Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Overcast

21°F

-6°C

Humidity 92%
Wind Speed SE 9 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 19°F (-7°C)
Visibility 7.00 mi
Wind Chill11°F (-12°C)
Last update 31 Dec 08:35 PM MST
Extended Forecast for

8 Miles SSW Sidney MT

Dense Fog Advisory December 31, 08:54pm until January 1, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 31, 08:54pm until January 1, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Tonight

    Low: 13 °F

    Patchy
    Freezing Fog

  • New Year's Day

    New Year's Day: Patchy freezing fog before 7am, then patchy freezing fog after 11am. Mostly cloudy, with a high near 25. Calm wind becoming north northwest around 6 mph.

    High: 25 °F

    Patchy
    Freezing Fog

  • Thursday Night

    Thursday Night: Patchy freezing fog before 11pm. Cloudy, with a low around 13. Calm wind.

    Low: 13 °F

    Patchy
    Freezing Fog
    then Cloudy

  • Friday

    Friday: Cloudy, with a high near 26. Southeast wind 3 to 5 mph.

    High: 26 °F

    Cloudy

  • Friday Night

    Friday Night: Patchy freezing fog between 11pm and 2am. Mostly cloudy, with a low around 12. Light and variable wind.

    Low: 12 °F

    Patchy
    Freezing Fog

  • Saturday

    Saturday: Mostly cloudy, with a high near 25. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 25 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 16. Southeast wind around 6 mph.

    Low: 16 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 38. Southeast wind 6 to 8 mph becoming southwest in the afternoon.

    High: 38 °F

    Partly Sunny

Detailed Forecast

Tonight
Patchy freezing fog before 1am, then patchy freezing fog after 4am. Mostly cloudy, then gradually becoming mostly clear, with a low around 13. East wind around 5 mph becoming calm in the evening.
New Year's Day
Patchy freezing fog before 7am, then patchy freezing fog after 11am. Mostly cloudy, with a high near 25. Calm wind becoming north northwest around 6 mph.
Thursday Night
Patchy freezing fog before 11pm. Cloudy, with a low around 13. Calm wind.
Friday
Cloudy, with a high near 26. Southeast wind 3 to 5 mph.
Friday Night
Patchy freezing fog between 11pm and 2am. Mostly cloudy, with a low around 12. Light and variable wind.
Saturday
Mostly cloudy, with a high near 25. Light and variable wind becoming east around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 16. Southeast wind around 6 mph.
Sunday
Partly sunny, with a high near 38. Southeast wind 6 to 8 mph becoming southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 18. Southwest wind around 6 mph.
Monday
Partly sunny, with a high near 36. West wind 6 to 8 mph.
Monday Night
Mostly cloudy, with a low around 17. West wind around 6 mph.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
Mostly cloudy, with a high near 33.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSW Sidney MT
 47.61°N 104.24°W (Elev. 1972 ft)
6:39 pm MST Dec 31, 2025
8pm MST Dec 31, 2025-6pm MST Jan 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database