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.

Mostly Cloudy

54°F

12°C

Humidity 63%
Wind Speed SE 9 mph
Barometer 30.24 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 11 Apr 11:15 pm EDT
Extended Forecast for

Koontz Lake IN

  • Tonight

    Tonight: A slight chance of showers before 3am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 52. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 10am, then a slight chance of showers after 1pm. Mostly cloudy, with a high near 80. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, then showers and possibly a thunderstorm after 1am. Low around 62. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

Detailed Forecast

Tonight
A slight chance of showers before 3am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 52. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers before 10am, then a slight chance of showers after 1pm. Mostly cloudy, with a high near 80. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
A chance of showers, then showers and possibly a thunderstorm after 1am. Low around 62. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 81.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers. Mostly clear, with a low around 55.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53.
Saturday
A chance of showers and thunderstorms. 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:
7:30 pm CDT Apr 11, 2026
Forecast Valid:
10pm CDT Apr 11, 2026-6pm CDT Apr 18, 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