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

Multimedia Briefing: Heavy Lake Effect Snow Expected (Updated 4pm 11/9)

Briefing summary for the lake effect snow event Nov 9-10 Read More >

Hazardous Weather Conditions

Current conditions at

Plymouth (KC65)

Lat: 41.37°NLon: 86.3°WElev: 801ft.

Fog/Mist

30°F

-1°C

Humidity 100%
Wind Speed W 20 G 28 mph
Barometer 30.07 in
Dewpoint 30°F (-1°C)
Visibility 2.00 mi
Wind Chill17°F (-8°C)
Last update 9 Nov 6:35 pm EST
Extended Forecast for

Koontz Lake IN

Winter Storm Warning November 9, 05:48pm until November 11, 12:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning November 9, 05:48pm until November 11, 12:00am

    NOW until 12:00am Tue

    Winter Storm Warning

  • This Afternoon

    High: 36 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: Snow showers, mainly before 5am. The snow could be heavy at times. Low around 21. Northwest wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 21 °F

    Heavy Snow

  • Monday

    Monday: Snow showers, mainly between 9am and 3pm. High near 32. North wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 32 °F

    Slight Chance
    Snow Showers
    then Snow
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of snow showers before midnight. Mostly cloudy, with a low around 21. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Veterans Day

    Veterans Day: A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 37. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 37 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 50 percent chance of snow showers. Cloudy, with a high near 36. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Snow showers, mainly before 5am. The snow could be heavy at times. Low around 21. Northwest wind 10 to 15 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Monday
Snow showers, mainly between 9am and 3pm. High near 32. North wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Monday Night
A 50 percent chance of snow showers before midnight. Mostly cloudy, with a low around 21. West wind around 10 mph, with gusts as high as 20 mph.
Veterans Day
A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 37. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Sunny, with a high near 41.
Wednesday Night
Mostly clear, with a low around 28.
Thursday
Mostly sunny, with a high near 45.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 51.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Mostly cloudy, with a high near 58.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 45.
Sunday
A chance of showers. Partly sunny, with a high near 58.
Basemap Options
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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:
5:01 pm CST Nov 9, 2025
Forecast Valid:
5pm CST Nov 9, 2025-6pm CST Nov 16, 2025
 
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