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

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Mostly Cloudy

47°F

8°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 18 Nov 12:53 PM MST
Extended Forecast for

Helena MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 54. Light and variable wind.

    High: 54 °F

    Partly Sunny

  • Tonight

    Tonight: A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 33. Light west wind.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of snow before 11am. Mostly sunny, with a high near 45. Light and variable wind.

    High: 45 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. Light and variable wind.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 50. Light south wind.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. Calm wind becoming south southwest 5 to 7 mph in the evening.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52. West southwest wind 6 to 8 mph.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 54. Light and variable wind.
Tonight
A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 33. Light west wind.
Wednesday
A 20 percent chance of snow before 11am. Mostly sunny, with a high near 45. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 28. Light and variable wind.
Thursday
Sunny, with a high near 50. Light south wind.
Thursday Night
Mostly clear, with a low around 31. Calm wind becoming south southwest 5 to 7 mph in the evening.
Friday
Sunny, with a high near 52. West southwest wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 32. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 35.
Sunday
A chance of rain and snow. Partly sunny, with a high near 50.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Monday
A chance of rain and snow. Partly sunny, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.04°W (Elev. 4413 ft)
Last Update:
8:27 am MST Nov 18, 2025
Forecast Valid:
1pm MST Nov 18, 2025-6pm MST Nov 24, 2025
 
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