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

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

21°F

-6°C

Humidity 66%
Wind Speed SW 3 mph
Barometer 30.07 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 5 Dec 1:55 am MST
Extended Forecast for

2 Miles SW East Portal CO

Winter Storm Warning December 5, 11:00pm until December 6, 11:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Overnight

    Overnight: A 40 percent chance of snow. Widespread blowing snow, mainly after 5am. Mostly cloudy, with a low around 6. Wind chill values as low as -18. Windy, with a west wind around 31 mph, with gusts as high as 50 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 6 °F

    Chance Snow
    and Blowing
    Snow

  • Friday

    Friday: Snow likely. Widespread blowing snow, mainly before 7am. Mostly cloudy, with a high near 16. Wind chill values as low as -15. Windy, with a west wind 21 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 16 °F

    Snow Likely
    and Blowing
    Snow

  • Friday Night

    Friday Night: Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 10pm. Temperature rising to around 17 by 5am. Wind chill values as low as -10. Windy, with a west wind 24 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

    Low: 11 °F⇑

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Widespread blowing snow. High near 17. Wind chill values as low as -10. Windy, with a west wind 30 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 17 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday Night

    Saturday Night: Snow likely. Widespread blowing snow, mainly before 5am. Mostly cloudy, with a low around 7. Windy, with a west wind 28 to 31 mph, with gusts as high as 50 mph. Chance of precipitation is 70%.

    Low: 7 °F

    Snow Likely
    and Blowing
    Snow

  • Sunday

    Sunday: A 50 percent chance of snow, mainly before 11am. Areas of blowing snow. Mostly sunny, with a high near 15. Windy.

    High: 15 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers after 11pm. Partly cloudy, with a low around 8. Windy.

    Low: 8 °F

    Slight Chance
    Snow Showers
    and Windy

  • Monday

    Monday: A chance of snow showers. Partly sunny, with a high near 19. Windy.

    High: 19 °F

    Chance Snow
    Showers and
    Windy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Windy.

    Low: 12 °F

    Mostly Cloudy
    and Windy

Detailed Forecast

Overnight
A 40 percent chance of snow. Widespread blowing snow, mainly after 5am. Mostly cloudy, with a low around 6. Wind chill values as low as -18. Windy, with a west wind around 31 mph, with gusts as high as 50 mph. Total nighttime snow accumulation of less than a half inch possible.
Friday
Snow likely. Widespread blowing snow, mainly before 7am. Mostly cloudy, with a high near 16. Wind chill values as low as -15. Windy, with a west wind 21 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 10pm. Temperature rising to around 17 by 5am. Wind chill values as low as -10. Windy, with a west wind 24 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.
Saturday
Snow. The snow could be heavy at times. Widespread blowing snow. High near 17. Wind chill values as low as -10. Windy, with a west wind 30 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
Snow likely. Widespread blowing snow, mainly before 5am. Mostly cloudy, with a low around 7. Windy, with a west wind 28 to 31 mph, with gusts as high as 50 mph. Chance of precipitation is 70%.
Sunday
A 50 percent chance of snow, mainly before 11am. Areas of blowing snow. Mostly sunny, with a high near 15. Windy.
Sunday Night
A 20 percent chance of snow showers after 11pm. Partly cloudy, with a low around 8. Windy.
Monday
A chance of snow showers. Partly sunny, with a high near 19. Windy.
Monday Night
Mostly cloudy, with a low around 12. Windy.
Tuesday
A slight chance of snow showers after 11am. Partly sunny, with a high near 25. Very windy.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 20. Very windy.
Wednesday
Snow showers likely. Mostly cloudy, with a high near 26. Windy.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 20. Windy.
Thursday
A chance of snow showers. Partly sunny, with a high near 26. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW East Portal CO
 39.87°N 105.66°W (Elev. 10620 ft)
Last Update:
2:21 pm MST Dec 4, 2025
Forecast Valid:
2am MST Dec 5, 2025-6pm MST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation