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.

Partly Cloudy

49°F

9°C

Humidity 72%
Wind Speed Calm
Barometer 30.54 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 20 Aug 8:15 am MDT
Extended Forecast for

East Portal CO

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 70. West northwest wind 7 to 13 mph becoming north in the afternoon. Winds could gust as high as 21 mph.

    High: 70 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 49. East northeast wind 5 to 9 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 73. West wind 6 to 10 mph becoming east in the afternoon. Winds could gust as high as 16 mph.

    High: 73 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 49. East southeast wind around 6 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Showers and possibly a thunderstorm after noon. High near 71. West southwest wind around 6 mph becoming light and variable. Chance of precipitation is 80%.

    High: 71 °F

    Mostly Sunny
    then Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely then
    Mostly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 67. Breezy. Chance of precipitation is 60%.

    High: 67 °F

    Mostly Sunny
    and Breezy
    then T-storms
    Likely

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely after noon. Mostly sunny, with a high near 67.

    High: 67 °F

    Sunny then
    T-storms
    Likely

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 70. West northwest wind 7 to 13 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Tonight
Partly cloudy, with a low around 49. East northeast wind 5 to 9 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 73. West wind 6 to 10 mph becoming east in the afternoon. Winds could gust as high as 16 mph.
Friday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 49. East southeast wind around 6 mph becoming west after midnight. Chance of precipitation is 20%.
Saturday
Showers and possibly a thunderstorm after noon. High near 71. West southwest wind around 6 mph becoming light and variable. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Sunday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 67. Breezy. Chance of precipitation is 60%.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47.
Monday
Showers and thunderstorms likely after noon. Mostly sunny, with a high near 67.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 66.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
East Portal CO
 39.91°N 105.64°W (Elev. 10397 ft)
Last Update:
4:33 am MDT Aug 20, 2026
Forecast Valid:
8am MDT Aug 20, 2026-6pm MDT Aug 26, 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