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Watchtower Lake, MT Weather Forecast
Watchtower Lake, MT Weather Forecast Date: 1223 PM MDT Wed Sep 23 2026
The area/counties/county of: Bitterroot/Sapphire Mountains, including the city of Sula.or toggle through each period.
Tonight... Partly cloudy. Lows in the 40s. Southeast winds to 15 mph after midnight.
Thursday... Mostly sunny. Highs in the 70s. South winds to 15 mph.
Thursday Night... Mostly clear. Lows in the upper 40s to mid 50s. South winds 15 to 20 mph with gusts to around 35 mph.
Friday... Partly cloudy. A 20% chance of rain in the afternoon. Highs in the upper 60s to mid 70s. South winds 15 to 20 mph with gusts to around 35 mph.
Friday Night... Rain likely in the evening, then a chance of rain after midnight. Chance of rain 60%. Lows in the 30s to lower 40s. West winds to 15 mph with gusts to around 35 mph.
Saturday... Partly cloudy. Cooler. Highs in the 50s.
Saturday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows in the 30s to lower 40s.
Sunday... Mostly cloudy. A 20% chance of rain in the afternoon. Highs in the mid 50s to lower 60s.
Sunday Night... Mostly cloudy with a 50% chance of rain. Lows in the 30s to lower 40s.
Monday... Mostly cloudy. A 20% chance of rain in the morning. Highs in the 50s.
Monday Night... Partly cloudy. Lows in the 30s.
Tuesday... Mostly sunny. Highs in the 50s to lower 60s.
Tuesday Night... Partly cloudy. A 20% chance of rain after midnight. Lows in the 30s.
POP = Probability of Precipitation
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