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

45°F

7°C

Humidity 42%
Wind Speed Calm
Barometer 30.42 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 8 Oct 10:55 pm MDT
Extended Forecast for

East Portal CO

  • Tonight

    Tonight: Clear, with a low around 37. West wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 37 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 56. West wind 5 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph.

    High: 56 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. Southeast wind 5 to 7 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.

    Low: 40 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 50. West southwest wind 5 to 8 mph becoming light and variable in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 50%.

    High: 50 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 44. Light west southwest wind becoming west 5 to 9 mph in the evening. Winds could gust as high as 20 mph.

    Low: 44 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 51. Chance of precipitation is 50%.

    High: 51 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 40. Breezy.

    Low: 40 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A chance of rain and snow showers, mainly before noon. Some thunder is also possible. Mostly sunny, with a high near 47. Breezy.

    High: 47 °F

    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 37. West wind 10 to 14 mph, with gusts as high as 22 mph.
Thursday
Increasing clouds, with a high near 56. West wind 5 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 40. Southeast wind 5 to 7 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 50. West southwest wind 5 to 8 mph becoming light and variable in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 44. Light west southwest wind becoming west 5 to 9 mph in the evening. Winds could gust as high as 20 mph.
Saturday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 51. Chance of precipitation is 50%.
Saturday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 40. Breezy.
Sunday
A chance of rain and snow showers, mainly before noon. Some thunder is also possible. Mostly sunny, with a high near 47. Breezy.
Sunday Night
Partly cloudy, with a low around 29.
Columbus Day
A slight chance of rain and snow showers after noon. Mostly sunny, with a high near 46.
Monday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 32.
Tuesday
A chance of rain and snow showers. Mostly sunny, with a high near 50.
Tuesday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 32.
Wednesday
A slight chance of rain and snow showers. Mostly sunny, with a high near 49.
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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:
1:30 pm MDT Oct 8, 2025
Forecast Valid:
11pm MDT Oct 8, 2025-6pm MDT Oct 15, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation