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

23°F

-5°C

Humidity	56%
Wind Speed	W 4 MPH
Barometer	30.19 in (1022.35 mb)
Dewpoint	10°F (-12°C)
Visibility	10.00 mi
Wind Chill	18°F (-8°C)
Last update	11 Mar 08:53 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: 44 °F
Mostly Sunny
then Slight
Chance Snow
and Breezy
Tonight
Low: 42 °F
Chance
Rain/Snow and
Breezy
Thursday
High: 43 °F
Windy.
Rain/Snow
then Snow
Thursday Night
Low: 35 °F
Snow and
Breezy
Friday
High: 46 °F
Snow then
Rain/Snow
Friday Night
Low: 34 °F
Rain/Snow
Saturday
High: 41 °F
Rain/Snow
then Snow
Saturday Night
Low: 18 °F
Snow Likely
Sunday
High: 37 °F
Chance Snow

Detailed Forecast

Today

A 20 percent chance of snow after noon. Mostly sunny, with a high near 44. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 46 mph.

Tonight

A chance of rain and snow before 3am, then a chance of rain between 3am and 5am, then a chance of rain and snow after 5am. Mostly cloudy, with a steady temperature around 42. Breezy, with a west southwest wind 22 to 29 mph, with gusts as high as 60 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow, becoming all snow after noon. Steady temperature around 43. Windy, with a west southwest wind 30 to 32 mph, with gusts as high as 65 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Snow. Low around 35. 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 a half inch possible.

Friday

Snow before noon, then rain, possibly mixed with snow. High near 46. West wind 9 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Friday Night

Rain, possibly mixed with snow. Low around 34. West wind 6 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Saturday

Rain and snow, becoming all snow after 9am. High near 41. West northwest wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Saturday Night

Snow likely, mainly before midnight. Mostly cloudy, with a low around 18. Northwest wind 13 to 18 mph becoming light west after midnight. Winds could gust as high as 36 mph.

Sunday

A chance of snow. Mostly cloudy, with a high near 37.

Sunday Night

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

Monday

A chance of rain and snow. Mostly cloudy, with a high near 52.

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 63.