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.

Overcast

35°F

2°C

Humidity 91%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 18 May 9:15 pm MDT
Extended Forecast for

5 Miles SSE Trail Ridge CO

  • Tonight

    Tonight: Snow showers likely, mainly before midnight. Patchy fog before midnight. Otherwise, mostly cloudy, with a low around 18. West southwest wind around 7 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: Snow showers likely, mainly after 3pm. Some thunder is also possible. Increasing clouds, with a high near 28. West southwest wind around 8 mph becoming east southeast in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 28 °F

    Slight Chance
    Snow Showers
    then Snow
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly before 9pm. Mostly cloudy, with a low around 20. East southeast wind 5 to 9 mph becoming southwest after midnight. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 20 °F

    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Wednesday

    Wednesday: Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 35. West southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers before midnight. Some thunder is also possible. Partly cloudy, with a low around 21. West northwest wind 5 to 10 mph becoming southwest in the evening. Winds could gust as high as 16 mph.

    Low: 21 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Thursday

    Thursday: Snow showers likely after noon. Some thunder is also possible. Partly sunny, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Mostly Sunny
    then Snow
    Showers
    Likely

  • Thursday Night

    Thursday Night: Rain and snow showers likely, becoming all snow after 9pm. Some thunder is also possible. Mostly cloudy, with a low around 23. Chance of precipitation is 70%.

    Low: 23 °F

    Rain/Snow
    Likely then
    Chance Snow
    Showers

  • Friday

    Friday: A chance of snow showers, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 39.

    High: 39 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A slight chance of snow showers before midnight. Partly cloudy, with a low around 25.

    Low: 25 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

Detailed Forecast

Tonight
Snow showers likely, mainly before midnight. Patchy fog before midnight. Otherwise, mostly cloudy, with a low around 18. West southwest wind around 7 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.
Tuesday
Snow showers likely, mainly after 3pm. Some thunder is also possible. Increasing clouds, with a high near 28. West southwest wind around 8 mph becoming east southeast in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow showers likely, mainly before 9pm. Mostly cloudy, with a low around 20. East southeast wind 5 to 9 mph becoming southwest after midnight. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Wednesday
Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 35. West southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday Night
A 20 percent chance of snow showers before midnight. Some thunder is also possible. Partly cloudy, with a low around 21. West northwest wind 5 to 10 mph becoming southwest in the evening. Winds could gust as high as 16 mph.
Thursday
Snow showers likely after noon. Some thunder is also possible. Partly sunny, with a high near 38. Chance of precipitation is 70%.
Thursday Night
Rain and snow showers likely, becoming all snow after 9pm. Some thunder is also possible. Mostly cloudy, with a low around 23. Chance of precipitation is 70%.
Friday
A chance of snow showers, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 39.
Friday Night
A slight chance of snow showers before midnight. Partly cloudy, with a low around 25.
Saturday
A chance of rain and snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 32.
Memorial Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Trail Ridge CO
 40.37°N 105.72°W (Elev. 10899 ft)
Last Update:
12:46 pm MDT May 18, 2026
Forecast Valid:
10pm MDT May 18, 2026-6pm MDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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