Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

55°F

13°C

Humidity 83%
Wind Speed N 0 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 16 Aug 07:53 AM MDT
Extended Forecast for

Helena MT

  • Today

    Today: Mostly sunny, with a high near 82. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm.  Partly cloudy, with a low around 51. Northwest wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 84. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55. West wind around 6 mph becoming calm  in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. Northwest wind 6 to 8 mph becoming south southwest after midnight.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 84. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. West northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 82. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Partly cloudy, with a low around 51. Northwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 84. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 55. West wind around 6 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 52. Northwest wind 6 to 8 mph becoming south southwest after midnight.
Wednesday
Sunny, with a high near 84. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 52. West northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A slight chance of showers. Mostly sunny, with a high near 88.
Friday Night
A chance of showers. Mostly cloudy, with a low around 55.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.61°N 111.99°W (Elev. 3878 ft)
6:41 am MDT Aug 16, 2026
8am MDT Aug 16, 2026-6pm MDT Aug 22, 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