Snow in the Rockies; Showers and Thunderstorms Along the Gulf Coast; Potential Winter Storm for Northern Mid-Atlantic and Interior New England

A winter-like pattern will continue over much of the Lower 48 over the next few days, with snow stretching from the Rockies today into the Middle Mississippi Valley on Monday. Showers and thunderstorms will develop along the Gulf Coast and Southeast on Monday. As the storm moves northward late Monday into Tuesday, winter weather is possible from the Central Appalachians to Interior New England. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

22°F

-6°C

Humidity 94%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 30 Nov 7:15 pm MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

Winter Weather Advisory November 30, 07:26pm until December 1, 05:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory November 30, 07:26pm until December 1, 05:00am

    NOW until 5:00am Mon

    Winter Weather Advisory

  • Tonight

    Low: -3 °F

    Snow then
    Snow Likely
    and Blustery

  • Monday

    Monday: A 20 percent chance of snow before 8am.  Mostly sunny and cold, with a high near 5. Wind chill values as low as -25. Blustery, with a west northwest wind 17 to 23 mph, with gusts as high as 34 mph.

    High: 5 °F

    Blustery.
    Slight Chance
    Snow then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2. Wind chill values as low as -20. Blustery, with a west wind around 23 mph, with gusts as high as 40 mph.

    Low: 2 °F

    Partly Cloudy
    and Blustery

  • Tuesday

    Tuesday: A 30 percent chance of snow after 11am.  Partly sunny, with a high near 15. Wind chill values as low as -17. Breezy, with a west wind 20 to 22 mph, with gusts as high as 38 mph.  Little or no snow accumulation expected.

    High: 15 °F

    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 11pm.  Mostly cloudy, with a low around 5. Breezy, with a west wind 8 to 17 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%.

    Low: 5 °F

    Snow Likely
    and Breezy

  • Wednesday

    Wednesday: Snow.  High near 6. Chance of precipitation is 100%.

    High: 6 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 11pm.  Mostly cloudy, with a low around -2. Chance of precipitation is 60%.

    Low: -2 °F

    Snow Likely
    then Slight
    Chance Snow

  • Thursday

    Thursday: Mostly sunny and cold, with a high near 10. Breezy.

    High: 10 °F

    Cold and
    Breezy

Detailed Forecast

Tonight
Snow, mainly before 2am. Low around -3. Wind chill values as low as -22. Blustery, with a west northwest wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 5 inches possible.
Monday
A 20 percent chance of snow before 8am. Mostly sunny and cold, with a high near 5. Wind chill values as low as -25. Blustery, with a west northwest wind 17 to 23 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 2. Wind chill values as low as -20. Blustery, with a west wind around 23 mph, with gusts as high as 40 mph.
Tuesday
A 30 percent chance of snow after 11am. Partly sunny, with a high near 15. Wind chill values as low as -17. Breezy, with a west wind 20 to 22 mph, with gusts as high as 38 mph. Little or no snow accumulation expected.
Tuesday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 5. Breezy, with a west wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Wednesday
Snow. High near 6. Chance of precipitation is 100%.
Wednesday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around -2. Chance of precipitation is 60%.
Thursday
Mostly sunny and cold, with a high near 10. Breezy.
Thursday Night
Mostly cloudy, with a low around 2. Breezy.
Friday
A chance of snow. Mostly cloudy and cold, with a high near 10. Breezy.
Friday Night
A chance of snow. Mostly cloudy, with a low around 7. Windy.
Saturday
Snow likely. Mostly cloudy, with a high near 13. Windy.
Saturday Night
Snow likely. Mostly cloudy, with a low around 7. Breezy.
Sunday
A chance of snow. Partly sunny, with a high near 11. Breezy.
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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)
6:36 pm MST Nov 30, 2025
7pm MST Nov 30, 2025-6pm MST Dec 7, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database