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

MAIN BOULDER (MBRM8)

Lat: 45.45813°NLon: 110.19768°WElev: 5405.0ft.

NA

47°F

8°C

Humidity 94%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 15 Aug 05:39 AM MDT
Extended Forecast for

16 Miles SE Livingston MT

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 59. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 59 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm.  Cloudy, then gradually becoming partly cloudy, with a low around 46. West wind 5 to 9 mph becoming south southwest in the evening.  Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Increasing clouds, with a high near 63. South southwest wind 7 to 9 mph becoming west northwest in the afternoon.

    High: 63 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Mostly cloudy, with a low around 48. West wind around 8 mph becoming south after midnight.  Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 64. South southwest wind 8 to 11 mph becoming west in the afternoon.

    High: 64 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before midnight, then showers likely.  Low around 49. West wind around 10 mph becoming south after midnight.  Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 59. South southwest wind 9 to 11 mph becoming west northwest in the afternoon.  Chance of precipitation is 70%.

    High: 59 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 46. Northwest wind 6 to 8 mph becoming south after midnight.

    Low: 46 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 63. South wind 6 to 9 mph becoming west northwest in the afternoon.

    High: 63 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 59. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.
Tonight
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 46. West wind 5 to 9 mph becoming south southwest in the evening. Chance of precipitation is 70%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 63. South southwest wind 7 to 9 mph becoming west northwest in the afternoon.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 48. West wind around 8 mph becoming south after midnight. Chance of precipitation is 30%.
Monday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 64. South southwest wind 8 to 11 mph becoming west in the afternoon.
Monday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Low around 49. West wind around 10 mph becoming south after midnight. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 59. South southwest wind 9 to 11 mph becoming west northwest in the afternoon. Chance of precipitation is 70%.
Tuesday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46. Northwest wind 6 to 8 mph becoming south after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 63. South wind 6 to 9 mph becoming west northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 48. West northwest wind 6 to 8 mph becoming south after midnight.
Thursday
Sunny, with a high near 66. South wind around 9 mph becoming west northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 51. West northwest wind 6 to 9 mph becoming south after midnight.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 70. South wind 7 to 9 mph becoming west northwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Livingston MT
 45.49°N 110.32°W (Elev. 8399 ft)
12:58 am MDT Aug 15, 2026
6am MDT Aug 15, 2026-6pm MDT Aug 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database