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Frank Holten Main Lake — Boating Conditions
Tides, water temp & weather • St Clair County, IL
Boating Conditions at Frank Holten Main Lake
Current wind, air and water temperature, tide times and a 10-day forecast for Frank Holten Main Lake on Frank Holten Main Lake in St Clair County, Illinois. Check conditions before you launch.
Right Now
Clear
Calm — good conditions to get on the water
Air Temp
85°F
Wind
5 mph
gusts 7 mph
Next Few Hours
Now
☀️
85°
5 mph
9PM
☀️
83°
1%
6 mph
10PM
⛅
82°
1%
6 mph
11PM
⛅
82°
1%
8 mph
12AM
⛅
81°
1%
8 mph
1AM
☀️
79°
1%
6 mph
10-Day Boating Forecast
Sat, 9/19
⛅
95° / 74°
Wind 9, gusts 20 mph
1% rain
Sun, 9/20
🌧️
91° / 72°
Wind 13, gusts 25 mph
45% rain
Mon, 9/21
⛅
76° / 69°
Wind 8, gusts 15 mph
43% rain
Tue, 9/22
⛅
75° / 66°
Wind 8, gusts 15 mph
27% rain
Wed, 9/23
⛅
77° / 60°
Wind 9, gusts 25 mph
1% rain
Thu, 9/24
⛅
76° / 58°
Wind 8, gusts 22 mph
Fri, 9/25
🌧️
72° / 61°
Wind 6, gusts 14 mph
3% rain
Sat, 9/26
🌧️
65° / 60°
Wind 6, gusts 15 mph
4% rain
Sun, 9/27
🌧️
74° / 61°
Wind 7, gusts 21 mph
11% rain
Mon, 9/28
⛅
78° / 55°
Wind 7, gusts 24 mph
17% 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.
