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Fort Harrison, MT Weather Forecast
Fort Harrison, MT Weather Forecast Date: 1232 AM MDT Wed Sep 09 2026
The area/counties/county of: Southern High Plains, including the cities of: Bynum, Choteau, and Pendroy.or toggle through each period.
Rest of Tonight... Breezy. Partly cloudy. Highs in the lower 70s. Lows 43 to 53. Southwest winds 5 to 25 mph with gusts to around 65 mph.
Thursday... Breezy. Mostly cloudy. Highs in the mid 70s. Southwest winds 10 to 25 mph. Gusts up to 60 mph Decreasing to 40 mph in the afternoon.
Thursday Night... Mostly cloudy. Rain showers likely after midnight. Lows in the mid 40s. West winds 5 to 15 mph with gusts to around 35 mph shifting to the northwest up to 5 mph after midnight. Chance of showers 60%.
Friday... Cooler. Mostly cloudy. Rain showers likely in the morning, then chance of rain showers in the afternoon. Highs in the upper 50s. North winds up to 10 mph. Chance of showers 70%.
Friday Night... Mostly cloudy. Slight chance of rain in the evening, then chance of rain after midnight. Lows in the lower 40s. Northeast winds up to 10 mph. Chance of rain 50%.
Saturday... Mostly cloudy. Rain likely in the morning, then chance of rain in the afternoon. Highs in the lower 50s. Chance of rain 70%.
Saturday Night... Rain showers likely in the evening, then rain showers after midnight. Lows in the upper 30s. Chance of showers 80%.
Sunday... Rain showers and snow showers in the morning, then rain showers likely in the afternoon. Highs in the upper 40s. Chance of precipitation 80%.
Sunday Night... Mostly cloudy. Chance of rain showers in the evening, then slight chance of rain showers after midnight. Lows in the mid 30s. Chance of showers 50%.
Monday... Warmer. Partly cloudy. Highs in the upper 50s. Lows in the upper 30s.
Monday Night... Warmer. Partly cloudy. Highs in the upper 50s. Lows in the upper 30s.
Tuesday... Mostly sunny with a 20% chance of rain showers. Highs in the upper 50s.
Tuesday Night... Mostly cloudy. A 50% chance of rain showers. Lows in the upper 30s. Highs in the lower 50s.
POP = Probability of Precipitation
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