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

Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

NA

55°F

13°C

Humidity 60%
Wind Speed E 5 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 19 Jun 12:00 AM MDT
Extended Forecast for

12 Miles SSE Helmville MT

  • Overnight

    Overnight: Mostly clear, with a low around 40. Northeast wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 64. East southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. North northeast wind 6 to 8 mph becoming southwest after midnight.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. West southwest wind 5 to 11 mph, with gusts as high as 24 mph.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. West northwest wind 7 to 15 mph, with gusts as high as 29 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 40. Northeast wind 8 to 10 mph, with gusts as high as 20 mph.
Juneteenth
Partly sunny, with a high near 64. East southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 45. North northeast wind 6 to 8 mph becoming southwest after midnight.
Saturday
Partly sunny, with a high near 66. West southwest wind 5 to 11 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 45. West northwest wind 7 to 15 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SSE Helmville MT
 46.72°N 112.85°W (Elev. 6801 ft)
Last Update:
12:21 am MDT Jun 19, 2026
Forecast Valid:
12am MDT Jun 19, 2026-6pm MDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

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