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 Storm Warning until October 12, 06:00 AM MDT

Current conditions at

HELENA (HRWM8)

Lat: 46.73167°NLon: 112.01917°WElev: 3800.0ft.

34°F

1°C

Humidity	81%
Wind Speed	NNE 15 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Wind Chill	24°F (-4°C)
Last update	11 Oct 02:53 PM MDT

More Information:

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

Extended Forecast for

9 Miles NNW Helena MT

Winter Storm Warning October 11, 03:19pm until October 12, 06:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning October 11, 03:19pm until October 12, 06:00am
NOW until 6:00am Mon
Winter Storm Warning
This Afternoon
High: 32 °F
Snow and
Patchy
Blowing Snow
Tonight
Low: 28 °F
Snow and
Patchy
Blowing Snow
Columbus Day
High: 35 °F
Decreasing
Clouds
Monday Night
Low: 20 °F
Mostly Cloudy
Tuesday
High: 41 °F
Mostly Sunny
Tuesday Night
Low: 21 °F
Mostly Clear
Wednesday
High: 49 °F
Sunny
Wednesday Night
Low: 27 °F
Mostly Clear

Detailed Forecast

This Afternoon

Snow. Patchy blowing snow. High near 32. Breezy, with a north wind around 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 2 to 4 inches possible.

Tonight

Snow, mainly before 3am. Patchy blowing snow. Steady temperature around 28. Blustery, with a north wind 20 to 25 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Columbus Day

Cloudy, then gradually becoming mostly sunny, with a high near 35. North northwest wind 6 to 11 mph becoming light and variable in the afternoon.

Monday Night

Mostly cloudy, with a low around 20. Light south wind.

Tuesday

Mostly sunny, with a high near 41. Calm wind.

Tuesday Night

Mostly clear, with a low around 21. Calm wind becoming southwest around 5 mph.

Wednesday

Sunny, with a high near 49. Calm wind becoming south around 5 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 27. Calm wind becoming southwest 5 to 9 mph in the evening.