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

Severe Thunderstorms and Heavy Rainfall From the Southern High Plains into the Lower Mississippi Valley

Strong to severe thunderstorms capable of producing large hail, gusty winds and heavy rainfall will be possible over the next few days from New Mexico to Texas, into western Mississippi. Additional heavy rainfall over previously saturated soils may lead to flash and urban flooding. Isolated thunderstorms will also be possible across portions of the Midwest. Read More >

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

70°F

21°C

Humidity 30%
Wind Speed WSW 8 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 12 May 09:20 PM MDT
Extended Forecast for

Helena MTSimilar City Names

  • Tonight

    Tonight: Mostly clear, with a low around 51. West southwest wind 7 to 10 mph.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 75. West wind 8 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    High: 75 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 49. West southwest wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 64. West southwest wind 9 to 11 mph becoming north northwest in the afternoon. Chance of precipitation is 80%.

    High: 64 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46. North northwest wind 6 to 10 mph becoming west southwest after midnight.

    Low: 46 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71. West northwest wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. West northwest wind 9 to 17 mph becoming southwest after midnight. Winds could gust as high as 25 mph.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after noon. Mostly sunny, with a high near 76. Southwest wind 8 to 17 mph, with gusts as high as 25 mph.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers. Partly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 51. West southwest wind 7 to 10 mph.
Monday
A slight chance of showers between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 75. West wind 8 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 49. West southwest wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 64. West southwest wind 9 to 11 mph becoming north northwest in the afternoon. Chance of precipitation is 80%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46. North northwest wind 6 to 10 mph becoming west southwest after midnight.
Wednesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71. West northwest wind 6 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 49. West northwest wind 9 to 17 mph becoming southwest after midnight. Winds could gust as high as 25 mph.
Thursday
A slight chance of showers after noon. Mostly sunny, with a high near 76. Southwest wind 8 to 17 mph, with gusts as high as 25 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 51.
Friday
A chance of showers, mainly after noon. Mostly sunny, with a high near 68.
Friday Night
A chance of showers. Partly cloudy, with a low around 42.
Saturday
A chance of showers. Partly sunny, with a high near 61.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 40.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MTSimilar City Names
 46.58°N 112.04°W (Elev. 4413 ft)
Last Update:
8:01 pm MDT May 12, 2024
Forecast Valid:
9pm MDT May 12, 2024-6pm MDT May 19, 2024
 
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