Koontz Lake is a city of approximately 1,600 people in Indiana, United States. Located in the America/Indiana/Knox time zone at 41.4°N latitude.
In 2025, Koontz Lake averaged an annual temperature of 51°F, with hottest temperatures reaching 91°F in June and lowest around -5°F in January. The city received approximately 37 inches of precipitation during the year.
View historical weather for Koontz Lake · More cities in Indiana