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.

Partly Cloudy

19°F

-7°C

Humidity	67%
Wind Speed	WNW 8 MPH
Barometer	30.18 in (1022.01 mb)
Dewpoint	10°F (-12°C)
Visibility	10.00 mi
Wind Chill	9°F (-13°C)
Last update	11 Mar 08:05 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: 46 °F
Mostly Sunny
then Slight
Chance
Rain/Snow and
Breezy
Tonight
Low: 38 °F
Chance
Rain/Snow
then Chance
Rain and
Breezy
Thursday
High: 44 °F
Rain and
Breezy then
Rain/Snow and
Windy
Thursday Night
Low: 35 °F
Snow and
Breezy
Friday
High: 47 °F
Rain/Snow
Friday Night
Low: 33 °F
Rain/Snow
Saturday
High: 42 °F
Rain/Snow
then Snow
Saturday Night
Low: 16 °F
Snow Likely
Sunday
High: 37 °F
Chance Snow

Detailed Forecast

Today

A slight chance of snow after noon, mixing with rain after 4pm. Mostly sunny, with a high near 46. Breezy, with a west wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 20%.

Tonight

A chance of rain and snow before 7pm, then a chance of rain. Mostly cloudy, with a low around 38. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 50 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Thursday

Rain before noon, then rain and snow between noon and 3pm, then snow after 3pm. Steady temperature around 44. Windy, with a west southwest wind 24 to 32 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Thursday Night

Snow. Low around 35. Breezy, with a west wind 19 to 24 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 49 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Friday

Snow before 9am, then rain, possibly mixed with snow. High near 47. West wind 7 to 14 mph, with gusts as high as 29 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 33. West wind 5 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Saturday

Rain, possibly mixed with snow, becoming all snow after 9am. High near 42. West northwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 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 16. Northwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 32 mph.

Sunday

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

Sunday Night

A chance of snow. Mostly cloudy, with a low around 26.

Monday

A chance of rain and snow. Mostly cloudy, with a high near 53.

Monday Night

A chance of rain. Mostly cloudy, with a low around 39.

Tuesday

A slight chance of rain. Partly sunny, with a high near 65.