Sidney, Montana Weather
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Weather Forecast for Sidney, Montana : Richland County
Issued: 2:07 pm MDT May 11, 2025 Latitude: 47.7166836 Longitude: -104.1563253 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Sunny on This Afternoon 30% chance of thunderstorms on Tonight Sunny on Monday Sunny on Tuesday 90% chance of rain on Wednesday 80% chance of rain on Thursday Partly Sunny on Friday 10% chance of on Saturday
High: 95°F Low: 55°F High: 95°F High: 78°F High: 64°F High: 56°F High: 60°F High: 63°F
Low: 56°F Low: 50°F Low: 43°F Low: 40°F Low: 36°F  
Mostly Sunny Thunderstorms Sunny Sunny Rain Rain Partly Sunny Partly Sunny
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Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 95. South southwest wind 8 to 11 mph.
30% chance of thunderstorms Tonight Tonight... A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Breezy, with a west wind 17 to 22 mph becoming light southwest. Winds could gust as high as 32 mph. Chance of precipitation is 30%.
Sunny on Monday Monday... Sunny, with a high near 95. Southwest wind 7 to 13 mph, with gusts as high as 18 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 56. West southwest wind 8 to 14 mph becoming north after midnight. Winds could gust as high as 21 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 78. North northwest wind 13 to 16 mph, with gusts as high as 25 mph.
50% chance of rain Tuesday Night Tuesday Night... A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 50. North northwest wind 10 to 13 mph, with gusts as high as 18 mph.
90% chance of rain Wednesday Wednesday... Showers. High near 64. North wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
80% chance of thunderstorms Wednesday Night Wednesday Night... Showers and possibly a thunderstorm. Low around 43. North wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
80% chance of rain Thursday Thursday... Showers. High near 56. Breezy, with a north northwest wind 16 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
40% chance of rain Thursday Night Thursday Night... A 40 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 40. Northwest wind 10 to 18 mph, with gusts as high as 29 mph.
Partly Sunny on Friday Friday... Partly sunny, with a high near 60. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 36.
10% chance of Saturday Saturday... A slight chance of showers. Partly sunny, with a high near 63.
Sun Almanac for Sidney, Montana
Sunrise: 05:23 AM
Sunset: 8:23 PM
Civil Sunrise:04:47 AM
Civil Sunset: 8:59 PM
Nautical Sunrise: 04:00 AM
Nautical Sunset: 9:46 PM
Astro Sunrise: 03:03 AM
Astro Sunset: 10:43 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.