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

Arapahoe Peak 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 30 percent chance of snow. Mostly cloudy, with a steady temperature around 19. Wind chill values as low as -3. Windy, with a west wind around 32 mph, with gusts as high as 48 mph. Total nighttime snow accumulation of less than one inch possible.

    Low: 19 °F

    Chance Snow
    and Windy

  • Saturday

    Saturday: Snow likely, mainly after 2pm. Areas of blowing snow. Mostly cloudy, with a temperature falling to around 14 by 5pm. Wind chill values as low as -6. Windy, with a west wind 25 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

    High: 18 °F⇓

    Snow Likely
    and Areas
    Blowing Snow

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times. Areas of blowing snow. Low around -4. Wind chill values as low as -21. Windy, with a west wind 18 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: -4 °F

    Heavy Snow
    and Areas
    Blowing Snow

  • Sunday

    Sunday: Snow, mainly before 11am. Areas of blowing snow before 11am. High near 0. Wind chill values as low as -33. Windy, with a west wind 22 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 0 °F

    Snow and
    Areas Blowing
    Snow then
    Chance Snow
    and Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -7. Windy, with a west wind around 26 mph, with gusts as high as 34 mph.

    Low: -7 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: Sunny and cold, with a high near 9. Breezy.

    High: 9 °F

    Cold and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 3. Windy.

    Low: 3 °F

    Mostly Clear
    and Windy

  • Tuesday

    Tuesday: Sunny, with a high near 18. Windy.

    High: 18 °F

    Sunny and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10. Windy.

    Low: 10 °F

    Mostly Clear
    and Windy

Detailed Forecast

Overnight
A 30 percent chance of snow. Mostly cloudy, with a steady temperature around 19. Wind chill values as low as -3. Windy, with a west wind around 32 mph, with gusts as high as 48 mph. Total nighttime snow accumulation of less than one inch possible.
Saturday
Snow likely, mainly after 2pm. Areas of blowing snow. Mostly cloudy, with a temperature falling to around 14 by 5pm. Wind chill values as low as -6. Windy, with a west wind 25 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow. The snow could be heavy at times. Areas of blowing snow. Low around -4. Wind chill values as low as -21. Windy, with a west wind 18 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Sunday
Snow, mainly before 11am. Areas of blowing snow before 11am. High near 0. Wind chill values as low as -33. Windy, with a west wind 22 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Mostly clear, with a low around -7. Windy, with a west wind around 26 mph, with gusts as high as 34 mph.
Monday
Sunny and cold, with a high near 9. Breezy.
Monday Night
Mostly clear, with a low around 3. Windy.
Tuesday
Sunny, with a high near 18. Windy.
Tuesday Night
Mostly clear, with a low around 10. Windy.
Wednesday
Mostly sunny, with a high near 20. Windy.
Wednesday Night
Mostly cloudy, with a low around 12. Breezy.
New Year's Day
A slight chance of snow. Mostly cloudy, with a high near 22. Breezy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 15. Breezy.
Friday
A chance of snow. Mostly cloudy, with a high near 20. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arapahoe Peak CO
 40.02°N 105.65°W (Elev. 12680 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