Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Overcast

32°F

0°C

Humidity 57%
Wind Speed W 16 mph
Barometer 30.16 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 25 Nov 2:15 am MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Overnight

    Overnight: A 30 percent chance of snow showers.  Mostly cloudy, with a low around 8. Wind chill values as low as -8. Windy, with a west northwest wind 24 to 26 mph, with gusts as high as 40 mph.  Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 8 °F

    Chance Snow
    Showers and
    Windy

  • Tuesday

    Tuesday: A 30 percent chance of snow showers before 11am.  Mostly sunny, with a high near 13. Wind chill values as low as -13. Blustery, with a west northwest wind 15 to 22 mph, with gusts as high as 34 mph.  New snow accumulation of less than a half inch possible.

    High: 13 °F

    Blustery.
    Chance Snow
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 9. Wind chill values as low as -8. Breezy, with a west wind 13 to 18 mph, with gusts as high as 36 mph.

    Low: 9 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Wednesday

    Wednesday: A 20 percent chance of snow showers.  Partly sunny, with a high near 17. Wind chill values as low as -9. Windy, with a west wind 21 to 28 mph, with gusts as high as 44 mph.

    High: 17 °F

    Slight Chance
    Snow Showers
    and Windy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 14. Breezy, with a west wind 15 to 22 mph, with gusts as high as 38 mph.

    Low: 14 °F

    Mostly Cloudy
    and Breezy

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 25. Breezy.

    High: 25 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. Breezy.

    Low: 16 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: A slight chance of snow showers after 11am.  Mostly sunny, with a high near 23. Breezy.

    High: 23 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Friday Night

    Friday Night: A chance of snow showers.  Mostly cloudy, with a low around 8.

    Low: 8 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
A 30 percent chance of snow showers. Mostly cloudy, with a low around 8. Wind chill values as low as -8. Windy, with a west northwest wind 24 to 26 mph, with gusts as high as 40 mph. Total nighttime snow accumulation of 1 to 3 inches possible.
Tuesday
A 30 percent chance of snow showers before 11am. Mostly sunny, with a high near 13. Wind chill values as low as -13. Blustery, with a west northwest wind 15 to 22 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
Mostly clear, with a low around 9. Wind chill values as low as -8. Breezy, with a west wind 13 to 18 mph, with gusts as high as 36 mph.
Wednesday
A 20 percent chance of snow showers. Partly sunny, with a high near 17. Wind chill values as low as -9. Windy, with a west wind 21 to 28 mph, with gusts as high as 44 mph.
Wednesday Night
Mostly cloudy, with a low around 14. Breezy, with a west wind 15 to 22 mph, with gusts as high as 38 mph.
Thanksgiving Day
Mostly sunny, with a high near 25. Breezy.
Thursday Night
Partly cloudy, with a low around 16. Breezy.
Friday
A slight chance of snow showers after 11am. Mostly sunny, with a high near 23. Breezy.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 8.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 14.
Saturday Night
Snow showers likely. Mostly cloudy, with a low around 5.
Sunday
Snow showers. Cloudy and cold, with a high near 8.
Sunday Night
Snow showers likely. Mostly cloudy, with a low around 1.
Monday
Snow showers likely. Partly sunny and cold, with a high near 8. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
2:21 pm MST Nov 24, 2025
2am MST Nov 25, 2025-6pm MST Dec 1, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database