Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

ROCKY BOY (ROCM8)

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

NA

29°F

-2°C

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

11 Miles SSW Lloyd MT

Winter Weather Advisory October 11, 05:34am until October 12, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory October 11, 05:34am until October 12, 06:00am

    NOW until 6:00am Mon

    Winter Weather Advisory

  • Overnight

    Low: 28 °F

    Snow

  • Sunday

    Sunday: Snow.  High near 30. Northeast wind around 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 30 °F

    Snow

  • Sunday Night

    Sunday Night: Snow.  Steady temperature around 29. Northeast wind 7 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 29 °F

    Snow

  • Columbus Day

    Columbus Day: Snow, mainly before 1pm.  High near 34. North northeast wind around 5 mph becoming light and variable  in the morning.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Snow then
    Slight Chance
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 42. Calm wind becoming west around 5 mph in the afternoon.

    High: 42 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 46. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 46 °F

    Sunny

Detailed Forecast

Overnight
Snow. Low around 28. Northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of around an inch possible.
Sunday
Snow. High near 30. Northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
Snow. Steady temperature around 29. Northeast wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Columbus Day
Snow, mainly before 1pm. High near 34. North northeast wind around 5 mph becoming light and variable in the morning. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday Night
Mostly cloudy, with a low around 24. Calm wind.
Tuesday
Sunny, with a high near 42. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 26. Calm wind.
Wednesday
Sunny, with a high near 46. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 46.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Sunny, with a high near 50.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 60.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSW Lloyd MT
 48.14°N 109.41°W (Elev. 4580 ft)
4:42 am MDT Oct 11, 2026
5am MDT Oct 11, 2026-6pm MDT Oct 17, 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