Pierce, ID Weather Forecast
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| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Chance of T-Storm | Chance of Rain | Partly Cloudy | Mostly Clear | Sunny | Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 56°FHi: 13°C | Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C | Lo: 36°FLo: 2°C | Hi: 75°FHi: 24°C | Lo: 40°FLo: 4°C | Hi: 75°FHi: 24°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 35°FLo: 2°C |
| POP: 100% | POP: 20% | POP: 20% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1122 PM PDT Sun Sep 06 2026 

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Issued: 355 AM MDT Mon Sep 7 2026
Discussion
...
KEY MESSAGES:- Significant rain event for northwest Montana through Tuesday morning.
- Gradual drying trend develops mid-week alongside morning valley fog.
- 80 percent of ensemble solutions depict another weather-maker to impact the Northern Rockies this weekend.
As anticipated, the upper low has been bringing moderate to heavy rain intensities to the region overnight. No changes were made to the forecast. We still have flood watches out for portions of northwest Montana today to account...
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