep 19 2026
|Low pressure will settle over eastern Idaho today. Will probably see a mix of sun and clouds today with occasional light rain showers ...
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