Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Partly Cloudy

11°F

-12°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 29.75 in (1007.45 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 01 Dec 09:56 PM MST
Extended Forecast for

Lambert MT

  • Tonight

    Tonight: A 20 percent chance of snow after 4am.  Cloudy, with a temperature rising to around 26 by 2am. West wind 6 to 15 mph, with gusts as high as 23 mph.

    Low: 13 °F

    Cloudy then
    Slight Chance
    Snow

  • Tuesday

    Tuesday: A slight chance of snow before 8am, then a chance of snow after 1pm.  Cloudy, with a high near 30. West wind 14 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow, mainly before 8pm.  Cloudy, with a low around -9. North wind 8 to 15 mph, with gusts as high as 23 mph.  New snow accumulation of less than a half inch possible.

    Low: -9 °F

    Chance Snow
    then Cloudy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 12. Wind chill values between -10 and -20. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 12 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -2. South southwest wind 6 to 8 mph.

    Low: -2 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 30. West wind 10 to 16 mph, with gusts as high as 25 mph.

    High: 30 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly after 11pm.  Cloudy, with a low around 18. West wind 9 to 11 mph.  New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow, mainly after 11am.  Cloudy, with a high near 29. North northwest wind 10 to 13 mph, with gusts as high as 18 mph.

    High: 29 °F

    Chance Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm.  Cloudy, with a low around 3. East northeast wind 6 to 8 mph.  Chance of precipitation is 60%.

    Low: 3 °F

    Snow Likely

Detailed Forecast

Tonight
A 20 percent chance of snow after 4am. Cloudy, with a temperature rising to around 26 by 2am. West wind 6 to 15 mph, with gusts as high as 23 mph.
Tuesday
A slight chance of snow before 8am, then a chance of snow after 1pm. Cloudy, with a high near 30. West wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Tuesday Night
A 30 percent chance of snow, mainly before 8pm. Cloudy, with a low around -9. North wind 8 to 15 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 12. Wind chill values between -10 and -20. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around -2. South southwest wind 6 to 8 mph.
Thursday
Mostly cloudy, with a high near 30. West wind 10 to 16 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of snow, mainly after 11pm. Cloudy, with a low around 18. West wind 9 to 11 mph. New snow accumulation of less than a half inch possible.
Friday
A 30 percent chance of snow, mainly after 11am. Cloudy, with a high near 29. North northwest wind 10 to 13 mph, with gusts as high as 18 mph.
Friday Night
Snow likely, mainly after 11pm. Cloudy, with a low around 3. East northeast wind 6 to 8 mph. Chance of precipitation is 60%.
Saturday
A 40 percent chance of snow. Cloudy, with a high near 15. North northeast wind around 10 mph.
Saturday Night
A 20 percent chance of snow. Cloudy, with a low around -2. Northeast wind 5 to 7 mph becoming light and variable after midnight.
Sunday
Partly sunny, with a high near 29.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert MT
 47.69°N 104.62°W (Elev. 2451 ft)
1:51 pm MST Dec 1, 2025
10pm MST Dec 1, 2025-6pm MST Dec 8, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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