National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Significant Severe Weather in the Upper Midwest; Blizzard Conditions in the Cascades; Heavy Rain and Thunderstorms in Hawaii

Significant severe thunderstorms, including the risk for strong to intense tornadoes, are expected across the Upper Midwest this afternoon and evening. An atmospheric river will bring blizzard conditions to the northern Cascades. A powerful Kona storm is expected to impact Hawaii today into Saturday, bringing heavy rainfall and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Helena Regional Airport (KHLN)

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

Overcast

35°F

2°C

Humidity 29%
Wind Speed NW 21 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 10 Mar 01:53 PM 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

  • This Afternoon

    This Afternoon: A 30 percent chance of snow, mainly before 5pm. Partly sunny, with a high near 38. West wind 14 to 17 mph, with gusts as high as 30 mph. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow

  • Tonight

    Tonight: A 20 percent chance of snow before 7pm. Partly cloudy, with a low around 18. West wind 6 to 15 mph becoming south after midnight. Winds could gust as high as 29 mph.

    Low: 18 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of snow after noon, mixing with rain after 4pm. Mostly sunny, with a high near 46. Breezy, with a south wind 6 to 11 mph becoming west 18 to 23 mph in the morning. Winds could gust as high as 38 mph. Chance of precipitation is 20%.

    High: 46 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then a chance of rain. Mostly cloudy, with a low around 36. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 49 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow
    then Chance
    Rain and
    Breezy

  • Thursday

    Thursday: Rain before noon, then rain, possibly mixed with snow. High near 50. Windy, with a west southwest wind 23 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 50 °F

    Rain and
    Breezy then
    Rain/Snow and
    Windy

  • Thursday Night

    Thursday Night: Rain, possibly mixed with snow before 9pm, then snow between 9pm and 3am, then rain, possibly mixed with snow after 3am. Low around 33. Breezy, with a west wind 17 to 22 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow and
    Breezy

  • Friday

    Friday: Rain, possibly mixed with snow. High near 49. West wind 7 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 49 °F

    Rain/Snow

  • Friday Night

    Friday Night: Rain before 9pm, then rain and snow. Cloudy, with a low around 28. West northwest wind 6 to 14 mph, with gusts as high as 28 mph.

    Low: 28 °F

    Rain/Snow

  • Saturday

    Saturday: Rain and snow, becoming all snow after noon. Cloudy, with a high near 41.

    High: 41 °F

    Rain/Snow
    then Snow

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly before 5pm. Partly sunny, with a high near 38. West wind 14 to 17 mph, with gusts as high as 30 mph. Little or no snow accumulation expected.
Tonight
A 20 percent chance of snow before 7pm. Partly cloudy, with a low around 18. West wind 6 to 15 mph becoming south after midnight. Winds could gust as high as 29 mph.
Wednesday
A slight chance of snow after noon, mixing with rain after 4pm. Mostly sunny, with a high near 46. Breezy, with a south wind 6 to 11 mph becoming west 18 to 23 mph in the morning. Winds could gust as high as 38 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of rain and snow before midnight, then a chance of rain. Mostly cloudy, with a low around 36. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 49 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday
Rain before noon, then rain, possibly mixed with snow. High near 50. Windy, with a west southwest wind 23 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Rain, possibly mixed with snow before 9pm, then snow between 9pm and 3am, then rain, possibly mixed with snow after 3am. Low around 33. Breezy, with a west wind 17 to 22 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Rain, possibly mixed with snow. High near 49. West wind 7 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
Rain before 9pm, then rain and snow. Cloudy, with a low around 28. West northwest wind 6 to 14 mph, with gusts as high as 28 mph.
Saturday
Rain and snow, becoming all snow after noon. Cloudy, with a high near 41.
Saturday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 14.
Sunday
A slight chance of snow. Partly sunny, with a high near 39.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 25.
Monday
A chance of rain and snow. Cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.61°N 111.96°W (Elev. 3796 ft)
Last Update:
1:26 pm MDT Mar 10, 2026
Forecast Valid:
2pm MDT Mar 10, 2026-6pm MDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation