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.

Mostly Cloudy

38°F

3°C

Humidity 93%
Wind Speed Calm
Barometer 29.83 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 17 May 10:15 pm MDT
Extended Forecast for

4 Miles NW LONG'S PEAK CO

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

  • Tonight

    Tonight: Snow showers. Some thunder is also possible. Low around 28. Southeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.

    Low: 28 °F

    Snow Showers

  • Monday

    Monday: Snow showers. The snow could be heavy at times. Some thunder is also possible. Temperature falling to around 28 by noon. East northeast wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 33 °F⇓

    Heavy Snow

  • Monday Night

    Monday Night: Snow showers, mainly before midnight. Steady temperature around 26. East northeast wind 5 to 7 mph becoming west southwest in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 26 °F

    Snow Showers
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: Snow showers, mainly after noon. Some thunder is also possible. High near 34. Light and variable wind becoming south southeast 5 to 7 mph in the morning. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Chance Snow
    Showers then
    Snow Showers

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before midnight. Low around 24. East wind 5 to 7 mph becoming light and variable. Winds could gust as high as 16 mph. Chance of precipitation is 80%.

    Low: 24 °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 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 23. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: A chance of snow showers after noon, mixing with rain after 3pm. Some thunder is also possible. Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • 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 26.

    Low: 26 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

Detailed Forecast

Tonight
Snow showers. Some thunder is also possible. Low around 28. Southeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.
Monday
Snow showers. The snow could be heavy at times. Some thunder is also possible. Temperature falling to around 28 by noon. East northeast wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Monday Night
Snow showers, mainly before midnight. Steady temperature around 26. East northeast wind 5 to 7 mph becoming west southwest in the evening. Winds could gust 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 34. Light and variable wind becoming south southeast 5 to 7 mph in the morning. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
Snow showers, mainly before midnight. Low around 24. East wind 5 to 7 mph becoming light and variable. Winds could gust as high as 16 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 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 23. Chance of precipitation is 20%.
Thursday
A chance of snow showers after noon, mixing with rain after 3pm. Some thunder is also possible. Mostly sunny, with a high near 46.
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 26.
Friday
A chance of rain and snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 50. Breezy.
Friday Night
Partly cloudy, with a low around 30.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 56. Breezy.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 61. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW LONG'S PEAK CO
 40.31°N 105.65°W (Elev. 10000 ft)
Last Update:
12:45 pm MDT May 17, 2026
Forecast Valid:
11pm 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