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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

BOORMAN (BOOM8)

Lat: 48.14389°NLon: 114.71806°WElev: 3963.0ft.

NA

75°F

24°C

Humidity 19%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 17 Jun 05:15 PM MDT
Extended Forecast for

18 Miles NW Big Arm MT

  • Tonight

    Tonight: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 48. West wind 5 to 13 mph, with gusts as high as 23 mph.

    Low: 48 °F

    Chance Rain
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. West wind 3 to 8 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. North northeast wind 6 to 8 mph.

    Low: 46 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 70. North northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. East northeast wind around 5 mph becoming calm after midnight.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 48. West wind 5 to 13 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 67. West wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 46. North northeast wind 6 to 8 mph.
Juneteenth
Mostly sunny, with a high near 70. North northeast wind around 6 mph becoming light and variable in the afternoon.
Friday Night
Partly cloudy, with a low around 50. East northeast wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NW Big Arm MT
 47.98°N 114.54°W (Elev. 5240 ft)
Last Update:
2:01 pm MDT Jun 17, 2026
Forecast Valid:
6pm MDT Jun 17, 2026-6pm MDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation