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

Severe Weather and Excessive Rain from the Southern Plains into the Mississippi Valley

Severe thunderstorms may produce tornadoes, some strong, damaging wind gusts above 70 mph, and very large hail exceeding 2 inches in diameter, and intense rainfall that may cause flash flooding tonight across much of the southern Plains and lower Missouri Valley. The severe thunderstorms and excessive rainfall will expand from east Texas into the Mississippi Valley on Sunday. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Mostly Cloudy

11°C

51°F

Humidity 38%
Wind Speed NNW 5 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint -3°C (27°F)
Visibility 16 km
Last update 28 Apr 08:53 AM MDT
Extended Forecast for

Helena MT

  • Today

    Today: Increasing clouds, with a high near 16. West wind 23 to 26 km/h, with gusts as high as 40 km/h.

    Increasing
    Clouds

    High: 16 °C

  • Tonight

    Tonight: A 20 percent chance of rain after 5am. Mostly cloudy, with a low around 2. West wind 21 to 26 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 40 km/h.

    Mostly Cloudy
    then Slight
    Chance Rain

    Low: 2 °C

  • Monday

    Monday: Rain likely before noon, then showers and possibly a thunderstorm between noon and 3pm, then rain after 3pm. High near 12. West northwest wind 5 to 10 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 39 km/h. Chance of precipitation is 90%. New rainfall amounts between 2.5 and 5 mm possible.

    Showers

    High: 12 °C

  • Monday
    Night

    Monday Night: A slight chance of rain before 9pm, then a slight chance of snow between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Breezy, with a west southwest wind 29 to 35 km/h, with gusts as high as 55 km/h. Chance of precipitation is 20%.

    Slight Chance
    Rain/Snow and
    Breezy then
    Partly Cloudy

    Low: -1 °C

  • Tuesday

    Tuesday: A chance of snow between noon and 3pm, then a chance of rain after 3pm. Mostly sunny, with a high near 10. Breezy, with a west southwest wind 29 to 39 km/h, with gusts as high as 60 km/h. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Breezy. Sunny
    then Chance
    Rain/Snow

    High: 10 °C

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of snow showers after midnight. Partly cloudy, with a low around -1. Blustery, with a west wind 30 to 35 km/h decreasing to 21 to 26 km/h after midnight. Winds could gust as high as 55 km/h.

    Partly Cloudy
    and Blustery
    then Slight
    Chance Snow
    Showers

    Low: -1 °C

  • Wednesday

    Wednesday: A chance of snow showers before noon, then rain showers likely. Partly sunny, with a high near 9. West wind 18 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 60%. New snow accumulation of less than a half centimeter possible.

    Chance Snow
    Showers then
    Showers
    Likely

    High: 9 °C

  • Wednesday
    Night

    Wednesday Night: A chance of rain and snow showers before 3am, then a slight chance of snow showers. Mostly cloudy, with a low around -1. North northwest wind 18 to 23 km/h decreasing to 11 to 16 km/h after midnight. Winds could gust as high as 34 km/h.

    Chance
    Rain/Snow

    Low: -1 °C

  • Thursday

    Thursday: A slight chance of snow showers before 9am, then a slight chance of rain and snow showers between 9am and noon, then a chance of rain showers after noon. Partly sunny, with a high near 13.

    Slight Chance
    Rain/Snow
    then Chance
    Showers

    High: 13 °C

Detailed Forecast

Today
Increasing clouds, with a high near 16. West wind 23 to 26 km/h, with gusts as high as 40 km/h.
Tonight
A 20 percent chance of rain after 5am. Mostly cloudy, with a low around 2. West wind 21 to 26 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 40 km/h.
Monday
Rain likely before noon, then showers and possibly a thunderstorm between noon and 3pm, then rain after 3pm. High near 12. West northwest wind 5 to 10 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 39 km/h. Chance of precipitation is 90%. New rainfall amounts between 2.5 and 5 mm possible.
Monday Night
A slight chance of rain before 9pm, then a slight chance of snow between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Breezy, with a west southwest wind 29 to 35 km/h, with gusts as high as 55 km/h. Chance of precipitation is 20%.
Tuesday
A chance of snow between noon and 3pm, then a chance of rain after 3pm. Mostly sunny, with a high near 10. Breezy, with a west southwest wind 29 to 39 km/h, with gusts as high as 60 km/h. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday Night
A 20 percent chance of snow showers after midnight. Partly cloudy, with a low around -1. Blustery, with a west wind 30 to 35 km/h decreasing to 21 to 26 km/h after midnight. Winds could gust as high as 55 km/h.
Wednesday
A chance of snow showers before noon, then rain showers likely. Partly sunny, with a high near 9. West wind 18 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 60%. New snow accumulation of less than a half centimeter possible.
Wednesday Night
A chance of rain and snow showers before 3am, then a slight chance of snow showers. Mostly cloudy, with a low around -1. North northwest wind 18 to 23 km/h decreasing to 11 to 16 km/h after midnight. Winds could gust as high as 34 km/h.
Thursday
A slight chance of snow showers before 9am, then a slight chance of rain and snow showers between 9am and noon, then a chance of rain showers after noon. Partly sunny, with a high near 13.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 1.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 13.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 1.
Saturday
A slight chance of showers. Mostly sunny, with a high near 17.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Helena MT
 46.6°N 112.05°W (Elev. 1211 m)
Last Update:
9:00 am MDT Apr 28, 2024
Forecast Valid:
9am MDT Apr 28, 2024-6pm MDT May 4, 2024
 
Forecast Discussion
 
Get as KML Get as XML

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