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Lake Wilhelm #4 — Boating Conditions
Tides, water temp & weather • Mercer County, PA
Boating Conditions at Lake Wilhelm #4
Current wind, air and water temperature, tide times and a 10-day forecast for Lake Wilhelm #4 on Sandy Creek - Lake Wilhelm in Mercer County, Pennsylvania. Check conditions before you launch.
Right Now
Clear
Calm — good conditions to get on the water
Air Temp
64°F
Wind
4 mph
gusts 8 mph
Next Few Hours
Now
☀️
64°
13%
4 mph
9PM
⛅
62°
30%
5 mph
10PM
⛅
63°
48%
6 mph
11PM
🌧️
63°
69%
5 mph
12AM
🌧️
63°
74%
7 mph
1AM
🌧️
63°
60%
5 mph
10-Day Boating Forecast
Sat, 9/19
🌧️
68° / 58°
Wind 8, gusts 18 mph
69% rain
Sun, 9/20
🌧️
68° / 60°
Wind 8, gusts 20 mph
74% rain
Mon, 9/21
🌧️
62° / 54°
Wind 13, gusts 28 mph
28% rain
Tue, 9/22
🌧️
57° / 51°
Wind 14, gusts 31 mph
42% rain
Wed, 9/23
🌧️
51° / 49°
Wind 14, gusts 31 mph
48% rain
Thu, 9/24
🌧️
54° / 49°
Wind 12, gusts 24 mph
35% rain
Fri, 9/25
☀️
68° / 45°
Wind 8, gusts 17 mph
6% rain
Sat, 9/26
☀️
67° / 43°
Wind 10, gusts 27 mph
5% rain
Sun, 9/27
⛅
66° / 46°
Wind 12, gusts 26 mph
4% rain
Mon, 9/28
⛅
67° / 47°
Wind 10 mph
11% 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.
