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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

Buffalo (K2WX)

Lat: 45.6°NLon: 103.55°WElev: 3002ft.

30°F

-1°C

Humidity 69%
Wind Speed SW 8 mph
Barometer 29.85 in (1013.8 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill22°F (-6°C)
Last update 8 Dec 3:56 am MST
Extended Forecast for

Buffalo SD

High Wind Watch December 9, 08:00am until December 9, 11:00pm
Click here for hazard details and duration
High Wind Watch

  • Overnight

    Overnight: A 20 percent chance of snow. Mostly cloudy, with a steady temperature around 28. Wind chill values as low as 18. Southwest wind around 9 mph, with gusts as high as 17 mph.

    Low: 28 °F

    Slight Chance
    Snow

  • Monday

    Monday: Partly sunny, with a high near 42. Wind chill values as low as 17. Breezy, with a west wind 15 to 23 mph, with gusts as high as 39 mph.

    High: 42 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: A 30 percent chance of snow after 11pm. Mostly cloudy, with a steady temperature around 35. West wind 11 to 17 mph, with gusts as high as 24 mph.

    Low: 35 °F

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of rain before 4pm, then a slight chance of rain and snow. Partly sunny, with a high near 49. Windy, with a west wind 23 to 28 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 20%.

    High: 49 °F

    Windy. Slight
    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. Blustery, with a northwest wind 23 to 28 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 40 mph.

    Low: 22 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 34. West wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely before 3am, then a chance of snow. Cloudy, with a low around 18. South wind 14 to 16 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    Low: 18 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 32. Northwest wind around 17 mph, with gusts as high as 28 mph.

    High: 32 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around -1.

    Low: -1 °F

    Chance Snow

Detailed Forecast

Overnight
A 20 percent chance of snow. Mostly cloudy, with a steady temperature around 28. Wind chill values as low as 18. Southwest wind around 9 mph, with gusts as high as 17 mph.
Monday
Partly sunny, with a high near 42. Wind chill values as low as 17. Breezy, with a west wind 15 to 23 mph, with gusts as high as 39 mph.
Monday Night
A 30 percent chance of snow after 11pm. Mostly cloudy, with a steady temperature around 35. West wind 11 to 17 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of rain before 4pm, then a slight chance of rain and snow. Partly sunny, with a high near 49. Windy, with a west wind 23 to 28 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 22. Blustery, with a northwest wind 23 to 28 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 40 mph.
Wednesday
A 50 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 34. West wind 6 to 13 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely before 3am, then a chance of snow. Cloudy, with a low around 18. South wind 14 to 16 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Thursday
A chance of snow. Mostly cloudy, with a high near 32. Northwest wind around 17 mph, with gusts as high as 28 mph.
Thursday Night
A chance of snow. Mostly cloudy, with a low around -1.
Friday
A slight chance of snow. Mostly cloudy, with a high near 8.
Friday Night
A chance of snow. Cloudy, with a low around 0.
Saturday
A slight chance of snow. Mostly cloudy, with a high near 21.
Saturday Night
Mostly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Buffalo SD
 45.61°N 103.55°W (Elev. 2972 ft)
Last Update:
3:16 am MST Dec 8, 2025
Forecast Valid:
4am MST Dec 8, 2025-6pm MST Dec 14, 2025
 
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