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 Snow

33°F

1°C

Humidity 95%
Wind Speed N 6 mph
Barometer 29.86 in
Dewpoint 32°F (0°C)
Visibility 0.75 mi
Wind Chill27°F (-3°C)
Last update 18 May 12:15 pm MDT
Extended Forecast for

4 Miles W Berthoud Falls CO

Winter Weather Advisory May 18, 12:40pm until May 18, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory May 18, 12:40pm until May 18, 09:00pm

    NOW until 9:00pm Mon

    Winter Weather Advisory

  • This Afternoon

    High: 29 °F

    Heavy Snow
    and Breezy

  • Tonight

    Tonight: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 18. West southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: Snow showers likely after noon. Some thunder is also possible. Increasing clouds, with a high near 33. West southwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 33 °F

    Mostly Sunny
    then Snow
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Snow showers, mainly before midnight. Low around 23. Breezy, with a west northwest wind 9 to 15 mph becoming south after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Snow Showers
    then Chance
    Snow Showers
    and Breezy

  • Wednesday

    Wednesday: Snow showers likely, mainly after noon. Some thunder is also possible. Mostly cloudy, with a high near 37. Breezy, with a south southwest wind 13 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 37 °F

    Snow Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers before midnight. Some thunder is also possible. Partly cloudy, with a low around 20.

    Low: 20 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Thursday

    Thursday: A 50 percent chance of snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 41. Breezy.

    High: 41 °F

    Breezy.
    Mostly Sunny
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: A chance of snow showers, mainly before midnight. Some thunder is also possible. Partly cloudy, with a low around 23. Blustery.

    Low: 23 °F

    Chance Snow
    Showers and
    Blustery

Detailed Forecast

This Afternoon
Snow showers. The snow could be heavy at times. Some thunder is also possible. High near 29. Breezy, with a south wind 11 to 15 mph becoming west. Winds could gust as high as 28 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 4 to 8 inches possible.
Tonight
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 18. West southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
Snow showers likely after noon. Some thunder is also possible. Increasing clouds, with a high near 33. West southwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow showers, mainly before midnight. Low around 23. Breezy, with a west northwest wind 9 to 15 mph becoming south after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow showers likely, mainly after noon. Some thunder is also possible. Mostly cloudy, with a high near 37. Breezy, with a south southwest wind 13 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of snow showers before midnight. Some thunder is also possible. Partly cloudy, with a low around 20.
Thursday
A 50 percent chance of snow showers after noon. Some thunder is also possible. Mostly sunny, with a high near 41. Breezy.
Thursday Night
A chance of snow showers, mainly before midnight. Some thunder is also possible. Partly cloudy, with a low around 23. Blustery.
Friday
A chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 44. Breezy.
Friday Night
Partly cloudy, with a low around 25. Blustery.
Saturday
Mostly sunny, with a high near 48. Breezy.
Saturday Night
Partly cloudy, with a low around 29. Breezy.
Sunday
Sunny, with a high near 53. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Berthoud Falls CO
 39.79°N 105.89°W (Elev. 12375 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