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Sunnyside Park, MT Weather Forecast
Sunnyside Park, MT Weather Forecast Date: 336 AM MDT Thu Oct 22 2026
The area/counties/county of: Cascade County Below 5000ft, including the city of Great Falls.or toggle through each period.
Today... Sunny. Highs in the lower 70s. South winds up to 10 mph with gusts to around 25 mph.
Tonight... Mostly clear in the evening then becoming mostly cloudy. Lows in the lower 40s. Southeast winds up to 10 mph shifting to the southwest after midnight.
Friday... Breezy, cooler. Slight chance of rain in the morning, then rain and snow in the afternoon. Snow accumulation up to 2 inches. Highs in the lower 50s. Northwest winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon. Gusts up to 45 mph. Chance of precipitation near 100%.
Friday Night... Colder. Cloudy with snow with rain likely in the evening, then partly cloudy after midnight. Moderate snow accumulations. Lows in the upper 20s. Northwest winds 10 to 15 mph with gusts to around 30 mph shifting to the west after midnight. Chance of precipitation 90%.
Saturday... Colder, sunny. Highs in the lower 40s. South winds up to 10 mph.
Saturday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 20s.
Sunday... Mostly cloudy. A 20% chance of snow. Highs in the upper 30s. Lows in the upper 20s.
Sunday Night... Mostly cloudy. A 20% chance of snow. Highs in the upper 30s. Lows in the upper 20s.
Monday... Mostly cloudy. Highs in the lower 40s. Lows in the upper 20s.
Monday Night... Mostly cloudy. Highs in the lower 40s. Lows in the upper 20s.
Tuesday... Mostly sunny. A 20% chance of rain in the afternoon. Highs in the mid 40s.
Tuesday Night... Mostly cloudy with a 40% chance of rain and snow. Lows in the upper 20s.
POP = Probability of Precipitation
Sunnyside Park Radar Loop
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