Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

ROCKY BOY (ROCM8)

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

NA

48°F

9°C

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

6 Miles S Rocky Boy MT

  • Overnight

    Overnight: A 20 percent chance of showers.  Partly cloudy, with a low around 49. North northwest wind around 5 mph becoming light and variable.

    Low: 49 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers between noon and 3pm.  Partly sunny, with a high near 75. Light and variable wind becoming west 5 to 8 mph in the morning.  Chance of precipitation is 20%.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 7pm.  Mostly cloudy, with a low around 49. North northwest wind 5 to 7 mph becoming light and variable  after midnight.

    Low: 49 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51. Light and variable wind.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79. Light south southwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

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

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Partly cloudy, with a low around 49. North northwest wind around 5 mph becoming light and variable.
Monday
A slight chance of showers between noon and 3pm. Partly sunny, with a high near 75. Light and variable wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 49. North northwest wind 5 to 7 mph becoming light and variable after midnight.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 51. Light and variable wind.
Wednesday
Sunny, with a high near 79. Light south southwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 52. West northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A slight chance of showers. Mostly sunny, with a high near 81.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Rocky Boy MT
 48.18°N 109.76°W (Elev. 4495 ft)
12:31 pm MDT Aug 16, 2026
12am MDT Aug 17, 2026-6pm MDT Aug 23, 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