Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Hazardous Weather Conditions

Current conditions at

Valparaiso Porter County Municipal Airport (KVPZ)

Lat: 41.45°NLon: 87°WElev: 768ft.

Fair

75°F

24°C

Humidity 84%
Wind Speed S 7 mph
Barometer 30.02 in (1015.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 19 Jul 7:56 am CDT
Extended Forecast for

Rensselaer IN

  • Today

    Today: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 86. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70. West southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 10 mph.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 80. North wind around 5 mph, with gusts as high as 10 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. North northeast wind around 5 mph, with gusts as high as 10 mph.  Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 81. East wind 5 to 10 mph.  Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 86. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. West southwest wind around 5 mph becoming northwest after midnight. Winds could gust as high as 10 mph.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. North wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. North northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 40%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. East wind 5 to 10 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 93.
Thursday Night
A chance of showers. Partly cloudy, with a low around 71.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Rensselaer IN
 40.94°N 87.16°W
8:12 am CDT Jul 19, 2025
8am CDT Jul 19, 2025-6pm CDT Jul 25, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database