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City of Sidney, MTSidney, MT 7-Day Night Weather Forecast
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Sidney, MT Weather Forecast
Sidney, MT Weather Forecast Date: 412 PM MDT Mon Oct 26 2026
The area/counties/county of: Richland, including the cities of: Sidney and Fairview.or toggle through each period.
Tonight... Mostly cloudy. Lows in the upper 20s. Southeast wind 10 to 15 mph.
Tuesday... A slight chance of snow in the morning. Rain likely. Highs in the upper 40s. Southeast wind 10 to 15 mph, becoming southwest in the afternoon. Chance of precipitation 70%.
Tuesday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 20s. Southwest wind around 5 mph.
Wednesday... Sunny. Highs in the upper 50s. West wind 10 to 15 mph.
Wednesday Night... Mostly clear. Lows in the mid 20s. West wind around 5 mph in the evening, becoming light and variable.
Thursday... Partly cloudy. Highs in the lower 50s. Lows in the lower 20s.
Thursday Night... Partly cloudy. Highs in the lower 50s. Lows in the lower 20s.
Friday... Partly sunny. Highs in the upper 40s.
Friday Night... A slight chance of rain. Lows around 30.
Saturday... A chance of rain. Highs in the mid 50s. Lows in the lower 30s.
Sunday... A chance of rain. Highs in the mid 50s. Lows in the lower 30s.
POP = Probability of Precipitation
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