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 (RCBM8)

Lat: 48.25529°NLon: 109.78592°WElev: 3789.0ft.

NA

69°F

21°C

Humidity 60%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Last update 16 Aug 07:18 PM MDT
Extended Forecast for

2 Miles SSW Rocky Boy MT

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after midnight.  Patchy smoke before 9pm. Partly cloudy, with a low around 50. North wind 5 to 7 mph becoming light and variable.  Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    T-storms then
    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 50. North northwest wind 5 to 7 mph becoming southeast after midnight.

    Low: 50 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Southeast wind around 5 mph becoming calm.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. West wind around 5 mph becoming light and variable.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 78. South southwest wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 18 mph.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. West northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming west around 6 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

Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after midnight. Patchy smoke before 9pm. Partly cloudy, with a low around 50. North wind 5 to 7 mph becoming light and variable. Chance of precipitation is 20%.
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 50. North northwest wind 5 to 7 mph becoming southeast after midnight.
Tuesday
Mostly sunny, with a high near 77. Southeast wind around 5 mph becoming calm.
Tuesday Night
Partly cloudy, with a low around 52. West wind around 5 mph becoming light and variable.
Wednesday
Sunny, with a high near 78. South southwest wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 53. West northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80. Calm wind becoming west around 6 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 56.
Saturday
A slight chance of showers. Mostly sunny, with a high near 80.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Rocky Boy MT
 48.22°N 109.8°W (Elev. 4524 ft)
12:31 pm MDT Aug 16, 2026
8pm MDT Aug 16, 2026-6pm MDT Aug 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database