Lemhi, ID Weather Forecast
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Lemhi Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Sunny |
| Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 PM MDT Mon Sep 28 2026 

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Issued: 109 PM MDT Mon Sep 28 2026
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KEY MESSAGES:- Near-normal temperatures with the weather pattern during this week, along with mostly dry conditions.
- Increasing winds Tuesday, especially across northwest Montana and the higher terrain.
- Scattered rain showers Tuesday night into early Wednesday then slight warming trend into the remainder of the week.
- Confidence increasing for a warmer and drier than normal early October beyond the 7 day forecast.
Valley inversions in September today started with weak valley inversions...
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