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.

Rain

57°F

14°C

Humidity 88%
Wind Speed NE 6 mph
Barometer 30.47 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 14 Aug 10:15 pm MDT
Extended Forecast for

East Portal CO

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, with a low around 45. West wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 62. West wind 5 to 8 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 70%.

    High: 62 °F

    Slight Chance
    Showers then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 44. Southwest wind 3 to 6 mph.

    Low: 44 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 63. West wind around 6 mph becoming light and variable in the afternoon. Winds could gust as high as 15 mph.

    High: 63 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. North wind 5 to 7 mph becoming southwest in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

    Low: 44 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. Breezy.

    High: 67 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, with a low around 45. West wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 62. West wind 5 to 8 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 44. Southwest wind 3 to 6 mph.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 63. West wind around 6 mph becoming light and variable in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 44. North wind 5 to 7 mph becoming southwest in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 67. Breezy.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.
Wednesday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 65.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 44.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 66.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 45.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 69.
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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:
12:46 pm MDT Aug 14, 2026
Forecast Valid:
10pm MDT Aug 14, 2026-6pm MDT Aug 21, 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