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.

Fog/Mist

59°F

15°C

Humidity 100%
Wind Speed SW 9 mph
Barometer 29.68 in
Dewpoint 59°F (15°C)
Visibility 6.00 mi
Last update 18 Apr 5:55 am EDT
Extended Forecast for

Koontz Lake IN

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Steady temperature around 58. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 10am. Partly sunny, with a temperature falling to around 48 by 2pm. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 56 °F⇓

    Showers
    Likely then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 51. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 51 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 31. North wind 5 to 10 mph becoming light in the evening.

    Low: 31 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 52.

    High: 52 °F

    Frost then
    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

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Steady temperature around 58. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 10am. Partly sunny, with a temperature falling to around 48 by 2pm. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 35. West wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 51. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 31. North wind 5 to 10 mph becoming light in the evening.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
A chance of showers. Partly cloudy, with a low around 62.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76.
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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:
5:15 am CDT Apr 18, 2026
Forecast Valid:
5am CDT Apr 18, 2026-6pm CDT Apr 24, 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