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Heidecke Lake — Boating Conditions
Tides, water temp & weather • Grundy County, IL
Boating Conditions at Heidecke Lake
Current wind, air and water temperature, tide times and a 10-day forecast for Heidecke Lake on Heidecke Lake in Grundy County, Illinois. Check conditions before you launch.
Right Now
Overcast
Calm — good conditions to get on the water
Air Temp
72°F
Wind
5 mph
gusts 10 mph
Wave Height
0.1 ft
1.7s period
Next Few Hours
Now
⛅
72°
40%
5 mph
8PM
⛅
71°
35%
1 mph
9PM
⛅
71°
47%
1 mph
10PM
⛅
71°
39%
7 mph
11PM
⛅
70°
30%
5 mph
12AM
⛅
70°
29%
5 mph
10-Day Boating Forecast
Sat, 9/19
🌧️
74° / 68°
Wind 10, gusts 20 mph
52% rain
Sun, 9/20
🌧️
74° / 63°
Wind 13, gusts 29 mph
55% rain
Mon, 9/21
🌧️
63° / 59°
Wind 15, gusts 34 mph
55% rain
Tue, 9/22
⛅
63° / 53°
Wind 14, gusts 23 mph
37% rain
Wed, 9/23
⛅
67° / 51°
Wind 13, gusts 20 mph
5% rain
Thu, 9/24
⛅
64° / 51°
Wind 8, gusts 19 mph
3% rain
Fri, 9/25
⛅
70° / 53°
Wind 9, gusts 17 mph
3% rain
Sat, 9/26
⛅
71° / 54°
Wind 8, gusts 22 mph
1% rain
Sun, 9/27
⛅
73° / 51°
Wind 8, gusts 17 mph
7% rain
Mon, 9/28
☀️
75° / 51°
Wind 8 mph
8% rain
Weather & wave data from Open-Meteo. Tides & water temperature from NOAA CO-OPS. Conditions are estimates for trip planning — always confirm locally and check official marine forecasts before heading out.
