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.

Fog/Mist

18°F

-8°C

Humidity 100%
Wind Speed S 3 mph
Barometer 30.17 in
Dewpoint 18°F (-8°C)
Visibility 5.00 mi
Last update 1 Feb 8:35 pm EST
Extended Forecast for

Koontz Lake IN

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 2am. Increasing clouds, with a low around 13. South wind 5 to 10 mph.

    Low: 13 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday

    Monday: A 30 percent chance of snow, mainly before 9am. Mostly cloudy, with a high near 27. Southwest wind 5 to 10 mph becoming west in the afternoon.

    High: 27 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16. West wind around 5 mph.

    Low: 16 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 28. West wind around 5 mph becoming north in the afternoon.

    High: 28 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 8. North wind around 5 mph becoming calm in the evening.

    Low: 8 °F

    Slight Chance
    Snow Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
A 40 percent chance of snow, mainly after 2am. Increasing clouds, with a low around 13. South wind 5 to 10 mph.
Monday
A 30 percent chance of snow, mainly before 9am. Mostly cloudy, with a high near 27. Southwest wind 5 to 10 mph becoming west in the afternoon.
Monday Night
Mostly cloudy, with a low around 16. West wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 28. West wind around 5 mph becoming north in the afternoon.
Tuesday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 8. North wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 23.
Wednesday Night
Mostly cloudy, with a low around 9.
Thursday
Partly sunny, with a high near 29.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22.
Friday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 33.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 9.
Saturday
Partly sunny and cold, with a high near 19.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 11.
Sunday
A slight chance of snow. Partly sunny, with a high near 24.
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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:
6:31 pm CST Feb 1, 2026
Forecast Valid:
7pm CST Feb 1, 2026-6pm CST Feb 8, 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