Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Overcast

61°F

16°C

Humidity 72%
Wind Speed N 5 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Aug 10:35 AM MDT
Extended Forecast for

8 Miles WNW Helena MT

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm.  Patchy smoke after 5pm. Mostly sunny, with a high near 74. Calm wind becoming east around 6 mph in the afternoon.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 5am.  Patchy smoke before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 52. East northeast wind around 6 mph becoming light and variable  after midnight.  Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers between 2pm and 3pm, then a slight chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon.  Chance of precipitation is 20%.

    High: 79 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight.  Mostly cloudy, with a low around 53. West southwest wind 3 to 6 mph.  Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 79 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 56. West southwest wind 5 to 9 mph.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 76. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 76 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 52. West southwest wind 5 to 9 mph.

    Low: 52 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Patchy smoke after 5pm. Mostly sunny, with a high near 74. Calm wind becoming east around 6 mph in the afternoon.
Tonight
Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 5am. Patchy smoke before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 52. East northeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 70%.
Sunday
A slight chance of showers between 2pm and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 53. West southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Monday
Partly sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon.
Monday Night
A 40 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 56. West southwest wind 5 to 9 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52. West southwest wind 5 to 9 mph.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Helena MT
 46.63°N 112.18°W (Elev. 4980 ft)
10:36 am MDT Aug 15, 2026
10am MDT Aug 15, 2026-6pm MDT Aug 21, 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