Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Hazardous Weather Conditions

Winter Weather Advisory until October 12, 06:00 AM MDT

Current conditions at

Helena Regional Airport (KHLN)

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

light snow,mist

31°F

-1°C

Humidity	96%
Wind Speed	W 8 MPH
Barometer	29.96 in (1014.56 mb)
Dewpoint	30°F (-1°C)
Visibility	1.25 mi
Wind Chill	24°F (-4°C)
Last update	11 Oct 07:19 AM MDT

More Information:

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

Extended Forecast for

Helena MT

Winter Weather Advisory October 11, 07:37am until October 12, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory October 11, 07:37am until October 12, 06:00am
NOW until 6:00am Mon
Winter Weather Advisory
Today
High: 32 °F
Snow then
Rain/Snow
Tonight
Low: 24 °F
Rain/Snow
then Snow
Columbus Day
High: 39 °F
Snow Likely
then Partly
Sunny
Monday Night
Low: 22 °F
Partly Cloudy
Tuesday
High: 45 °F
Mostly Sunny
Tuesday Night
Low: 22 °F
Mostly Clear
Wednesday
High: 50 °F
Sunny
Wednesday Night
Low: 27 °F
Mostly Clear

Detailed Forecast

Today

Snow before 5pm, then snow, possibly mixed with rain. High near 32. North northwest wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

Snow, possibly mixed with rain, becoming all snow after 10pm. Low around 24. West northwest wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Columbus Day

Snow likely, mainly before 7am. Mostly cloudy, with a high near 39. West wind 3 to 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Monday Night

Partly cloudy, with a low around 22. Light south southeast wind.

Tuesday

Mostly sunny, with a high near 45. Light and variable wind.

Tuesday Night

Mostly clear, with a low around 22. Calm wind becoming southwest around 5 mph.

Wednesday

Sunny, with a high near 50. Calm wind becoming southwest around 5 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 27. Light southwest wind increasing to 5 to 9 mph.

Thursday

Mostly sunny, with a high near 50.