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.

Overcast

32°F

0°C

Humidity	86%
Wind Speed	W 6 MPH
Barometer	29.95 in (1014.22 mb)
Dewpoint	28°F (-2°C)
Visibility	7.00 mi
Wind Chill	26°F (-3°C)
Last update	11 Oct 09:15 AM MDT

More Information:

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

Extended Forecast for

4 Miles W Helena MT

Winter Weather Advisory October 11, 09:40am until October 12, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory October 11, 09:40am until October 12, 06:00am
NOW until 6:00am Mon
Winter Weather Advisory
Today
High: 33 °F
Snow Likely
then Snow
Tonight
Low: 28 °F
Snow
Columbus Day
High: 40 °F
Chance Snow
then Partly
Sunny
Monday Night
Low: 24 °F
Partly Cloudy
Tuesday
High: 47 °F
Sunny
Tuesday Night
Low: 28 °F
Mostly Clear
Wednesday
High: 51 °F
Sunny
Wednesday Night
Low: 33 °F
Mostly Clear

Detailed Forecast

Today

Snow. High near 33. North wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 2 to 4 inches possible.

Tonight

Snow. Low around 28. North wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 6 inches possible.

Columbus Day

A 50 percent chance of snow before 8am. Mostly cloudy, with a high near 40. West northwest wind around 5 mph becoming light and variable in the morning. New snow accumulation of less than a half inch possible.

Monday Night

Partly cloudy, with a low around 24. Calm wind becoming west southwest around 5 mph in the evening.

Tuesday

Sunny, with a high near 47. Light west southwest wind.

Tuesday Night

Mostly clear, with a low around 28. Calm wind becoming southwest around 6 mph in the evening.

Wednesday

Sunny, with a high near 51. Calm wind becoming west southwest around 6 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 33. West southwest wind 5 to 10 mph.

Thursday

Mostly sunny, with a high near 51.