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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

Lat: 47.91973°NLon: 104.32619°WElev: 2480.0ft.

NA

18°F

-8°C

Humidity 81%
Wind Speed WNW 10 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Wind Chill6°F (-14°C)
Last update 09 Jan 07:30 AM MST
Extended Forecast for

8 Miles NNE Lambert MT

  • Today

    Today: A slight chance of snow between 11am and noon. Mostly cloudy, then gradual clearing during the afternoon, with a high near 27. West northwest wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 27 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of snow, mainly between midnight and 4am. Patchy freezing fog between 11pm and midnight. Cloudy, with a low around 15. West northwest wind 5 to 11 mph. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance Snow
    and Patchy
    Freezing Fog

  • Saturday

    Saturday: Patchy freezing fog before 10am. Mostly cloudy, with a high near 30. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 30 °F

    Patchy
    Freezing Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 21. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 21 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 43. West wind 14 to 17 mph, with gusts as high as 26 mph.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. West southwest wind around 14 mph, with gusts as high as 23 mph.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 49. Breezy, with a west wind 15 to 22 mph, with gusts as high as 32 mph.

    High: 49 °F

    Mostly Cloudy
    then Cloudy
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. West wind 18 to 21 mph, with gusts as high as 30 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 43. West northwest wind 18 to 20 mph, with gusts as high as 29 mph.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
A slight chance of snow between 11am and noon. Mostly cloudy, then gradual clearing during the afternoon, with a high near 27. West northwest wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
A 30 percent chance of snow, mainly between midnight and 4am. Patchy freezing fog between 11pm and midnight. Cloudy, with a low around 15. West northwest wind 5 to 11 mph. New snow accumulation of less than a half inch possible.
Saturday
Patchy freezing fog before 10am. Mostly cloudy, with a high near 30. Calm wind becoming west southwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 21. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 43. West wind 14 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 31. West southwest wind around 14 mph, with gusts as high as 23 mph.
Monday
Mostly cloudy, with a high near 49. Breezy, with a west wind 15 to 22 mph, with gusts as high as 32 mph.
Monday Night
Mostly cloudy, with a low around 34. West wind 18 to 21 mph, with gusts as high as 30 mph.
Tuesday
Partly sunny, with a high near 43. West northwest wind 18 to 20 mph, with gusts as high as 29 mph.
Tuesday Night
Mostly cloudy, with a low around 28. West northwest wind 10 to 15 mph, with gusts as high as 23 mph.
Wednesday
Partly sunny, with a high near 44. West wind around 10 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
A chance of snow. Partly sunny, with a high near 39. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Lambert MT
 47.78°N 104.57°W (Elev. 2500 ft)
Last Update:
2:05 am MST Jan 9, 2026
Forecast Valid:
7am MST Jan 9, 2026-6pm MST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation