National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Fire Weather in the Central and Southern Plains; Pacific Storms Impacting the West

Gusty to high winds and low relative humidity will bring elevated to critical fire weather to the central and southern Plains into Wednesday. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain, and heavy mountain snow. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

29°F

-2°C

Humidity 72%
Wind Speed NE 8 mph
Barometer 29.62 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 17 Feb 2:55 am MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

Winter Weather Advisory until February 18, 11:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until February 18, 11:00pm

    NOW until 11:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 20 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Tuesday

    Tuesday: Snow. Widespread blowing snow. Temperature falling to around 7 by 4pm. Wind chill values as low as -18. Very windy, with a west wind 28 to 33 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 65 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 17 °F⇓

    Snow and
    Blowing Snow

  • Tuesday Night

    Tuesday Night: Snow. Widespread blowing snow, mainly before 11pm. Low around 6. Wind chill values as low as -16. Windy, with a west wind 21 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 6 °F

    Snow and
    Blowing Snow

  • Wednesday

    Wednesday: Snow. Widespread blowing snow, mainly between 11am and 2pm. High near 14. Wind chill values as low as -12. Breezy, with a west southwest wind 21 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 14 °F

    Snow and
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 11pm. Widespread blowing snow, mainly after 8pm. Low around -6. Windy, with a west wind 24 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 90%.

    Low: -6 °F

    Snow and
    Blowing Snow
    then Chance
    Snow and
    Blowing Snow

  • Thursday

    Thursday: Snow likely, mainly after 11am. Widespread blowing snow. Mostly cloudy and cold, with a high near 2. Windy. Chance of precipitation is 60%.

    High: 2 °F

    Snow Likely
    and Blowing
    Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around -9. Breezy.

    Low: -9 °F

    Chance Snow
    and Breezy

  • Friday

    Friday: Snow. Cloudy and cold, with a high near 4. Breezy.

    High: 4 °F

    Snow and
    Breezy

Detailed Forecast

Overnight
Snow likely. Patchy blowing snow. Mostly cloudy, with a steady temperature around 20. Windy, with a southwest wind around 26 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Snow. Widespread blowing snow. Temperature falling to around 7 by 4pm. Wind chill values as low as -18. Very windy, with a west wind 28 to 33 mph increasing to 34 to 39 mph in the afternoon. Winds could gust as high as 65 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
Snow. Widespread blowing snow, mainly before 11pm. Low around 6. Wind chill values as low as -16. Windy, with a west wind 21 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow. Widespread blowing snow, mainly between 11am and 2pm. High near 14. Wind chill values as low as -12. Breezy, with a west southwest wind 21 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow, mainly before 11pm. Widespread blowing snow, mainly after 8pm. Low around -6. Windy, with a west wind 24 to 33 mph, with gusts as high as 55 mph. Chance of precipitation is 90%.
Thursday
Snow likely, mainly after 11am. Widespread blowing snow. Mostly cloudy and cold, with a high near 2. Windy. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around -9. Breezy.
Friday
Snow. Cloudy and cold, with a high near 4. Breezy.
Friday Night
Snow, mainly before 11pm. Mostly cloudy, with a low around -7. Breezy.
Saturday
A chance of snow. Partly sunny and cold, with a high near 8. Windy.
Saturday Night
Mostly clear, with a low around -3. Breezy.
Sunday
A slight chance of snow. Mostly sunny, with a high near 20. Breezy.
Sunday Night
Partly cloudy, with a low around 8. Breezy.
Monday
Mostly sunny, with a high near 24. Blustery.
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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:
2:26 am MST Feb 17, 2026
Forecast Valid:
3am MST Feb 17, 2026-6pm MST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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