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.

Overcast

55°F

13°C

Humidity 100%
Wind Speed W 13 mph
Barometer 29.72 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 18 Apr 8:55 am EDT
Extended Forecast for

Koontz Lake IN

  • Today

    Today: A 40 percent chance of showers, mainly before 10am. Partly sunny, with a temperature falling to around 49 by noon. West wind around 15 mph, with gusts as high as 25 mph.

    High: 56 °F⇓

    Chance
    Showers then
    Partly Sunny

  • Tonight

    Tonight: 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. Northeast wind around 5 mph becoming west in the afternoon.

    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

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
A 40 percent chance of showers, mainly before 10am. Partly sunny, with a temperature falling to around 49 by noon. West wind around 15 mph, with gusts as high as 25 mph.
Tonight
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. Northeast wind around 5 mph becoming west in the afternoon.
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 40 percent 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:
7:01 am CDT Apr 18, 2026
Forecast Valid:
8am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation