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 >

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

41°F

5°C

Humidity	35%
Wind Speed	SSW 9 MPH
Barometer	29.47 in (997.97 mb)
Dewpoint	16°F (-9°C)
Visibility	10.00 mi
Wind Chill	35°F (2°C)
Last update	27 Dec 12:20 AM MST

More Information:

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

Extended Forecast for

Helena MT

Overnight
Low: 23 °F
Chance Snow
Saturday
High: 25 °F⇓
Chance Snow
Saturday Night
Low: -1 °F
Decreasing
Clouds
Sunday
High: 22 °F
Sunny
Sunday Night
Low: 11 °F
Mostly Clear
Monday
High: 35 °F
Mostly Sunny
Monday Night
Low: 23 °F
Mostly Cloudy
Tuesday
High: 42 °F
Partly Sunny
Tuesday Night
Low: 25 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of snow, mainly after 2am. Mostly cloudy, with a low around 23. South wind around 15 mph becoming west southwest. Winds could gust as high as 23 mph. Total nighttime snow accumulation of less than a half inch possible.

Saturday

A 50 percent chance of snow, mainly before 4pm. Mostly cloudy, with a temperature falling to around 11 by 5pm. Wind chill values as low as -10. North northwest wind 11 to 18 mph, with gusts as high as 26 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, then gradually becoming clear, with a low around -1. West northwest wind 5 to 9 mph becoming light and variable after midnight.

Sunday

Sunny, with a high near 22. Light and variable wind becoming west 5 to 8 mph in the morning.

Sunday Night

Mostly clear, with a low around 11. Southwest wind around 8 mph.

Monday

Mostly sunny, with a high near 35. South southwest wind 3 to 6 mph.

Monday Night

Mostly cloudy, with a low around 23. Southwest wind around 7 mph.

Tuesday

Partly sunny, with a high near 42. South southwest wind around 5 mph becoming calm in the morning.