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.

Light Rain

35°F

2°C

Humidity 91%
Wind Speed S 10 G 20 mph
Barometer 29.85 in
Dewpoint 32°F (0°C)
Visibility 1.25 mi
Wind Chill27°F (-3°C)
Last update 18 May 11:55 am MDT
Extended Forecast for

5 Miles SSE Trail Ridge CO

Winter Storm Warning May 18, 12:19pm until May 18, 09:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning May 18, 12:19pm until May 18, 09:00pm

    NOW until 9:00pm Mon

    Winter Storm Warning

  • This Afternoon

    High: 26 °F

    Heavy Snow

  • Tonight

    Tonight: Snow showers, mainly before midnight. Low around 18. South southeast wind around 7 mph becoming west southwest in the evening. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow Showers
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: Snow showers likely after noon. Some thunder is also possible. Mostly sunny through mid morning, then becoming cloudy, with a high near 28. West southwest wind 6 to 9 mph becoming east in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 28 °F

    Partly Sunny
    then Snow
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 19. East wind 5 to 7 mph becoming west southwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 19 °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 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 35 °F

    Slight 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 19.

    Low: 19 °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 39. Chance of precipitation is 60%.

    High: 39 °F

    Mostly Sunny
    then Snow
    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 9pm, then a chance of snow showers. Some thunder is also possible. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 26. East southeast wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 7 to 11 inches possible.
Tonight
Snow showers, mainly before midnight. Low around 18. South southeast wind around 7 mph becoming west southwest in the evening. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Snow showers likely after noon. Some thunder is also possible. Mostly sunny through mid morning, then becoming cloudy, with a high near 28. West southwest wind 6 to 9 mph becoming east in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 19. East wind 5 to 7 mph becoming west southwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Snow showers likely, mainly after noon. Some thunder is also possible. Partly sunny, with a high near 35. West southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of snow showers before midnight. Some thunder is also possible. Partly cloudy, with a low around 19.
Thursday
Snow showers likely after noon. Some thunder is also possible. Partly sunny, with a high near 39. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow showers before 9pm, then a chance of snow showers. Some thunder is also possible. Mostly cloudy, with a low around 23.
Friday
A chance of snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 50. Breezy.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Sunny, with a high near 55. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Trail Ridge CO
 40.37°N 105.72°W (Elev. 10899 ft)
Last Update:
9:12 am MDT May 18, 2026
Forecast Valid:
12pm MDT May 18, 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