Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Hazardous Weather Conditions

Current conditions at

ROCKY BOY (RCBM8)

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

NA

86°F

30°C

Humidity 38%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 58°F (14°C)
Visibility NA
Heat Index85°F (29°C)
Last update 12 Jul 10:18 AM MDT
Extended Forecast for

2 Miles NW Rocky Boy MT

Heat Advisory July 12, 10:34am until July 13, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 12, 10:34am until July 13, 09:00pm

    NOW until 9:00pm Mon

    Heat Advisory

  • Today

    High: 100 °F

    Hot

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm.  Cloudy, then gradually becoming partly cloudy, with a low around 64. Northwest wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 20 mph.

    Low: 64 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 94. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight, then a chance of showers after midnight.  Mostly cloudy, with a low around 66. East southeast wind 6 to 10 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 3pm.  Partly sunny, with a high near 89. East northeast wind 6 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 62. East northeast wind 5 to 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 86 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 61. East wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Today
Mostly sunny and hot, with a high near 100. South southeast wind 7 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 64. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Monday
A 20 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. Calm wind becoming east southeast around 5 mph in the afternoon.
Monday Night
A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight, then a chance of showers after midnight. Mostly cloudy, with a low around 66. East southeast wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 89. East northeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. East northeast wind 5 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61. East wind around 5 mph becoming calm in the evening.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Friday
Sunny, with a high near 86.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Saturday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Rocky Boy MT
 48.28°N 109.81°W (Elev. 3432 ft)
7:41 am MDT Jul 12, 2026
10am MDT Jul 12, 2026-6pm MDT Jul 18, 2026
 
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Additional Resources

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