Severe Weather and Heavy Rainfall in the Midwest and Desert Southwest; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall are possible in the Midwest into the Central Appalachians and the Desert Southwest early this week. Storms are also expected in parts of the northern Plains today. Fire weather and air quality concerns will persist across portions of the West. Mid-summer heat will continue across much of the CONUS this week, especially in the the south-central High Plains. Read More >

Current conditions at

Valparaiso Porter County Municipal Airport (KVPZ)

Lat: 41.45°NLon: 87°WElev: 768ft.

Fair

85°F

29°C

Humidity 80%
Wind Speed SW 8 mph
Barometer 29.94 in (1013.2 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 10 Aug 5:56 pm CDT
Extended Forecast for

Rensselaer IN

Severe T-storm Watch August 10, 06:30pm until August 11, 01:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch August 10, 06:30pm until August 11, 01:00am

    NOW until 1:00am Tue

    Severe T-storm Watch

  • Tonight

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before 4pm. Some of the storms could be severe and produce heavy rainfall.  High near 82. South wind around 5 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 82 °F

    Severe
    Thunderstorms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am.  Increasing clouds, with a low around 66. Calm wind.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 83. Calm wind becoming west southwest around 5 mph.  Chance of precipitation is 60%.

    High: 83 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers.  Mostly cloudy, with a low around 65. Calm wind.  Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 80. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers before 1pm.  Mostly cloudy, with a high near 78.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Tuesday
Showers and thunderstorms, mainly before 4pm. Some of the storms could be severe and produce heavy rainfall. High near 82. South wind around 5 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 66. Calm wind.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Calm wind becoming west southwest around 5 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Friday
A chance of showers before 1pm. Mostly cloudy, with a high near 78.
Friday Night
A chance of showers after 1am. Mostly cloudy, with a low around 62.
Saturday
A chance of showers before 1pm. Partly sunny, with a high near 81.
Saturday Night
A chance of showers. Partly cloudy, with a low around 67.
Sunday
A chance of showers. Partly sunny, with a high near 81.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 63.
Monday
Partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Rensselaer IN
 40.94°N 87.16°W
6:26 pm CDT Aug 10, 2026
6pm CDT Aug 10, 2026-6pm CDT Aug 17, 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