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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Buffalo - Johnson County Airport (KBYG)

Lat: 44.38122°NLon: 106.71947°WElev: 4925.0ft.

Clear

55°F

13°C

Humidity 47%
Wind Speed SSE 9 MPH
Barometer 29.72 in (1006.44 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 25 Dec 01:05 AM MST
Extended Forecast for

21 Miles ENE Ten Sleep WY

  • Overnight

    Overnight: A slight chance of snow before 2am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 33. Very windy, with a west southwest wind 34 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Snow and Very
    Windy

  • Christmas Day

    Christmas Day: A 40 percent chance of snow, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 40. Windy, with a west wind 26 to 33 mph, with gusts as high as 50 mph. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance Snow
    and Windy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. Windy, with a west wind 23 to 26 mph, with gusts as high as 40 mph.

    Low: 26 °F

    Partly Cloudy
    and Windy

  • Friday

    Friday: A 20 percent chance of snow after 11am. Partly sunny, with a high near 30. Windy, with a southwest wind 22 to 28 mph, with gusts as high as 41 mph.

    High: 30 °F

    Slight Chance
    Snow and
    Windy

  • Friday Night

    Friday Night: A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. Windy, with a west wind 22 to 26 mph, with gusts as high as 40 mph.

    Low: 18 °F

    Chance Snow
    and Windy
    then Mostly
    Cloudy and
    Breezy

  • Saturday

    Saturday: A 40 percent chance of snow after 11am. Partly sunny, with a high near 22. Breezy, with a west wind 17 to 22 mph, with gusts as high as 33 mph.

    High: 22 °F

    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around -1. North northwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: -1 °F

    Snow Likely
    then Chance
    Snow

  • Sunday

    Sunday: Sunny, with a high near 11. Blustery.

    High: 11 °F

    Sunny and
    Blustery

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 4. Breezy.

    Low: 4 °F

    Mostly Clear
    and Breezy

Detailed Forecast

Overnight
A slight chance of snow before 2am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 33. Very windy, with a west southwest wind 34 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 20%.
Christmas Day
A 40 percent chance of snow, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 40. Windy, with a west wind 26 to 33 mph, with gusts as high as 50 mph. New snow accumulation of less than a half inch possible.
Thursday Night
Partly cloudy, with a low around 26. Windy, with a west wind 23 to 26 mph, with gusts as high as 40 mph.
Friday
A 20 percent chance of snow after 11am. Partly sunny, with a high near 30. Windy, with a southwest wind 22 to 28 mph, with gusts as high as 41 mph.
Friday Night
A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. Windy, with a west wind 22 to 26 mph, with gusts as high as 40 mph.
Saturday
A 40 percent chance of snow after 11am. Partly sunny, with a high near 22. Breezy, with a west wind 17 to 22 mph, with gusts as high as 33 mph.
Saturday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around -1. North northwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Sunday
Sunny, with a high near 11. Blustery.
Sunday Night
Mostly clear, with a low around 4. Breezy.
Monday
Sunny, with a high near 26. Breezy.
Monday Night
Mostly cloudy, with a low around 18. Breezy.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 34. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles ENE Ten Sleep WY
 44.17°N 107.06°W (Elev. 9600 ft)
Last Update:
12:02 am MST Dec 25, 2025
Forecast Valid:
1am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation