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 >

Hazardous Weather Conditions

Current conditions at

New Ulm Municipal Airport (KULM)

Lat: 44.32°NLon: 94.5°WElev: 1001ft.

Fair

75°F

24°C

Humidity 74%
Wind Speed S 6 mph
Barometer 29.96 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 17 Aug 7:55 pm CDT
Extended Forecast for

New Ulm MN

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 64. South wind 5 to 10 mph becoming west after midnight.  Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.  Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 57. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Southeast wind around 5 mph becoming calm.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 83. Light south southwest wind increasing to 5 to 10 mph in the morning.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 62. South southwest wind 5 to 10 mph.

    Low: 62 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny, with a high near 83. West northwest wind 5 to 10 mph.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Mostly clear, with a low around 59. North northwest wind 5 to 10 mph.

    Low: 59 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 64. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 57. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 80. Calm wind becoming southeast around 5 mph.
Wednesday Night
Mostly clear, with a low around 59. Southeast wind around 5 mph becoming calm.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 83. Light south southwest wind increasing to 5 to 10 mph in the morning.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62. South southwest wind 5 to 10 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 83. West northwest wind 5 to 10 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 59. North northwest wind 5 to 10 mph.
Saturday
Sunny, with a high near 79. North northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 57. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 59. South southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 82. South wind 5 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
New Ulm MN
 44.32°N 94.46°W (Elev. 840 ft)
6:56 pm CDT Aug 17, 2026
8pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
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