Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Current conditions at

HELENA (HRWM8)

Lat: 46.73167°NLon: 112.01917°WElev: 3800.0ft.

NA

93°F

34°C

Humidity 22%
Wind Speed SSE 9 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Heat Index90°F (32°C)
Last update 26 Jul 05:53 PM MDT
Extended Forecast for

3 Miles SW Marysville MT

  • Tonight

    Tonight: Patchy smoke. Mostly clear, with a low around 56. West northwest wind 8 to 10 mph.

    Low: 56 °F

    Patchy Smoke

  • Monday

    Monday: Areas of smoke. Sunny, with a high near 78. North northwest wind 5 to 8 mph becoming light and variable.

    High: 78 °F

    Areas Smoke

  • Monday Night

    Monday Night: Areas of smoke. Mostly clear, with a low around 55. West wind around 9 mph.

    Low: 55 °F

    Areas Smoke

  • Tuesday

    Tuesday: Areas of smoke before 7am. Sunny, with a high near 77. West wind 5 to 9 mph.

    High: 77 °F

    Areas Smoke
    then Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 55. West wind 9 to 11 mph.

    Low: 55 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76. West wind 5 to 10 mph becoming northeast in the afternoon.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West wind around 9 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. West southwest wind 5 to 9 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy smoke. Mostly clear, with a low around 56. West northwest wind 8 to 10 mph.
Monday
Areas of smoke. Sunny, with a high near 78. North northwest wind 5 to 8 mph becoming light and variable.
Monday Night
Areas of smoke. Mostly clear, with a low around 55. West wind around 9 mph.
Tuesday
Areas of smoke before 7am. Sunny, with a high near 77. West wind 5 to 9 mph.
Tuesday Night
Clear, with a low around 55. West wind 9 to 11 mph.
Wednesday
Sunny, with a high near 76. West wind 5 to 10 mph becoming northeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. West wind around 9 mph.
Thursday
Sunny, with a high near 78. West southwest wind 5 to 9 mph.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 55. Breezy.
Sunday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Marysville MT
 46.73°N 112.35°W (Elev. 6768 ft)
3:52 pm MDT Jul 26, 2026
6pm MDT Jul 26, 2026-6pm MDT Aug 2, 2026
 
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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