National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. Read More >

Current conditions at

ROCKY BOY (RCBM8)

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

NA

69°F

21°C

Humidity 24%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 07 Oct 03:18 PM MDT
Extended Forecast for

Box Elder MT

  • Tonight

    Tonight: Cloudy during the early evening, then clearing, with a low around 40. Light and variable wind.

    Low: 40 °F

    Clearing

  • Thursday

    Thursday: Increasing clouds, with a high near 73. Light south southwest wind.

    High: 73 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 47. South wind 3 to 7 mph.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. South wind 8 to 15 mph, with gusts as high as 29 mph.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. West southwest wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain. Mostly cloudy, with a high near 55. North northwest wind 8 to 15 mph, with gusts as high as 24 mph.

    High: 55 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Rain and snow. Low around 27. North wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Rain/Snow

  • Sunday

    Sunday: Rain and snow likely before 9am, then snow likely between 9am and noon, then a chance of rain and snow after noon. Cloudy, with a high near 42. North northeast wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 42 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Cloudy during the early evening, then clearing, with a low around 40. Light and variable wind.
Thursday
Increasing clouds, with a high near 73. Light south southwest wind.
Thursday Night
Mostly cloudy, with a low around 47. South wind 3 to 7 mph.
Friday
Mostly sunny, with a high near 80. South wind 8 to 15 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 41. West southwest wind 6 to 9 mph, with gusts as high as 22 mph.
Saturday
A 20 percent chance of rain. Mostly cloudy, with a high near 55. North northwest wind 8 to 15 mph, with gusts as high as 24 mph.
Saturday Night
Rain and snow. Low around 27. North wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
Rain and snow likely before 9am, then snow likely between 9am and noon, then a chance of rain and snow after noon. Cloudy, with a high near 42. North northeast wind 8 to 13 mph, with gusts as high as 20 mph.
Sunday Night
A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 25.
Columbus Day
A slight chance of rain and snow before noon. Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Box Elder MT
 48.33°N 110.01°W (Elev. 2661 ft)
Last Update:
12:31 pm MDT Oct 7, 2026
Forecast Valid:
4pm MDT Oct 7, 2026-6pm MDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation