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.

A Few Clouds

45°F

7°C

Humidity 46%
Wind Speed W 20 G 30 mph
Barometer 30.04 in (1017.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 18 Apr 8:56 pm CDT
Extended Forecast for

Rensselaer IN

Freeze Watch April 20, 12:00am until April 20, 09:00am
Frost Advisory April 19, 12:00am until April 19, 09:00am
Click here for hazard details and duration
Freeze Watch
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, mostly clear, with a low around 34. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: A 30 percent chance of showers after 1pm. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 53. West southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 53 °F

    Areas Frost
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 31. North northwest wind 5 to 10 mph becoming light northwest in the evening. Winds could gust as high as 15 mph.

    Low: 31 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 54. Calm wind becoming east southeast around 5 mph.

    High: 54 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of frost after 2am. Otherwise, mostly clear, with a low around 34. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
A 30 percent chance of showers after 1pm. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 53. West southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 31. North northwest wind 5 to 10 mph becoming light northwest in the evening. Winds could gust as high as 15 mph.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 54. Calm wind becoming east southeast around 5 mph.
Monday Night
Partly cloudy, with a low around 42. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A chance of showers. Partly cloudy, with a low around 61.
Friday
Showers likely. Mostly cloudy, with a high near 74.
Friday Night
A chance of showers. Mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rensselaer IN
 40.94°N 87.16°W
Last Update:
9:30 pm CDT Apr 18, 2026
Forecast Valid:
9pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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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