Weather WorldO'Brien Lake, MT 7-Day Night Weather Forecast
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O'Brien Lake, MT Weather Forecast
O'Brien Lake, MT Weather Forecast Date: 1222 AM MDT Wed Sep 23 2026
The area/counties/county of: Kootenai/Cabinet Region, including the cities of: Libby and Eureka.or toggle through each period.
Today... Partly cloudy. Highs in the 70s.
Tonight... Partly cloudy. Lows in the 40s.
Thursday... Partly cloudy. Highs in the mid 70s to lower 80s.
Thursday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s to lower 50s.
Friday... Mostly cloudy. A 50% chance of rain in the afternoon. Highs in the upper 60s to mid 70s.
Friday Night... Rain likely. Chance of rain 90%. Lows in the upper 30s to mid 40s.
Saturday... Mostly cloudy with a 50% chance of rain. Highs in the 50s to lower 60s.
Saturday Night... Partly cloudy. Lows in the mid 30s to lower 40s.
Sunday... Mostly cloudy. Highs in the upper 50s to mid 60s.
Sunday Night... Mostly cloudy. Lows in the mid 30s to lower 40s.
Monday... Partly cloudy. Highs in the upper 50s to mid 60s.
Monday Night... Partly cloudy. Lows in the mid 30s to lower 40s.
POP = Probability of Precipitation
O'Brien Lake Radar Loop
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