Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Current conditions at

Comertown Turn-Off MT-5 MP 13.4 (MTCOM)

Lat: 48.81°NLon: 104.2529°WElev: 2359.0ft.

11°F

-12°C

Humidity	76%
Wind Speed	SE 12 MPH
Barometer	NA
Dewpoint	5°F (-15°C)
Visibility	NA
Wind Chill	-4°F (-20°C)
Last update	30 Jan 12:01 AM MST

More Information:

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

Extended Forecast for

8 Miles SSW Westby MT

Overnight
Low: -3 °F
Slight Chance
Snow
Friday
High: 12 °F
Becoming
Sunny
Friday Night
Low: 11 °F⇑
Chance Snow
then Chance
Wintry Mix
Saturday
High: 37 °F
Breezy.
Rain/Freezing
Rain Likely
then Slight
Chance Rain
Saturday Night
Low: 21 °F
Mostly Cloudy
and Blustery
then Mostly
Cloudy
Sunday
High: 27 °F
Mostly Cloudy
Sunday Night
Low: 16 °F
Mostly Cloudy
Monday
High: 31 °F
Mostly Cloudy
Monday Night
Low: 16 °F
Slight Chance
Snow

Detailed Forecast

Overnight

A 20 percent chance of snow before 1am. Cloudy, with a low around -3. Wind chill values between -10 and -15. East wind around 8 mph.

Friday

Mostly cloudy through mid morning, then gradual clearing, with a high near 12. Wind chill values between -5 and -15. South southeast wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

Friday Night

A chance of snow after 11pm, mixing with freezing rain after 2am. Increasing clouds, with a temperature rising to around 23 by 5am. Wind chill values between -5 and 5. South wind 18 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

Saturday

Freezing rain likely before 10am, then rain likely. Mostly cloudy, with a high near 37. Breezy, with a south wind 15 to 25 mph becoming west northwest in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 60%.

Saturday Night

Mostly cloudy, with a low around 21. Blustery, with a west northwest wind 14 to 23 mph, with gusts as high as 33 mph.

Sunday

Mostly cloudy, with a high near 27. North northwest wind 6 to 10 mph.

Sunday Night

Mostly cloudy, with a low around 16. Southeast wind 6 to 10 mph.

Monday

Mostly cloudy, with a high near 31. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.

Monday Night

A 20 percent chance of snow. Mostly cloudy, with a low around 16. Northwest wind 11 to 14 mph, with gusts as high as 21 mph.

Tuesday

Partly sunny, with a high near 30. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.