Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Sidney-Richland (KSDY)

Lat: 47.7°NLon: 104.2°WElev: 1985.0ft.

Mostly Cloudy

79°F

26°C

Humidity 54%
Wind Speed S 6 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 Sep 01:56 PM MDT
Extended Forecast for

3 Miles SSW Sidney MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. South wind 5 to 7 mph becoming east northeast.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 55. Northeast wind 5 to 7 mph.  Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly after 5pm.  Cloudy, with a high near 68. East northeast wind 6 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am.  Cloudy, with a low around 51. East northeast wind 9 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%.

    Low: 51 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely.  Cloudy, with a high near 64. East wind around 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 71. South southeast wind 5 to 14 mph, with gusts as high as 24 mph.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. Southeast wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. South southeast wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. South wind 5 to 7 mph becoming east northeast.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Northeast wind 5 to 7 mph. Chance of precipitation is 40%.
Saturday
Showers likely, mainly after 5pm. Cloudy, with a high near 68. East northeast wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly after 2am. Cloudy, with a low around 51. East northeast wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Sunday
Showers likely. Cloudy, with a high near 64. East wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 48. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 71. South southeast wind 5 to 14 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 50. Southeast wind 9 to 14 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 77. South southeast wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 52. South southeast wind 6 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 80. South southeast wind 6 to 8 mph.
Wednesday Night
A slight chance of showers. Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Sidney MT
 47.67°N 104.18°W (Elev. 1946 ft)
12:41 pm MDT Sep 18, 2026
2pm MDT Sep 18, 2026-6pm MDT Sep 24, 2026
 
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Additional Resources

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