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

Heavy Rainfall May Produce Flooding Across South Texas and Parts of the Northeast; Severe Thunderstorms in the Rio Grande Valley and Southern Appalachians Today

Widespread showers and thunderstorms producing heavy rain may bring flooding to South Texas and parts of the Northeast U.S. today and tonight. Isolated to scattered severe thunderstorms with damaging gusts and large hail are expected today over parts of the southern Appalachians, Tennessee Valley, and Rio Grande Valley of Texas. Read More >

Current conditions at

Helmville MT-200 MP 53.3 (MTHLM)

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

NA

60°F

16°C

Humidity 32%
Wind Speed W 13 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 08 May 11:30 AM MDT
Extended Forecast for

Helmville MT

  • Today

    Today: Sunny, with a high near 70. West wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. West northwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81. Calm wind becoming west around 6 mph in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. West wind 5 to 7 mph becoming calm in the evening.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. Chance of precipitation is 50%.

    High: 74 °F

    Slight Chance
    Rain then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before midnight, then rain likely after midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Showers
    Likely

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 61.

    High: 61 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 70. West wind 9 to 13 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 38. West northwest wind 10 to 15 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.
Friday
Sunny, with a high near 81. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 45. West wind 5 to 7 mph becoming calm in the evening.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.
Sunday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. Chance of precipitation is 50%.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then rain likely after midnight. Mostly cloudy, with a low around 41.
Monday
Rain likely. Mostly cloudy, with a high near 61.
Monday Night
Rain likely. Mostly cloudy, with a low around 35.
Tuesday
Rain likely. Mostly cloudy, with a high near 54.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 34.
Wednesday
A chance of rain. Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helmville MT
 46.86°N 112.97°W (Elev. 4376 ft)
Last Update:
3:30 am MDT May 8, 2025
Forecast Valid:
11am MDT May 8, 2025-6pm MDT May 14, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation