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

56°F

13°C

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

5 Miles SSE Rocky Boy MT

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms.  Cloudy, with a high near 60. North northeast wind around 7 mph.

    High: 60 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 42. North northeast wind 3 to 7 mph.  Chance of precipitation is 50%.

    Low: 42 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers between 10am and 2pm.  Mostly cloudy, then gradually becoming sunny, with a high near 67. Light and variable wind becoming west around 5 mph.

    High: 67 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 44. Light east wind becoming southeast 6 to 11 mph in the evening.

    Low: 44 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 74. Southeast wind 5 to 8 mph becoming light and variable.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 48 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 72. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after midnight.  Mostly cloudy, with a low around 45. West northwest wind 5 to 7 mph becoming light and variable  in the evening.

    Low: 45 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 60. North northeast wind around 7 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42. North northeast wind 3 to 7 mph. Chance of precipitation is 50%.
Saturday
A 20 percent chance of showers between 10am and 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 67. Light and variable wind becoming west around 5 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 44. Light east wind becoming southeast 6 to 11 mph in the evening.
Sunday
Sunny, with a high near 74. Southeast wind 5 to 8 mph becoming light and variable.
Sunday Night
Partly cloudy, with a low around 48. West northwest wind around 6 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 72. Calm wind becoming west 5 to 8 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 45. West northwest wind 5 to 7 mph becoming light and variable in the evening.
Tuesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 66.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Rocky Boy MT
 48.18°N 109.73°W (Elev. 5066 ft)
12:31 pm MDT Aug 14, 2026
1pm MDT Aug 14, 2026-6pm MDT Aug 20, 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