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

Helmville MT-200 MP 53.3 (MTHLM)

Lat: 46.96826°NLon: 112.97487°WElev: 4199.0ft.

unknown precip

27°F

-3°C

Humidity	88%
Wind Speed	W 2 MPH
Barometer	NA
Dewpoint	24°F (-4°C)
Visibility	NA
Last update	27 Dec 03:30 AM MST

More Information:

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

Extended Forecast for

10 Miles NNE Ovando MT

Wind Advisory until December 27, 05:00am

Winter Weather Advisory December 27, 05:00am until December 27, 08:00pm

Click here for hazard details and duration

Wind Advisory

Winter Weather Advisory

Wind Advisory until December 27, 05:00am
NOW until 5:00am Sat
Wind Advisory
Overnight
Low: 12 °F
Chance Snow
and Areas
Blowing Snow
Saturday
High: 15 °F⇓
Heavy Snow
and Areas
Blowing Snow
Saturday Night
Low: -1 °F
Slight Chance
Snow then
Partly Cloudy
Sunday
High: 11 °F
Mostly Sunny
Sunday Night
Low: 8 °F
Partly Cloudy
Monday
High: 20 °F
Partly Sunny
Monday Night
Low: 15 °F
Mostly Cloudy
Tuesday
High: 25 °F
Partly Sunny

Detailed Forecast

Overnight

A 30 percent chance of snow. Areas of blowing snow. Mostly cloudy, with a low around 12. Wind chill values as low as -4. Breezy, with a west southwest wind around 26 mph, with gusts as high as 45 mph. Total nighttime snow accumulation of 3 to 7 inches possible.

Saturday

Snow, mainly before 3pm. The snow could be heavy at times. Areas of blowing snow before 2pm. Temperature falling to around 6 by 5pm. Wind chill values as low as -9. Breezy, with a west wind 21 to 26 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Saturday Night

A 10 percent chance of snow before 7pm. Partly cloudy, with a low around -1. Wind chill values as low as -15. West wind 8 to 10 mph.

Sunday

Mostly sunny, with a high near 11. Wind chill values as low as -13. West wind around 8 mph.

Sunday Night

Partly cloudy, with a low around 8. West wind around 8 mph.

Monday

Partly sunny, with a high near 20.

Monday Night

Mostly cloudy, with a low around 15.

Tuesday

Partly sunny, with a high near 25.