Winter Storm Shifting From the Central U.S. to the Northeast; Severe Thunderstorms in the South

A winter storm will track to the Lower Mississippi River Valley by Monday and across the central Appalachians Monday night to southern New England by Tuesday. A swath of snow, sleet and freezing rain will spread from the Central Plains east into southern New England by Monday and Tuesday. Severe thunderstorms with damaging winds and tornadoes are possible over the northern Gulf Coast on Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

6°F

-14°C

Humidity 85%
Wind Speed Calm
Barometer 29.85 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 15 Dec 10:54 pm MST
Extended Forecast for

3 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: A slight chance of snow before midnight, then a slight chance of snow after 1am.  Patchy blowing snow after 3am. Cloudy, with a low around -9. Wind chill values as low as -26. West northwest wind 8 to 11 mph, with gusts as high as 49 mph.  Chance of precipitation is 20%.

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

    Low: -9 °F

  • Monday

    Monday: A 30 percent chance of snow, mainly between 10am and noon.  Widespread blowing snow. Cloudy, then gradually becoming mostly sunny and cold, with a high near -3. Wind chill values as low as -33. Blustery, with a west northwest wind 16 to 21 mph, with gusts as high as 65 mph.  New snow accumulation of less than a half inch possible.

    Chance Snow
    and Blowing
    Snow

    High: -3 °F

  • Monday
    Night

    Monday Night: Widespread blowing snow. Partly cloudy, with a low around -11. Wind chill values as low as -44. Very windy, with a west wind 34 to 40 mph, with gusts as high as 65 mph.

    Blowing Snow
    and Very
    Windy

    Low: -11 °F

  • Tuesday

    Tuesday: Sunny and cold, with a high near 5. Wind chill values as low as -41. Very windy, with a west wind 34 to 38 mph, with gusts as high as 60 mph.

    Cold and Very
    Windy

    High: 5 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around -3. Windy, with a west wind 29 to 31 mph, with gusts as high as 49 mph.

    Mostly Clear
    and Windy

    Low: -3 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 25. Windy.

    Mostly Sunny
    and Windy

    High: 25 °F

  • Wednesday
    Night

    Wednesday Night: Mostly cloudy, with a low around 1. Windy.

    Mostly Cloudy
    and Windy

    Low: 1 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 18. Very windy.

    Mostly Sunny
    and Very
    Windy

    High: 18 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 2. Very windy.

    Partly Cloudy
    and Very
    Windy

    Low: 2 °F

Detailed Forecast

Tonight
A slight chance of snow before midnight, then a slight chance of snow after 1am. Patchy blowing snow after 3am. Cloudy, with a low around -9. Wind chill values as low as -26. West northwest wind 8 to 11 mph, with gusts as high as 49 mph. Chance of precipitation is 20%.
Monday
A 30 percent chance of snow, mainly between 10am and noon. Widespread blowing snow. Cloudy, then gradually becoming mostly sunny and cold, with a high near -3. Wind chill values as low as -33. Blustery, with a west northwest wind 16 to 21 mph, with gusts as high as 65 mph. New snow accumulation of less than a half inch possible.
Monday Night
Widespread blowing snow. Partly cloudy, with a low around -11. Wind chill values as low as -44. Very windy, with a west wind 34 to 40 mph, with gusts as high as 65 mph.
Tuesday
Sunny and cold, with a high near 5. Wind chill values as low as -41. Very windy, with a west wind 34 to 38 mph, with gusts as high as 60 mph.
Tuesday Night
Mostly clear, with a low around -3. Windy, with a west wind 29 to 31 mph, with gusts as high as 49 mph.
Wednesday
Mostly sunny, with a high near 25. Windy.
Wednesday Night
Mostly cloudy, with a low around 1. Windy.
Thursday
Mostly sunny, with a high near 18. Very windy.
Thursday Night
Partly cloudy, with a low around 2. Very windy.
Friday
Mostly sunny, with a high near 23. Very windy.
Friday Night
Partly cloudy, with a low around 6. Very windy.
Saturday
Mostly sunny, with a high near 28. Windy.
Saturday Night
Partly cloudy, with a low around 10. Windy.
Sunday
Mostly sunny, with a high near 29. Windy.
Click Map For Forecast
Point Forecast:
3 Miles W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
9:00 pm MST Dec 15, 2019
11pm MST Dec 15, 2019-6pm MST Dec 22, 2019
 
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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