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.

Fair

45°F

7°C

Humidity 43%
Wind Speed Vrbl 7 G 16 mph
Barometer 30.42 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 28 Mar 6:55 pm EDT
Extended Forecast for

Koontz Lake IN

  • Tonight

    Tonight: Increasing clouds, with a low around 37. South wind 5 to 10 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 60. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 60 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50. South wind around 10 mph.

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 73. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South wind around 15 mph, with gusts as high as 30 mph.

    Low: 63 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers, mainly after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 37. South wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 60. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 50. South wind around 10 mph.
Monday
Partly sunny, with a high near 73. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South wind around 15 mph, with gusts as high as 30 mph.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 48.
Wednesday Night
A chance of rain and snow showers, mainly after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Thursday
A chance of rain and snow showers before 1pm, then a chance of rain showers. Partly sunny, with a high near 47. Chance of precipitation is 50%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 37.
Friday
A 30 percent chance of showers. Mostly cloudy, with a high near 60.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48.
Saturday
Showers likely. Mostly cloudy, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Koontz Lake IN
 41.41°N 86.48°W (Elev. 696 ft)
Last Update:
3:01 pm CDT Mar 28, 2026
Forecast Valid:
6pm CDT Mar 28, 2026-6pm CDT Apr 4, 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