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

24°F

-4°C

Humidity 54%
Wind Speed W 16 G 20 mph
Barometer 30.21 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 11 Mar 4:35 am MDT
Extended Forecast for

3 Miles W Saint Marys Glacier CO

High Wind Watch March 12, 03:00am until March 13, 06:00am
Click here for hazard details and duration
High Wind Watch

  • Overnight

    Overnight: Snow showers likely. Mostly cloudy, with a steady temperature around 6. Wind chill values as low as -19. Windy, with a west northwest wind 28 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 3 to 5 inches possible.

    Low: 6 °F

    Snow Showers
    Likely and
    Windy

  • Wednesday

    Wednesday: A 30 percent chance of snow showers, mainly before 9am. Sunny, with a high near 16. Wind chill values as low as -22. Windy, with a west northwest wind 29 to 32 mph, with gusts as high as 48 mph. New snow accumulation of less than a half inch possible.

    High: 16 °F

    Windy. Chance
    Snow Showers
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 11. Wind chill values as low as -9. Windy, with a west wind 26 to 34 mph, with gusts as high as 55 mph.

    Low: 11 °F

    Mostly Clear
    and Windy

  • Thursday

    Thursday: Mostly sunny, with a high near 25. Wind chill values as low as -8. Strong and damaging winds, with a west wind 40 to 45 mph increasing to 50 to 55 mph in the afternoon. Winds could gust as high as 80 mph.

    High: 25 °F

    Mostly Sunny
    and Damaging
    Winds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19. Very windy, with a west wind 44 to 49 mph decreasing to 36 to 41 mph after midnight. Winds could gust as high as 75 mph.

    Low: 19 °F

    Mostly Cloudy
    and Very
    Windy

  • Friday

    Friday: Mostly sunny, with a high near 28. Very windy.

    High: 28 °F

    Mostly Sunny
    and Very
    Windy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 23. Very windy.

    Low: 23 °F

    Partly Cloudy
    and Very
    Windy

  • Saturday

    Saturday: A chance of snow showers after noon. Partly sunny, with a high near 31. Very windy.

    High: 31 °F

    Very Windy.
    Partly Sunny
    then Chance
    Snow Showers

  • Saturday Night

    Saturday Night: Snow likely. Mostly cloudy, with a low around 10. Very windy.

    Low: 10 °F

    Snow Likely
    and Very
    Windy

Detailed Forecast

Overnight
Snow showers likely. Mostly cloudy, with a steady temperature around 6. Wind chill values as low as -19. Windy, with a west northwest wind 28 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 3 to 5 inches possible.
Wednesday
A 30 percent chance of snow showers, mainly before 9am. Sunny, with a high near 16. Wind chill values as low as -22. Windy, with a west northwest wind 29 to 32 mph, with gusts as high as 48 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly clear, with a low around 11. Wind chill values as low as -9. Windy, with a west wind 26 to 34 mph, with gusts as high as 55 mph.
Thursday
Mostly sunny, with a high near 25. Wind chill values as low as -8. Strong and damaging winds, with a west wind 40 to 45 mph increasing to 50 to 55 mph in the afternoon. Winds could gust as high as 80 mph.
Thursday Night
Mostly cloudy, with a low around 19. Very windy, with a west wind 44 to 49 mph decreasing to 36 to 41 mph after midnight. Winds could gust as high as 75 mph.
Friday
Mostly sunny, with a high near 28. Very windy.
Friday Night
Partly cloudy, with a low around 23. Very windy.
Saturday
A chance of snow showers after noon. Partly sunny, with a high near 31. Very windy.
Saturday Night
Snow likely. Mostly cloudy, with a low around 10. Very windy.
Sunday
Snow likely. Mostly cloudy, with a high near 16. Very windy.
Sunday Night
Snow likely. Cloudy, with a low around 14. Windy.
Monday
Snow likely. Mostly cloudy, with a high near 25. Very windy.
Monday Night
A chance of snow. Mostly cloudy, with a low around 24. Very windy.
Tuesday
A slight chance of snow. Partly sunny, with a high near 34. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
3:36 am MDT Mar 11, 2026
Forecast Valid:
4am MDT Mar 11, 2026-6pm MDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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