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

23°C

74°F

Humidity 30%
Wind Speed E 9 km/h
Barometer 30.41 in
Dewpoint 5°C (41°F)
Visibility 16 km
Last update 21 Jul 8:15 pm MDT
Extended Forecast for

East Portal CO

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 9. Southeast wind 11 to 16 km/h becoming west after midnight. Winds could gust as high as 26 km/h.

    Low: 9 °C

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. High near 21. West wind 8 to 16 km/h becoming south in the afternoon. Winds could gust as high as 26 km/h. Chance of precipitation is 80%.

    High: 21 °C

    Slight Chance
    Showers then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers. Mostly cloudy, with a low around 9. West southwest wind 5 to 14 km/h, with gusts as high as 29 km/h. Chance of precipitation is 60%.

    Low: 9 °C

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 18. West wind 8 to 18 km/h, with gusts as high as 39 km/h. Chance of precipitation is 80%.

    High: 18 °C

    Chance
    Showers then
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 9. West wind 8 to 13 km/h increasing to 16 to 21 km/h after midnight. Winds could gust as high as 39 km/h. Chance of precipitation is 70%.

    Low: 9 °C

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 21.

    High: 21 °C

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 10.

    Low: 10 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 22.

    High: 22 °C

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 11.

    Low: 11 °C

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 9. Southeast wind 11 to 16 km/h becoming west after midnight. Winds could gust as high as 26 km/h.
Wednesday
A slight chance of showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. High near 21. West wind 8 to 16 km/h becoming south in the afternoon. Winds could gust as high as 26 km/h. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers. Mostly cloudy, with a low around 9. West southwest wind 5 to 14 km/h, with gusts as high as 29 km/h. Chance of precipitation is 60%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 18. West wind 8 to 18 km/h, with gusts as high as 39 km/h. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 9. West wind 8 to 13 km/h increasing to 16 to 21 km/h after midnight. Winds could gust as high as 39 km/h. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 21.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 10.
Saturday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 22.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 11.
Sunday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 22.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 11.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 23.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 10.
Tuesday
Showers and possibly a thunderstorm. Partly sunny, with a high near 22.
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ABOUT THIS FORECAST

 
Point Forecast:
East Portal CO
 39.91°N 105.64°W (Elev. 10397 m)
Last Update:
12:46 pm MDT Jul 21, 2026
Forecast Valid:
8pm MDT Jul 21, 2026-6pm MDT Jul 28, 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