Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Clear

88°F

31°C

Humidity 35%
Wind Speed ESE 17 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 04 Sep 12:35 PM MDT
Extended Forecast for

Sidney MT

Red Flag Warning until September 4, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until September 4, 09:00pm

    NOW until 9:00pm Fri

    Red Flag Warning

  • This Afternoon

    High: 95 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 61. East southeast wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 26 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. North northeast wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms before noon, then a slight chance of showers.  Partly sunny, with a high near 85. Northeast wind 8 to 13 mph, with gusts as high as 24 mph.  Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight.  Low around 59. East northeast wind 15 to 20 mph, with gusts as high as 32 mph.  Chance of precipitation is 80%.

    Low: 59 °F

    Chance
    T-storms then
    Showers

  • Labor Day

    Labor Day: Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon.  High near 82. East wind around 15 mph becoming west southwest in the afternoon. Winds could gust as high as 29 mph.  Chance of precipitation is 80%.

    High: 82 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, with a low around 54. West wind 9 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 95. Breezy, with a southeast wind 20 to 23 mph, with gusts as high as 32 mph.
Tonight
Mostly clear, with a low around 61. East southeast wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 26 mph.
Saturday
Sunny, with a high near 93. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 62. North northeast wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 85. Northeast wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 59. East northeast wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
Labor Day
Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. High near 82. East wind around 15 mph becoming west southwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 80%.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 54. West wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tuesday
A 20 percent chance of showers before noon. Mostly sunny, with a high near 77. Breezy, with a west wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 44 mph.
Tuesday Night
Mostly clear, with a low around 49. West wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 37 mph.
Wednesday
Mostly sunny, with a high near 76. West wind 9 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Sidney MT
 47.72°N 104.16°W (Elev. 1962 ft)
5:55 am MDT Sep 4, 2026
12pm MDT Sep 4, 2026-6pm MDT Sep 10, 2026
 
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Additional Resources

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