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

36°F

2°C

Humidity 29%
Wind Speed WNW 17 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 10 Mar 02:35 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 37. West wind 14 to 17 mph, with gusts as high as 31 mph. Little or no snow accumulation expected.

    High: 37 °F

    Chance Snow

  • Tonight

    Tonight: A 20 percent chance of snow before 7pm. Mostly clear, with a low around 19. West wind 6 to 16 mph, with gusts as high as 32 mph.

    Low: 19 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of snow after noon, mixing with rain after 5pm. Mostly sunny, with a high near 46. Breezy, with a west wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 40 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 3am, then a chance of rain. Mostly cloudy, with a low around 38. Breezy, with a southwest wind 15 to 24 mph, with gusts as high as 55 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 38 °F

    Chance
    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Rain before noon, then rain and snow between noon and 3pm, then snow after 3pm. High near 49. Windy, with a west southwest wind 26 to 32 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 49 °F

    Rain and
    Breezy then
    Rain/Snow and
    Windy

  • Thursday Night

    Thursday Night: Snow before 3am, then rain, possibly mixed with snow. Low around 33. Breezy, with a west wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Snow and
    Breezy then
    Rain/Snow

  • Friday

    Friday: Rain, possibly mixed with snow. High near 48. West wind 8 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 48 °F

    Rain/Snow

  • Friday Night

    Friday Night: Rain before 9pm, then rain and snow. Cloudy, with a low around 30. West northwest wind 6 to 14 mph, with gusts as high as 31 mph.

    Low: 30 °F

    Rain/Snow

  • Saturday

    Saturday: Rain and snow, becoming all snow after 9am. Cloudy, with a high near 40.

    High: 40 °F

    Rain/Snow
    then Snow

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly before 5pm. Partly sunny, with a high near 37. West wind 14 to 17 mph, with gusts as high as 31 mph. Little or no snow accumulation expected.
Tonight
A 20 percent chance of snow before 7pm. Mostly clear, with a low around 19. West wind 6 to 16 mph, with gusts as high as 32 mph.
Wednesday
A slight chance of snow after noon, mixing with rain after 5pm. Mostly sunny, with a high near 46. Breezy, with a west wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of rain and snow before 3am, then a chance of rain. Mostly cloudy, with a low around 38. Breezy, with a southwest wind 15 to 24 mph, with gusts as high as 55 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. High near 49. Windy, with a west southwest wind 26 to 32 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow before 3am, then rain, possibly mixed with snow. Low around 33. Breezy, with a west wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Rain, possibly mixed with snow. High near 48. West wind 8 to 17 mph, with gusts as high as 31 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 30. West northwest wind 6 to 14 mph, with gusts as high as 31 mph.
Saturday
Rain and snow, becoming all snow after 9am. Cloudy, with a high near 40.
Saturday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 16.
Sunday
A slight chance of snow. Partly sunny, 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 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.59°N 111.98°W (Elev. 3996 ft)
Last Update:
2:17 pm MDT Mar 10, 2026
Forecast Valid:
2pm MDT Mar 10, 2026-6pm MDT Mar 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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