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

Granby-Grand County Airport (KGNB)

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

Fair

64°F

18°C

Humidity 42%
Wind Speed E 5 mph
Barometer 30.34 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 7 Sep 8:55 pm MDT
Extended Forecast for

East Portal CO

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. West wind around 8 mph.

    Low: 46 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 64. West wind 6 to 8 mph.

    High: 64 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. West wind 5 to 8 mph, with gusts as high as 16 mph.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 22 mph.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. West wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66. Breezy.

    High: 66 °F

    Sunny then
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 65. Breezy.

    High: 65 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. West wind around 8 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 64. West wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 42. West wind 5 to 8 mph, with gusts as high as 16 mph.
Wednesday
Sunny, with a high near 65. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 43. West wind 5 to 8 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 66. Breezy.
Thursday Night
Mostly clear, with a low around 45.
Friday
Mostly sunny, with a high near 65. Breezy.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45.
Saturday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 63.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 43.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
East Portal CO
 39.91°N 105.64°W (Elev. 10397 ft)
Last Update:
8:11 pm MDT Sep 7, 2026
Forecast Valid:
9pm MDT Sep 7, 2026-6pm MDT Sep 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation