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

Helmville MT-200 MP 53.3 (MTHLM)

Lat: 46.96826°NLon: 112.97487°WElev: 4199.0ft.

NA

71°F

22°C

Humidity 22%
Wind Speed NW 9 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 17 Jun 03:15 PM MDT
Extended Forecast for

9 Miles E Greenough MT

  • This Afternoon

    This Afternoon: A 20 percent chance of rain after 4pm. Mostly sunny, with a high near 58. West northwest wind around 16 mph, with gusts as high as 25 mph.

    High: 58 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 10pm. Partly cloudy, with a low around 45. West southwest wind 7 to 16 mph, with gusts as high as 24 mph.

    Low: 45 °F

    Chance Rain
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 63. West wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Northwest wind 10 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.

    Low: 43 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 67. East wind 5 to 10 mph becoming light northeast in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain after 4pm. Mostly sunny, with a high near 58. West northwest wind around 16 mph, with gusts as high as 25 mph.
Tonight
A 30 percent chance of rain, mainly before 10pm. Partly cloudy, with a low around 45. West southwest wind 7 to 16 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 63. West wind 7 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 43. Northwest wind 10 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.
Juneteenth
Mostly sunny, with a high near 67. East wind 5 to 10 mph becoming light northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles E Greenough MT
 46.92°N 113.26°W (Elev. 6640 ft)
Last Update:
2:01 pm MDT Jun 17, 2026
Forecast Valid:
3pm MDT Jun 17, 2026-6pm MDT Jun 24, 2026
 
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Additional Resources

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Chance of Precipitation