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

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Partly Cloudy

55°F

13°C

Humidity 43%
Wind Speed W 8 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 17 Mar 05:20 PM MDT
Extended Forecast for

Helena MT

  • This Afternoon

    This Afternoon: A 20 percent chance of rain. Partly sunny, with a high near 55. West wind around 15 mph, with gusts as high as 32 mph.

    High: 55 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. West wind 9 to 14 mph becoming south after midnight. Winds could gust as high as 29 mph.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. West wind 11 to 21 mph, with gusts as high as 41 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44. South southwest wind 9 to 14 mph, with gusts as high as 33 mph.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. South southwest wind 9 to 17 mph, with gusts as high as 36 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. Southwest wind 11 to 15 mph, with gusts as high as 34 mph.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72. South southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. Southwest wind 8 to 18 mph, with gusts as high as 37 mph.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain. Partly sunny, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Partly sunny, with a high near 55. West wind around 15 mph, with gusts as high as 32 mph.
Tonight
Mostly cloudy, with a low around 43. West wind 9 to 14 mph becoming south after midnight. Winds could gust as high as 29 mph.
Wednesday
Mostly sunny, with a high near 63. West wind 11 to 21 mph, with gusts as high as 41 mph.
Wednesday Night
Mostly cloudy, with a low around 44. South southwest wind 9 to 14 mph, with gusts as high as 33 mph.
Thursday
Mostly sunny, with a high near 67. South southwest wind 9 to 17 mph, with gusts as high as 36 mph.
Thursday Night
Partly cloudy, with a low around 47. Southwest wind 11 to 15 mph, with gusts as high as 34 mph.
Friday
Mostly sunny, with a high near 72. South southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 43 mph.
Friday Night
Partly cloudy, with a low around 47. Southwest wind 8 to 18 mph, with gusts as high as 37 mph.
Saturday
A chance of rain. Partly sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 56.
Monday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 36.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.04°W (Elev. 4413 ft)
Last Update:
12:42 pm MDT Mar 17, 2026
Forecast Valid:
5pm MDT Mar 17, 2026-6pm MDT Mar 24, 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