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Round Butte Reservoir, MT Weather Forecast
Round Butte Reservoir, MT Weather Forecast Date: 804 AM MDT Sat Aug 08 2026
The area/counties/county of: Northern Rosebud, including the cities of: Colstrip and Forsyth.or toggle through each period.
Rest of Today... Sunny. Patchy smoke. Highs in the upper 90s. Northwest winds 5 to 15 mph.
Tonight... Partly cloudy. Areas of smoke in the evening and overnight, then patchy smoke after 3 am. Lows around 60. Northeast winds 5 to 15 mph.
Sunday... Mostly sunny. Patchy smoke in the morning and early afternoon, then areas of smoke late in the afternoon. Highs in the mid 90s. East winds 5 to 10 mph in the morning shifting to the north 5 to 15 mph in the afternoon.
Sunday Night... Partly cloudy. Patchy smoke early in the evening. Lows around 60. Northeast winds 5 to 10 mph.
Monday... Sunny. Highs in the lower 90s. Northeast winds 5 to 10 mph.
Monday Night... Mostly clear. Lows in the lower 60s.
Tuesday... Sunny. Highs in the lower 90s.
Tuesday Night... Partly cloudy. A 30% chance of showers overnight. Lows in the lower 60s.
Wednesday... Partly sunny. Slight chance of showers in the morning, then chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 30%.
Wednesday Night... Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain showers overnight. Lows in the mid 50s. Chance of precipitation 40%.
Thursday... Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 50%.
Thursday Night... Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain showers overnight. Lows in the lower 50s. Chance of precipitation 50%.
POP = Probability of Precipitation
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