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

Winter Weather Advisory until December 27, 02:00 PM MST

Current conditions at

HELENA VALLEY (HVMT)

Lat: 46.67917°NLon: 111.98333°WElev: 3673.0ft.

36°F

2°C

Humidity	47%
Wind Speed	SW 1 MPH
Barometer	NA
Dewpoint	18°F (-8°C)
Visibility	NA
Last update	27 Dec 03:00 AM MST

More Information:

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

Extended Forecast for

11 Miles NE East Helena MT

Winter Weather Advisory December 27, 03:40am until December 27, 02:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 27, 03:40am until December 27, 02:00pm
NOW until 2:00pm Sat
Winter Weather Advisory
Overnight
Low: 23 °F
Snow Likely
Saturday
High: 25 °F⇓
Snow Likely
Saturday Night
Low: 1 °F
Decreasing
Clouds
Sunday
High: 22 °F
Sunny
Sunday Night
Low: 15 °F
Mostly Clear
Monday
High: 35 °F
Mostly Sunny
Monday Night
Low: 25 °F
Mostly Cloudy
Tuesday
High: 41 °F
Partly Sunny

Detailed Forecast

Overnight

Snow likely. Cloudy, with a low around 23. East southeast wind around 17 mph becoming north northeast. Winds could gust as high as 24 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

Saturday

Snow likely, mainly before 1pm. Mostly cloudy, with a temperature falling to around 8 by 5pm. Wind chill values as low as -5. North northwest wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around 1. Wind chill values as low as -10. Northwest wind 5 to 9 mph becoming southeast after midnight.

Sunday

Sunny, with a high near 22. Wind chill values as low as -10. Southeast wind 6 to 8 mph becoming south southwest in the afternoon.

Sunday Night

Mostly clear, with a low around 15. South wind around 8 mph.

Monday

Mostly sunny, with a high near 35. South southwest wind around 8 mph.

Monday Night

Mostly cloudy, with a low around 25. South wind around 7 mph.

Tuesday

Partly sunny, with a high near 41. South southeast wind around 7 mph.

Tuesday Night

Mostly cloudy, with a low around 29.