National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Valparaiso Porter County Municipal Airport (KVPZ)

Lat: 41.45°NLon: 87°WElev: 768ft.

Fair

73°F

23°C

Humidity 57%
Wind Speed S 8 mph
Barometer 29.89 in (1011.6 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 May 10:56 pm CDT
Extended Forecast for

Rensselaer IN

  • Tonight

    Tonight: Mostly clear, with a low around 67. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Showers and thunderstorms likely, mainly between noon and 3pm. Partly sunny, with a high near 80. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    T-storms
    Likely and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 83. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 83 °F

    Breezy.
    Slight Chance
    T-storms then
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 52. West wind around 10 mph becoming north after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 67. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Showers and thunderstorms likely, mainly between noon and 3pm. Partly sunny, with a high near 80. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 66. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 83. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Tuesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 52. West wind around 10 mph becoming north after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
Mostly cloudy, with a high near 71.
Friday Night
A chance of showers. Mostly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 76.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rensselaer IN
 40.94°N 87.16°W
Last Update:
9:52 pm CDT May 17, 2026
Forecast Valid:
11pm CDT May 17, 2026-6pm CDT May 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation