Brown Lake, ID Weather Forecast
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Brown Lake Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Partly Cloudy | Partly Cloudy | Patchy Fog | Fog | Patchy Fog | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Sunny | Mostly Clear |
| Hi: 67°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 72°FHi: 22°C | Lo: 43°FLo: 6°C | Hi: 73°FHi: 23°C | Lo: 42°FLo: 6°C | Hi: 79°FHi: 26°C | Lo: 48°FLo: 9°C | Hi: 74°FHi: 23°C | Lo: 44°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 41°FLo: 5°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1133 PM PDT Wed Sep 30 2026 

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Issued: 1249 AM MDT Thu Oct 1 2026
Discussion
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KEY MESSAGES:- Patchy valley fog this morning, especially Northwest Montana.
- Warming and drying trend Friday through Sunday.
- Increasing westerly winds on Monday and potential isolated afternoon storms as a weak disturbance flattens the ridge.
- Strong high pressure re-establishes late next week, maintaining a prolonged warm and dry pattern.
Today through Friday Night: Patchy morning valley fog will dissipate by mid- to late morning. Otherwise, zonal flow aloft will bring periodic mid- a...
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