Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

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

NA

-6°F

-21°C

Humidity 81%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint -10°F (-23°C)
Visibility NA
Wind Chill-16°F (-27°C)
Last update 19 Jan 04:00 AM MST
Extended Forecast for

Culbertson MT

  • M.L.King Day

    M.L.King Day: Mostly cloudy, with a high near 16. Wind chill values between -5 and -15. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 16 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of snow, mainly after 4am.  Cloudy, with a low around 6. Calm wind.  New snow accumulation of less than a half inch possible.

    Low: 6 °F

    Cloudy then
    Chance Snow

  • Tuesday

    Tuesday: Snow likely before 11am.  Mostly cloudy, with a high near 22. Light and variable wind becoming northwest 13 to 18 mph in the morning. Winds could gust as high as 28 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 22 °F

    Snow Likely
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow after 11pm.  Mostly cloudy, with a low around 9. Wind chill values between zero and 5. West northwest wind 13 to 16 mph, with gusts as high as 26 mph.  New snow accumulation of less than one inch possible.

    Low: 9 °F

    Chance Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 20. Northwest wind around 20 mph, with gusts as high as 32 mph.

    High: 20 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around -1. West northwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: -1 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 4. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 4 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -19. North northwest wind 5 to 8 mph becoming calm  after midnight.

    Low: -19 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -3. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: -3 °F

    Cold

Detailed Forecast

M.L.King Day
Mostly cloudy, with a high near 16. Wind chill values between -5 and -15. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of snow, mainly after 4am. Cloudy, with a low around 6. Calm wind. New snow accumulation of less than a half inch possible.
Tuesday
Snow likely before 11am. Mostly cloudy, with a high near 22. Light and variable wind becoming northwest 13 to 18 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Tuesday Night
A 40 percent chance of snow after 11pm. Mostly cloudy, with a low around 9. Wind chill values between zero and 5. West northwest wind 13 to 16 mph, with gusts as high as 26 mph. New snow accumulation of less than one inch possible.
Wednesday
Partly sunny, with a high near 20. Northwest wind around 20 mph, with gusts as high as 32 mph.
Wednesday Night
Mostly cloudy, with a low around -1. West northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Thursday
Mostly cloudy, with a high near 4. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Partly cloudy, with a low around -19. North northwest wind 5 to 8 mph becoming calm after midnight.
Friday
Mostly sunny and cold, with a high near -3. Calm wind becoming east southeast around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around -15. Southeast wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 8. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around -4.
Sunday
Partly sunny, with a high near 16.
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ABOUT THIS FORECAST

 
Point Forecast:
Culbertson MT
 48.14°N 104.51°W (Elev. 1919 ft)
1:57 am MST Jan 19, 2026
4am MST Jan 19, 2026-6pm MST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database