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Riverside, Montana Weather Forecast
Riverside, Montana Weather
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Weather Forecast for Riverside, Montana : Valley County
Issued: 3:21 am MST Dec 17, 2025 Latitude: 48.2622405 Longitude: -106.7381064 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
40% chance of blowing snow on Today 60% chance of blowing snow on Tonight Increasing Clouds on Thursday Partly Sunny on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday 30% chance of snow on Monday Partly Sunny on Tuesday
High: 43°F Low: -2°F High: 27°F High: 42°F High: 17°F High: 26°F High: 28°F High: 23°F
Low: 14°F Low: 1 °F Low: 5 °F Low: 12°F Low: 5°F  
Blowing Snow Blowing Snow Increasing Clouds Partly Sunny Mostly Sunny Mostly Sunny Snow Partly Sunny
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40% chance of blowing snow Today Today... A chance of rain before 2pm, then a chance of snow after 4pm. Patchy blowing snow after 5pm. Mostly sunny early, then becoming cloudy, with a high near 43. Very windy, with a south southwest wind 18 to 28 mph becoming west 30 to 40 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.

60% chance of blowing snow Tonight Tonight... Snow likely, mainly before midnight. Widespread blowing snow, mainly between 8pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around -2. Wind chill values between -15 and -25. Very windy, with a north northwest wind 31 to 41 mph decreasing to 17 to 27 mph. Winds could gust as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 27. Wind chill values between -10 and -20. North northwest wind 7 to 13 mph becoming south southeast in the morning. Winds could gust as high as 20 mph.

50% chance of freezing rain & snow Thursday Night Thursday Night... A slight chance of freezing rain before 8pm, then a chance of snow between 8pm and 2am, then a chance of freezing rain after 2am. Mostly cloudy, with a low around 14. South southeast wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Partly Sunny on Friday Friday... Partly sunny, with a high near 42. Breezy, with a south southwest wind 15 to 22 mph becoming west northwest in the afternoon. Winds could gust as high as 32 mph.

20% chance of snow Friday Night Friday Night... A 20 percent chance of snow. Mostly cloudy, with a low around 1. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 17. North northwest wind around 6 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 5. Southeast wind around 7 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 26. East southeast wind around 7 mph.

20% chance of snow Sunday Night Sunday Night... A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 12. East southeast wind around 8 mph.

30% chance of snow Monday Monday... A 30 percent chance of snow. Mostly cloudy, with a high near 28. East southeast wind around 9 mph becoming northwest in the afternoon.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 5.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 23.

Sun Almanac for Riverside, Montana
Sunrise: 07:53 AM
Sunset: 4:14 PM
Civil Sunrise:07:16 AM
Civil Sunset: 4:50 PM
Nautical Sunrise: 06:36 AM
Nautical Sunset: 5:30 PM
Astro Sunrise: 05:58 AM
Astro Sunset: 6:08 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.