Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

22°F

-6°C

Humidity 79%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 1 Jan 10:35 am MST
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • New Year's Day

    New Year's Day: Snow likely, mainly after 4pm.  Cloudy, with a high near 25. Breezy, with a west wind around 22 mph, with gusts as high as 34 mph.  Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 25 °F

    Snow Likely
    and Breezy

  • Tonight

    Tonight: Snow likely.  Cloudy, with a steady temperature around 21. Breezy, with a west wind 20 to 23 mph, with gusts as high as 40 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 21 °F

    Snow Likely
    and Breezy

  • Friday

    Friday: Snow likely, mainly before 5pm.  Cloudy, with a high near 20. Wind chill values as low as -1. Windy, with a west northwest wind 23 to 29 mph, with gusts as high as 46 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 20 °F

    Snow Likely
    and Windy

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 14. Wind chill values as low as zero. Windy, with a west wind 20 to 25 mph, with gusts as high as 44 mph.  New snow accumulation of less than one inch possible.

    Low: 14 °F

    Chance Snow
    and Windy

  • Saturday

    Saturday: Mostly sunny, with a high near 27. Breezy, with a west wind 14 to 18 mph, with gusts as high as 31 mph.

    High: 27 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17. Breezy.

    Low: 17 °F

    Mostly Cloudy
    and Breezy

  • Sunday

    Sunday: A 20 percent chance of snow.  Mostly sunny, with a high near 25. Windy.

    High: 25 °F

    Slight Chance
    Snow and
    Windy

  • Sunday Night

    Sunday Night: A slight chance of snow after 11pm.  Partly cloudy, with a low around 15. Breezy.

    Low: 15 °F

    Slight Chance
    Snow and
    Breezy

  • Monday

    Monday: A chance of snow.  Partly sunny, with a high near 23. Breezy.

    High: 23 °F

    Chance Snow
    and Breezy

Detailed Forecast

New Year's Day
Snow likely, mainly after 4pm. Cloudy, with a high near 25. Breezy, with a west wind around 22 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow likely. Cloudy, with a steady temperature around 21. Breezy, with a west wind 20 to 23 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow likely, mainly before 5pm. Cloudy, with a high near 20. Wind chill values as low as -1. Windy, with a west northwest wind 23 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 14. Wind chill values as low as zero. Windy, with a west wind 20 to 25 mph, with gusts as high as 44 mph. New snow accumulation of less than one inch possible.
Saturday
Mostly sunny, with a high near 27. Breezy, with a west wind 14 to 18 mph, with gusts as high as 31 mph.
Saturday Night
Mostly cloudy, with a low around 17. Breezy.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 25. Windy.
Sunday Night
A slight chance of snow after 11pm. Partly cloudy, with a low around 15. Breezy.
Monday
A chance of snow. Partly sunny, with a high near 23. Breezy.
Monday Night
A chance of snow. Mostly cloudy, with a low around 12. Breezy.
Tuesday
Snow likely. Mostly cloudy, with a high near 17. Breezy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 8. Breezy.
Wednesday
A chance of snow. Partly sunny, with a high near 16. 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)
3:26 am MST Jan 1, 2026
10am MST Jan 1, 2026-6pm MST Jan 7, 2026
 
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Additional Resources

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