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

Hazardous Weather Conditions

Current conditions at

Plymouth (KC65)

Lat: 41.37°NLon: 86.3°WElev: 801ft.

Fair

79°F

26°C

Humidity 37%
Wind Speed S 10 G 22 mph
Barometer 29.90 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Apr 2:55 pm EDT
Extended Forecast for

Koontz Lake IN

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. South wind around 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall. Low around 46. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 59. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Chance
    T-storms then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 51. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall. Low around 46. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 40 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 59. Northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 36. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 51. West wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Koontz Lake IN
 41.41°N 86.48°W (Elev. 696 ft)
Last Update:
2:00 pm CDT Apr 17, 2026
Forecast Valid:
2pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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