National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Clear

48°F

9°C

Humidity 46%
Wind Speed W 9 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 18 Oct 06:20 PM MDT
Extended Forecast for

Sidney MT

  • Tonight

    Tonight: Mostly clear, with a low around 29. West northwest wind 6 to 13 mph becoming south after midnight. Winds could gust as high as 30 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of rain after 4pm. Increasing clouds, with a high near 61. South wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 61 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 37. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 37 °F

    Chance Rain
    then Slight
    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 51. Breezy, with a west northwest wind 14 to 24 mph, with gusts as high as 41 mph.

    High: 51 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27. Northwest wind 8 to 18 mph, with gusts as high as 32 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 54. West wind around 6 mph.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29. West southwest wind 3 to 5 mph.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59. Light and variable wind becoming south 5 to 7 mph in the afternoon.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. Southeast wind around 6 mph.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 29. West northwest wind 6 to 13 mph becoming south after midnight. Winds could gust as high as 30 mph.
Sunday
A 20 percent chance of rain after 4pm. Increasing clouds, with a high near 61. South wind 8 to 13 mph, with gusts as high as 21 mph.
Sunday Night
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 37. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 51. Breezy, with a west northwest wind 14 to 24 mph, with gusts as high as 41 mph.
Monday Night
Partly cloudy, with a low around 27. Northwest wind 8 to 18 mph, with gusts as high as 32 mph.
Tuesday
Sunny, with a high near 54. West wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 29. West southwest wind 3 to 5 mph.
Wednesday
Sunny, with a high near 59. Light and variable wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 36. Southeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 63. South wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 35. South southwest wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sidney MT
 47.72°N 104.16°W (Elev. 1962 ft)
Last Update:
2:09 pm MDT Oct 18, 2025
Forecast Valid:
6pm MDT Oct 18, 2025-6pm MDT Oct 25, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation