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 >

Current conditions at

TIMBERCREST (TCTM8)

Lat: 45.15694°NLon: 109.36056°WElev: 6400.0ft.

NA

41°F

5°C

Humidity 41%
Wind Speed W 9 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 26 Dec 12:15 AM MST
Extended Forecast for

15 Miles ENE Cooke City MT

  • Overnight

    Overnight: Snow showers.  Low around 18. Wind chill values as low as zero. Southwest wind 26 to 28 mph, with gusts as high as 39 mph.  Chance of precipitation is 90%. Total nighttime snow accumulation of around 3 inches.

    Low: 18 °F

    Snow Showers

  • Friday

    Friday: Snow showers. The snow could be heavy at times.  Temperature rising to near 21 by noon, then falling to around 14 during the remainder of the day. Wind chill values as low as -5. Southwest wind 24 to 32 mph, with gusts as high as 48 mph.  Chance of precipitation is 90%. New snow accumulation of around 6 inches.

    High: 21 °F

    Heavy Snow

  • Friday Night

    Friday Night: Snow showers likely, mainly before 8pm.  Cloudy, with a low around 7. Wind chill values as low as -15. West southwest wind 26 to 30 mph, with gusts as high as 41 mph.  Chance of precipitation is 60%. New snow accumulation of around 2 inches.

    Low: 7 °F

    Snow Showers
    Likely

  • Saturday

    Saturday: Snow. The snow could be heavy at times.  Temperature rising to near 10 by 10am, then falling to around 1 during the remainder of the day. Wind chill values as low as -20. West wind 24 to 29 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 41 mph.  Chance of precipitation is 90%. New snow accumulation of around 4 inches.

    High: 10 °F

    Heavy Snow

  • Saturday Night

    Saturday Night: Snow likely before 11pm, then a slight chance of snow showers after 11pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around -12. Northwest wind 9 to 16 mph.  Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: -12 °F

    Snow Likely
    then Slight
    Chance Snow
    Showers

  • Sunday

    Sunday: Sunny and cold, with a high near 4. West wind 11 to 13 mph.

    High: 4 °F

    Cold

  • Sunday Night

    Sunday Night: Partly cloudy, with a temperature falling to near -5 by 8pm, then rising to around 0 during the remainder of the night. West wind around 15 mph.

    Low: -5 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 14. West southwest wind around 15 mph.

    High: 14 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around 7. West wind around 16 mph.

    Low: 7 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow showers. Low around 18. Wind chill values as low as zero. Southwest wind 26 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of around 3 inches.
Friday
Snow showers. The snow could be heavy at times. Temperature rising to near 21 by noon, then falling to around 14 during the remainder of the day. Wind chill values as low as -5. Southwest wind 24 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of around 6 inches.
Friday Night
Snow showers likely, mainly before 8pm. Cloudy, with a low around 7. Wind chill values as low as -15. West southwest wind 26 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of around 2 inches.
Saturday
Snow. The snow could be heavy at times. Temperature rising to near 10 by 10am, then falling to around 1 during the remainder of the day. Wind chill values as low as -20. West wind 24 to 29 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of around 4 inches.
Saturday Night
Snow likely before 11pm, then a slight chance of snow showers after 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -12. Northwest wind 9 to 16 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Sunday
Sunny and cold, with a high near 4. West wind 11 to 13 mph.
Sunday Night
Partly cloudy, with a temperature falling to near -5 by 8pm, then rising to around 0 during the remainder of the night. West wind around 15 mph.
Monday
Sunny and cold, with a high near 14. West southwest wind around 15 mph.
Monday Night
Partly cloudy, with a low around 7. West wind around 16 mph.
Tuesday
Mostly cloudy, with a high near 20. West wind 13 to 15 mph.
Tuesday Night
Mostly cloudy, with a low around 12. West wind around 16 mph.
Wednesday
Mostly cloudy, with a high near 22. West wind 15 to 17 mph.
Wednesday Night
Partly cloudy, with a low around 13. West southwest wind 16 to 18 mph.
New Year's Day
A 10 percent chance of snow showers. Mostly cloudy, with a high near 22. West southwest wind 15 to 17 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ENE Cooke City MT
 45.11°N 109.65°W (Elev. 11001 ft)
11:15 pm MST Dec 25, 2025
1am MST Dec 26, 2025-6pm MST Jan 1, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database