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

ROCKY BOY (ROCM8)

Lat: 48.17478°NLon: 109.64728°WElev: 4700.0ft.

NA

64°F

18°C

Humidity NA
Wind Speed NA NA MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

19 Miles S Lloyd MT

  • Tonight

    Tonight: A 40 percent chance of showers, mainly after 1am.  Mostly cloudy, with a low around 54. East southeast wind 3 to 6 mph.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 4pm.  Mostly sunny, with a high near 77. Calm wind becoming west southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers 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, then a slight chance of showers and thunderstorms after midnight.  Patchy smoke before 10pm, then patchy smoke after 5am. Mostly cloudy, with a low around 55. Northwest wind 3 to 6 mph.  Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Monday

    Monday: Patchy smoke before 7am. Partly sunny, with a high near 75. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 75 °F

    Patchy Smoke
    then Partly
    Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight, then a chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 55. West northwest wind 5 to 7 mph becoming light and variable  after midnight.  Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after noon.  Partly sunny, with a high near 73. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 73 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 53. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 53 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 54. East southeast wind 3 to 6 mph.
Sunday
A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 77. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight, then a slight chance of showers and thunderstorms after midnight. Patchy smoke before 10pm, then patchy smoke after 5am. Mostly cloudy, with a low around 55. Northwest wind 3 to 6 mph. Chance of precipitation is 30%.
Monday
Patchy smoke before 7am. Partly sunny, with a high near 75. Calm wind becoming west southwest around 6 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 55. West northwest wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 73. Light and variable wind becoming west around 6 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 77. Calm wind becoming west 5 to 9 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 81.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles S Lloyd MT
 48.02°N 109.33°W (Elev. 4101 ft)
12:32 pm MDT Aug 15, 2026
4pm MDT Aug 15, 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