Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

BNSF Java East (JVEMT)

Lat: 48.23587°NLon: 113.56453°WElev: 4043.0ft.

NA

55°F

13°C

Humidity 76%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 18 Aug 01:00 AM MDT
Extended Forecast for

30 Miles E Swan Lake MT

  • Overnight

    Overnight: Mostly clear, with a low around 51. South southeast wind around 6 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain, mainly between noon and 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly cloudy, with a high near 64. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 26 mph.  Chance of precipitation is 40%.

    High: 64 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 9pm.  Mostly clear, with a low around 51. West wind 7 to 15 mph becoming south southeast in the evening. Winds could gust as high as 26 mph.

    Low: 51 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. West wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. West wind 6 to 9 mph becoming south after midnight.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of rain after midnight.  Mostly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 51. South southeast wind around 6 mph.
Tuesday
A chance of rain, mainly between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 64. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 40%.
Tuesday Night
A 20 percent chance of rain before 9pm. Mostly clear, with a low around 51. West wind 7 to 15 mph becoming south southeast in the evening. Winds could gust as high as 26 mph.
Wednesday
Sunny, with a high near 66. West wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 52. West wind 6 to 9 mph becoming south after midnight.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 52.
Friday
Mostly sunny, with a high near 73.
Friday Night
A slight chance of rain after midnight. Mostly cloudy, with a low around 57.
Saturday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 67.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Sunday
A slight chance of rain. Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
30 Miles E Swan Lake MT
 47.9°N 113.2°W (Elev. 6732 ft)
2:01 am MDT Aug 18, 2026
2am MDT Aug 18, 2026-6pm MDT Aug 24, 2026
 
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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