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 >

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
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

    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.

    High: 43 °F

    Mostly Sunny
    then Slight
    Chance Snow
    and Breezy

  • Tonight

    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.

    Low: 38 °F

    Chance
    Rain/Snow and
    Windy

  • Thursday

    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.

    High: 41 °F

    Windy.
    Rain/Snow
    then Snow

  • Thursday Night

    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.

    Low: 34 °F

    Snow and
    Breezy

  • Friday

    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.

    High: 44 °F

    Snow then
    Rain/Snow

  • Friday Night

    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.

    Low: 34 °F

    Rain/Snow

  • Saturday

    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.

    High: 40 °F

    Snow

  • Saturday Night

    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.

    Low: 18 °F

    Snow Likely

  • Sunday

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

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.07°W (Elev. 4764 ft)
4:52 am MDT Mar 11, 2026
8am MDT Mar 11, 2026-6pm MDT Mar 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

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