National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Overcast

38°F

3°C

Humidity 94%
Wind Speed E 6 mph
Barometer 29.85 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 17 May 9:55 pm MDT
Extended Forecast for

5 Miles SSW LONG'S PEAK CO

Winter Weather Advisory May 18, 12:00am until May 18, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Snow showers. Some thunder is also possible. Steady temperature around 32. Southeast wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 32 °F

    Snow Showers

  • Monday

    Monday: Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 31. Breezy, with a southeast wind 7 to 16 mph becoming east northeast in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 31 °F

    Heavy Snow
    and Breezy

  • Monday Night

    Monday Night: Snow showers, mainly before midnight. Low around 20. West southwest wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Snow Showers
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: Snow showers, mainly after noon. Some thunder is also possible. High near 33. West southwest wind 5 to 8 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Chance Snow
    Showers then
    Snow Showers

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before midnight. Low around 22. East southeast wind 5 to 8 mph becoming southwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 80%.

    Low: 22 °F

    Snow Showers
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 42. Chance of precipitation is 70%.

    High: 42 °F

    Slight Chance
    Snow Showers
    then Snow
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A chance of snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: A slight chance of rain and snow showers before 9pm, then a slight chance of snow showers between 9pm and midnight. Partly cloudy, with a low around 24.

    Low: 24 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

Detailed Forecast

Tonight
Snow showers. Some thunder is also possible. Steady temperature around 32. Southeast wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
Monday
Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 31. Breezy, with a southeast wind 7 to 16 mph becoming east northeast in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Monday Night
Snow showers, mainly before midnight. Low around 20. West southwest wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Snow showers, mainly after noon. Some thunder is also possible. High near 33. West southwest wind 5 to 8 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
Snow showers, mainly before midnight. Low around 22. East southeast wind 5 to 8 mph becoming southwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 80%.
Wednesday
Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 42. Chance of precipitation is 70%.
Wednesday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 21.
Thursday
A chance of snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 45.
Thursday Night
A slight chance of rain and snow showers before 9pm, then a slight chance of snow showers between 9pm and midnight. Partly cloudy, with a low around 24.
Friday
A chance of snow showers after noon, mixing with rain after 3pm. Some thunder is also possible. Mostly sunny, with a high near 47. Breezy.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 54. Breezy.
Saturday Night
Partly cloudy, with a low around 32. Breezy.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 59. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW LONG'S PEAK CO
 40.2°N 105.64°W (Elev. 10364 ft)
Last Update:
12:45 pm MDT May 17, 2026
Forecast Valid:
10pm MDT May 17, 2026-6pm MDT May 24, 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