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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Overcast

39°F

4°C

Humidity 60%
Wind Speed W 12 G 17 mph
Barometer 29.94 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 27 Dec 12:15 am MST
Extended Forecast for

4 Miles NE Trail Ridge CO

Winter Weather Advisory December 27, 11:00am until December 28, 11:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: A 40 percent chance of snow. Mostly cloudy, with a steady temperature around 21. Windy, with a west southwest wind 23 to 25 mph, with gusts as high as 38 mph. Total nighttime snow accumulation of less than one inch possible.

    Low: 21 °F

    Chance Snow
    and Windy

  • Saturday

    Saturday: Snow likely. Patchy blowing snow. Cloudy, with a high near 22. Breezy, with a west southwest wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 22 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Snow. Patchy blowing snow. Low around -1. Wind chill values as low as -17. Breezy, with a west wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: -1 °F

    Snow and
    Patchy
    Blowing Snow

  • Sunday

    Sunday: Snow likely, mainly before 11am. Cloudy through mid morning, then gradual clearing and cold, with a high near 6. Wind chill values as low as -21. Breezy, with a west wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 6 °F

    Breezy. Snow
    Likely then
    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -5. Breezy, with a west wind around 18 mph, with gusts as high as 25 mph.

    Low: -5 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 18. Breezy.

    High: 18 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

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

    Low: 4 °F

    Mostly Clear
    and Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 26. Breezy.

    High: 26 °F

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 11. Breezy.

    Low: 11 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Overnight
A 40 percent chance of snow. Mostly cloudy, with a steady temperature around 21. Windy, with a west southwest wind 23 to 25 mph, with gusts as high as 38 mph. Total nighttime snow accumulation of less than one inch possible.
Saturday
Snow likely. Patchy blowing snow. Cloudy, with a high near 22. Breezy, with a west southwest wind 17 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow. Patchy blowing snow. Low around -1. Wind chill values as low as -17. Breezy, with a west wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Sunday
Snow likely, mainly before 11am. Cloudy through mid morning, then gradual clearing and cold, with a high near 6. Wind chill values as low as -21. Breezy, with a west wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Mostly clear, with a low around -5. Breezy, with a west wind around 18 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 18. Breezy.
Monday Night
Mostly clear, with a low around 4. Breezy.
Tuesday
Sunny, with a high near 26. Breezy.
Tuesday Night
Partly cloudy, with a low around 11. Breezy.
Wednesday
Mostly sunny, with a high near 28. Breezy.
Wednesday Night
Mostly cloudy, with a low around 14. Breezy.
New Year's Day
Mostly cloudy, with a high near 30.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 17. Breezy.
Friday
A chance of snow. Mostly cloudy, with a high near 27. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Trail Ridge CO
 40.48°N 105.7°W (Elev. 12300 ft)
Last Update:
9:39 pm MST Dec 26, 2025
Forecast Valid:
12am MST Dec 27, 2025-6pm MST Jan 2, 2026
 
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Additional Resources

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Chance of Precipitation