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

Plymouth (KC65)

Lat: 41.37°NLon: 86.3°WElev: 801ft.

Overcast

39°F

4°C

Humidity 70%
Wind Speed NW 17 G 28 mph
Barometer 30.08 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 5 Apr 10:35 am EDT
Extended Forecast for

Koontz Lake IN

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 49. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 49 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A 30 percent chance of rain, mainly between 1am and 4am. Partly cloudy, with a low around 38. West wind 5 to 10 mph.

    Low: 38 °F

    Partly Cloudy
    then Chance
    Rain

  • Monday

    Monday: A 10 percent chance of rain before 7am. Partly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. North wind 5 to 10 mph.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 70. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 49. Northwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
A 30 percent chance of rain, mainly between 1am and 4am. Partly cloudy, with a low around 38. West wind 5 to 10 mph.
Monday
A 10 percent chance of rain before 7am. Partly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 26. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 42. North wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 54.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 70. Chance of precipitation is 30%.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 68.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Saturday
A chance of showers. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Koontz Lake IN
 41.41°N 86.48°W (Elev. 696 ft)
Last Update:
8:00 am CDT Apr 5, 2026
Forecast Valid:
9am CDT Apr 5, 2026-6pm CDT Apr 11, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation