Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Hazardous Weather Conditions

High Wind Warning in effect from March 12, 12:00 AM MDT until March 12, 06:00 PM MDT

Current conditions at

Helena Regional Airport (KHLN)

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

Mostly Cloudy

21°F

-6°C

Humidity	62%
Wind Speed	WSW 3 MPH
Barometer	30.19 in (1022.35 mb)
Dewpoint	10°F (-12°C)
Visibility	10.00 mi
Last update	11 Mar 08:30 AM MDT

More Information:

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

Extended Forecast for

Helena MT

High Wind Warning March 12, 12:00am until March 12, 06:00pm

Click here for hazard details and duration

High Wind Warning

Today
High: 43 °F
Mostly Sunny
then Slight
Chance Snow
and Breezy
Tonight
Low: 38 °F
Chance
Rain/Snow and
Windy
Thursday
High: 41 °F
Windy.
Rain/Snow
then Snow
Thursday Night
Low: 34 °F
Snow and
Breezy
Friday
High: 44 °F
Snow then
Rain/Snow
Friday Night
Low: 34 °F
Rain/Snow
Saturday
High: 40 °F
Snow
Saturday Night
Low: 18 °F
Snow Likely
Sunday
High: 35 °F
Chance Snow

Detailed Forecast

Today

A 20 percent chance of snow after noon. Mostly sunny, with a high near 43. Breezy, with a west wind 11 to 16 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 46 mph.

Tonight

A chance of snow before 10pm, then a chance of rain and snow between 10pm and 3am, then a chance of rain after 3am. Mostly cloudy, with a low around 38. Windy, with a west southwest wind 23 to 30 mph, with gusts as high as 60 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Thursday

Rain and snow, becoming all snow after noon. Steady temperature around 41. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 65 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Snow. Low around 34. Breezy, with a west wind 23 to 28 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Friday

Snow before 3pm, then rain, possibly mixed with snow. High near 44. West wind 10 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Friday Night

Rain and snow. Low around 34. West wind 6 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Saturday

Snow. High near 40. West northwest wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

Snow likely, mainly before midnight. Mostly cloudy, with a low around 18. Northwest wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 37 mph.

Sunday

A chance of snow. Mostly cloudy, with a high near 35.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 29.

Monday

Rain and snow likely. Mostly cloudy, with a high near 51.

Monday Night

A chance of rain. Mostly cloudy, with a low around 41.

Tuesday

A slight chance of rain. Partly sunny, with a high near 62.