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

Record Heat Remains in Place This Week; Severe Thunderstorms Possible Thursday

Record warmth will persist across portions of California, the Southwest U.S., the central Great Basin and return back to areas of the central/southern Plains and mid-lower Mississippi Valley this week. Over 200 new record high temperatures are forecast. Severe thunderstorms are being outlooked on Thursday over the Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

57°F

14°C

Humidity 14%
Wind Speed E 8 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 23 Mar 03:05 PM MDT
Extended Forecast for

Helena MT

Fire Weather Watch March 25, 12:00pm until March 25, 09:00pm
Click here for hazard details and duration
Fire Weather Watch

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. North northwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 66. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 66 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 45. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 45 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain before noon. Partly sunny, with a high near 62. South southwest wind 6 to 11 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 62 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain before midnight, then a chance of rain and snow between midnight and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 30. West northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Thursday

    Thursday: A 20 percent chance of snow showers before noon. Mostly sunny, with a high near 46. West northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 46 °F

    Slight Chance
    Snow Showers
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22. West northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 32 mph.

    Low: 22 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 66. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 45. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Wednesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 62. South southwest wind 6 to 11 mph becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 37 mph.
Wednesday Night
A slight chance of rain before midnight, then a chance of rain and snow between midnight and 3am, then a chance of snow after 3am. Mostly cloudy, with a low around 30. West northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday
A 20 percent chance of snow showers before noon. Mostly sunny, with a high near 46. West northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 34 mph.
Thursday Night
Mostly clear, with a low around 22. West northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 32 mph.
Friday
Sunny, with a high near 55. Calm wind becoming east southeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 27.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 38.
Monday
A slight chance of rain. Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.59°N 111.98°W (Elev. 3996 ft)
Last Update:
1:31 pm MDT Mar 23, 2026
Forecast Valid:
3pm MDT Mar 23, 2026-6pm MDT Mar 30, 2026
 
Forecast Discussion
 
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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