Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Partly Cloudy

37°F

3°C

Humidity	63%
Wind Speed	SW 6 mph
Barometer	29.87 in
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Wind Chill	32°F (0°C)
Last update	27 Dec 4:55 am MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

Winter Weather Advisory December 27, 11:00am until December 28, 11:00am

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 15 °F
Chance Snow
and Patchy
Blowing Snow
Saturday
High: 20 °F
Snow Likely
and Patchy
Blowing Snow
Saturday Night
Low: -4 °F
Heavy Snow
and Blustery
Sunday
High: -1 °F
Windy. Snow
then Chance
Snow
Sunday Night
Low: -5 °F
Mostly Clear
and Breezy
Monday
High: 13 °F
Sunny and
Breezy then
Sunny
Monday Night
Low: 5 °F
Mostly Clear
and Breezy
Tuesday
High: 21 °F
Sunny and
Breezy then
Sunny
Tuesday Night
Low: 10 °F
Mostly Clear
and Breezy

Detailed Forecast

Overnight

A 40 percent chance of snow. Patchy blowing snow. Mostly cloudy, with a low around 15. Wind chill values as low as -1. Breezy, with a west wind around 23 mph, with gusts as high as 44 mph. Total nighttime snow accumulation of less than a half inch possible.

Saturday

Snow likely, mainly after 2pm. Patchy blowing snow. Mostly cloudy, with a high near 20. Wind chill values as low as -3. Windy, with a west wind 21 to 28 mph, with gusts as high as 47 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Saturday Night

Snow. The snow could be heavy at times. Low around -4. Wind chill values as low as -19. Blustery, with a west northwest wind 14 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Sunday

Snow, mainly before 11am. High near -1. Wind chill values as low as -29. Windy, with a west northwest wind 18 to 26 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Sunday Night

Mostly clear, with a low around -5. Breezy, with a west wind 16 to 21 mph, with gusts as high as 33 mph.

Monday

Sunny, with a high near 13. Breezy.

Monday Night

Mostly clear, with a low around 5. Breezy.

Tuesday

Sunny, with a high near 21. Breezy.

Tuesday Night

Mostly clear, with a low around 10. Breezy.

Wednesday

Mostly sunny, with a high near 22. Breezy.