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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Clear

40°F

4°C

Humidity 67%
Wind Speed SW 10 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 30 Dec 02:56 PM MST
Extended Forecast for

Sidney MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 17. South southwest wind around 6 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 24. North northwest wind around 6 mph becoming east northeast in the afternoon.

    High: 24 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a steady temperature around 17. East wind around 5 mph becoming calm in the evening.

    Low: 17 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 25. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 25 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12. Light and variable wind.

    Low: 12 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 25. Calm wind becoming east around 6 mph in the afternoon.

    High: 25 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14. East wind 3 to 5 mph.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 33. East southeast wind 5 to 7 mph.

    High: 33 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19. East wind around 6 mph becoming west southwest after midnight.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 17. South southwest wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 24. North northwest wind around 6 mph becoming east northeast in the afternoon.
Wednesday Night
Partly cloudy, with a steady temperature around 17. East wind around 5 mph becoming calm in the evening.
New Year's Day
Mostly sunny, with a high near 25. Calm wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 12. Light and variable wind.
Friday
Mostly cloudy, with a high near 25. Calm wind becoming east around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 14. East wind 3 to 5 mph.
Saturday
Partly sunny, with a high near 33. East southeast wind 5 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 19. East wind around 6 mph becoming west southwest after midnight.
Sunday
Mostly sunny, with a high near 38. West wind 6 to 9 mph.
Sunday Night
Partly cloudy, with a low around 19. West wind around 7 mph.
Monday
Mostly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 35.
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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:
1:16 pm MST Dec 30, 2025
Forecast Valid:
3pm MST Dec 30, 2025-6pm MST Jan 6, 2026
 
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