Koontz Lake, IN Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Koontz Lake, IN in one place.
Partly sunny, with a high near 87. Southwest wind 0 to 10 mph.
Local Weather Overview
This forecast page for Koontz Lake, IN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 25, 2026 4:12 PM CDT.
The active forecast window currently covers Jul 26 to Jul 31, 2026 for Koontz Lake, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 26 to Jul 31, 2026
- Latest sync
- Jul 25, 2026 4:12 PM CDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Koontz Lake
Monday looks like the warmest upcoming period in Koontz Lake at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 25, 2026 4:12 PM CDT
- Coverage
- 6 days
- Time zone
- America/Indiana/Knox
- Forecast office
- IWX
- Radar station
- KIWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am. Partly cloudy, with a low around 70. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 81.
Mostly clear, with a low around 61.
Sunny, with a high near 80.
Mostly clear, with a low around 59.
Sunny, with a high near 82.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jul 26
|
Partly Sunny
|
87°F |
0 to 10 mph
SW
|
|
Sunday Night
Jul 26
|
Chance Showers And Thunderstorms
|
71°F |
5 mph
SW
|
|
Monday
Jul 27
|
Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
SW
|
|
Monday Night
Jul 27
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
70°F |
5 to 10 mph
SW
|
|
Tuesday
Jul 28
|
Mostly Sunny
|
81°F |
10 to 15 mph
NW
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
61°F |
5 to 15 mph
N
|
|
Wednesday
Jul 29
|
Sunny
|
80°F |
5 to 10 mph
N
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
59°F |
0 to 10 mph
N
|
|
Thursday
Jul 30
|
Sunny
|
82°F |
0 to 5 mph
NE
|
|
Thursday Night
Jul 30
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
62°F |
0 to 5 mph
NE
|
|
Friday
Jul 31
|
Slight Chance Showers And Thunderstorms
|
83°F |
0 to 5 mph
W
|
|
Friday Night
Jul 31
|
Slight Chance Showers And Thunderstorms
|
64°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Koontz Lake.