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

72°F

22°C

Humidity 30%
Wind Speed SW 5 mph
Barometer 30.47 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 10 Aug 11:55 am MDT
Extended Forecast for

2 Miles SW East Portal CO

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 67. Northwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 67 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Northwest wind 9 to 13 mph becoming south southwest in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 40%.

    Low: 48 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 67. Northwest wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 67 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 48. Northwest wind 7 to 10 mph becoming west southwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after noon. High near 64. West wind 6 to 10 mph becoming north in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%.

    High: 64 °F

    Partly Sunny
    then T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, then showers and thunderstorms after noon. High near 56. Chance of precipitation is 90%.

    High: 56 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Showers

  • Friday

    Friday: A chance of showers, then showers and thunderstorms after noon. Mostly cloudy, with a high near 58.

    High: 58 °F

    Chance
    Showers then
    T-storms

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 67. Northwest wind 9 to 13 mph, with gusts as high as 20 mph.
Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Northwest wind 9 to 13 mph becoming south southwest in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 67. Northwest wind 9 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 48. Northwest wind 7 to 10 mph becoming west southwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Showers and possibly a thunderstorm after noon. High near 64. West wind 6 to 10 mph becoming north in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Thursday
Showers likely, then showers and thunderstorms after noon. High near 56. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 43.
Friday
A chance of showers, then showers and thunderstorms after noon. Mostly cloudy, with a high near 58.
Friday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 42.
Saturday
Showers and possibly a thunderstorm. Partly sunny, with a high near 59.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW East Portal CO
 39.87°N 105.66°W (Elev. 10620 ft)
Last Update:
12:46 am MDT Aug 10, 2026
Forecast Valid:
12pm MDT Aug 10, 2026-6pm MDT Aug 16, 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