Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Valparaiso Porter County Municipal Airport (KVPZ)

Lat: 41.45°NLon: 87°WElev: 768ft.

Fair

77°F

25°C

Humidity 56%
Wind Speed N 6 mph
Barometer 30.02 in (1016.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Aug 4:56 pm CDT
Extended Forecast for

Rensselaer IN

  • This Afternoon

    This Afternoon: A 20 percent chance of showers.  Mostly sunny, with a high near 81. North wind around 5 mph.

    High: 81 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Increasing clouds, with a low around 56. North wind around 5 mph becoming calm  in the evening.

    Low: 56 °F

    Increasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 81. Calm wind becoming east northeast around 5 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. Southeast wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 81. North wind around 5 mph.
Tonight
Increasing clouds, with a low around 56. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 81. Calm wind becoming east northeast around 5 mph.
Friday Night
Mostly clear, with a low around 57. Southeast wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
Mostly cloudy, with a low around 65.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Rensselaer IN
 40.94°N 87.16°W
2:51 pm CDT Aug 27, 2026
5pm CDT Aug 27, 2026-6pm CDT Sep 3, 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