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

5°F

-15°C

Humidity 62%
Wind Speed NW 7 mph
Barometer 30.04 in
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 25 Jan 6:35 pm MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: Snow likely, mainly before 9pm. Widespread blowing snow, mainly after midnight. Cloudy during the early evening, then gradual clearing, with a low around -11. Wind chill values as low as -38. Windy, with a west northwest wind 21 to 28 mph, with gusts as high as 46 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: -11 °F

    Snow Likely
    and Blowing
    Snow then
    Blowing Snow
    and Windy

  • Monday

    Monday: Widespread blowing snow, mainly after 4pm. Sunny and cold, with a high near 5. Wind chill values as low as -36. Windy, with a west wind 28 to 32 mph, with gusts as high as 50 mph.

    High: 5 °F

    Blowing Snow
    and Windy

  • Monday Night

    Monday Night: Widespread blowing snow, mainly after 1am. Partly cloudy, with a steady temperature around 2. Wind chill values as low as -27. Very windy, with a west wind 30 to 38 mph, with gusts as high as 49 mph.

    Low: 2 °F

    Blowing Snow
    and Very
    Windy

  • Tuesday

    Tuesday: A 20 percent chance of snow after 11am. Mostly sunny and cold, with a high near 9. Wind chill values as low as -23. Blustery, with a west wind around 23 mph, with gusts as high as 39 mph.

    High: 9 °F

    Slight Chance
    Snow and
    Blustery

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 2. Breezy, with a west wind 20 to 22 mph, with gusts as high as 37 mph.

    Low: 2 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 16. Breezy.

    High: 16 °F

    Mostly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 2. Blustery.

    Low: 2 °F

    Mostly Cloudy
    and Blustery

  • Thursday

    Thursday: A slight chance of snow after 11am. Mostly sunny, with a high near 13. Breezy.

    High: 13 °F

    Slight Chance
    Snow and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of snow. Partly cloudy, with a low around 2. Breezy.

    Low: 2 °F

    Slight Chance
    Snow and
    Breezy

Detailed Forecast

Tonight
Snow likely, mainly before 9pm. Widespread blowing snow, mainly after midnight. Cloudy during the early evening, then gradual clearing, with a low around -11. Wind chill values as low as -38. Windy, with a west northwest wind 21 to 28 mph, with gusts as high as 46 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.
Monday
Widespread blowing snow, mainly after 4pm. Sunny and cold, with a high near 5. Wind chill values as low as -36. Windy, with a west wind 28 to 32 mph, with gusts as high as 50 mph.
Monday Night
Widespread blowing snow, mainly after 1am. Partly cloudy, with a steady temperature around 2. Wind chill values as low as -27. Very windy, with a west wind 30 to 38 mph, with gusts as high as 49 mph.
Tuesday
A 20 percent chance of snow after 11am. Mostly sunny and cold, with a high near 9. Wind chill values as low as -23. Blustery, with a west wind around 23 mph, with gusts as high as 39 mph.
Tuesday Night
Mostly clear, with a low around 2. Breezy, with a west wind 20 to 22 mph, with gusts as high as 37 mph.
Wednesday
Mostly sunny, with a high near 16. Breezy.
Wednesday Night
Mostly cloudy, with a low around 2. Blustery.
Thursday
A slight chance of snow after 11am. Mostly sunny, with a high near 13. Breezy.
Thursday Night
A slight chance of snow. Partly cloudy, with a low around 2. Breezy.
Friday
A slight chance of snow. Mostly sunny, with a high near 14. Blustery.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 6. Breezy.
Saturday
A slight chance of snow. Partly sunny, with a high near 18. Blustery.
Saturday Night
Mostly cloudy, with a low around 8. Breezy.
Sunday
Mostly sunny, with a high near 20. 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:
2:17 pm MST Jan 25, 2026
Forecast Valid:
6pm MST Jan 25, 2026-6pm MST Feb 1, 2026
 
Forecast Discussion
 
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