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.

Fair

15°F

-9°C

Humidity 88%
Wind Speed NE 5 mph
Barometer 30.23 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 15 Feb 4:35 am MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Today

    Today: Sunny, with a high near 28. Wind chill values as low as -6. Breezy, with a west wind around 22 mph, with gusts as high as 34 mph.

    High: 28 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 16. Wind chill values as low as -1. Windy, with a west wind 20 to 25 mph, with gusts as high as 38 mph.

    Low: 16 °F

    Partly Cloudy
    and Windy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 29. Wind chill values as low as -2. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 34 mph.

    High: 29 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: A 40 percent chance of snow after 11pm. Increasing clouds, with a low around 12. Wind chill values as low as zero. Breezy, with a west southwest wind 16 to 23 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.

    Low: 12 °F

    Chance Snow
    and Breezy

  • Tuesday

    Tuesday: Snow. Widespread blowing snow, mainly after 11am. High near 17. Very windy, with a west wind 24 to 29 mph increasing to 33 to 38 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 90%.

    High: 17 °F

    Snow and
    Blowing Snow

  • Tuesday Night

    Tuesday Night: Snow likely. Widespread blowing snow. Mostly cloudy, with a low around 7. Windy. Chance of precipitation is 70%.

    Low: 7 °F

    Snow Likely
    and Blowing
    Snow

  • Wednesday

    Wednesday: Snow. Widespread blowing snow, mainly after 11am. High near 13. Windy. Chance of precipitation is 80%.

    High: 13 °F

    Snow and
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Snow. Cloudy, with a low around -1. Breezy.

    Low: -1 °F

    Snow and
    Breezy

  • Thursday

    Thursday: Snow. Cloudy and cold, with a high near 4. Windy.

    High: 4 °F

    Snow and
    Windy

Detailed Forecast

Today
Sunny, with a high near 28. Wind chill values as low as -6. Breezy, with a west wind around 22 mph, with gusts as high as 34 mph.
Tonight
Partly cloudy, with a low around 16. Wind chill values as low as -1. Windy, with a west wind 20 to 25 mph, with gusts as high as 38 mph.
Washington's Birthday
Mostly sunny, with a high near 29. Wind chill values as low as -2. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 34 mph.
Monday Night
A 40 percent chance of snow after 11pm. Increasing clouds, with a low around 12. Wind chill values as low as zero. Breezy, with a west southwest wind 16 to 23 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.
Tuesday
Snow. Widespread blowing snow, mainly after 11am. High near 17. Very windy, with a west wind 24 to 29 mph increasing to 33 to 38 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 90%.
Tuesday Night
Snow likely. Widespread blowing snow. Mostly cloudy, with a low around 7. Windy. Chance of precipitation is 70%.
Wednesday
Snow. Widespread blowing snow, mainly after 11am. High near 13. Windy. Chance of precipitation is 80%.
Wednesday Night
Snow. Cloudy, with a low around -1. Breezy.
Thursday
Snow. Cloudy and cold, with a high near 4. Windy.
Thursday Night
Snow. Mostly cloudy, with a low around -6. Breezy.
Friday
Snow likely. Mostly cloudy and cold, with a high near 3. Windy.
Friday Night
A chance of snow. Mostly cloudy, with a low around -5. Breezy.
Saturday
A chance of snow. Partly sunny and cold, with a high near 8. Breezy.
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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:
11:45 pm MST Feb 14, 2026
Forecast Valid:
4am MST Feb 15, 2026-6pm MST Feb 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation