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Grand Lake St. Marys State Park - Its It Ramp — Boating Conditions
Tides, water temp & weather • Mercer County, OH
Boating Conditions at Grand Lake St. Marys State Park - Its It Ramp
Current wind, air and water temperature, tide times and a 10-day forecast for Grand Lake St. Marys State Park - Its It Ramp in Mercer County, Ohio. Check conditions before you launch.
Right Now
Overcast
Calm — good conditions to get on the water
Air Temp
73°F
Wind
6 mph
gusts 9 mph
Next Few Hours
Now
⛅
73°
6%
6 mph
9PM
⛅
72°
12%
7 mph
10PM
🌧️
70°
13%
10 mph
11PM
⛅
69°
12%
3 mph
12AM
⛅
69°
19%
5 mph
1AM
⛅
69°
21%
2 mph
10-Day Boating Forecast
Sat, 9/19
🌧️
79° / 61°
Wind 10, gusts 16 mph
31% rain
Sun, 9/20
🌧️
79° / 64°
Wind 18, gusts 28 mph
50% rain
Mon, 9/21
🌧️
66° / 58°
Wind 17, gusts 30 mph
40% rain
Tue, 9/22
🌧️
61° / 56°
Wind 15, gusts 28 mph
16% rain
Wed, 9/23
🌧️
57° / 52°
Wind 12, gusts 21 mph
36% rain
Thu, 9/24
🌧️
61° / 52°
Wind 11, gusts 17 mph
18% rain
Fri, 9/25
⛅
68° / 52°
Wind 9, gusts 22 mph
5% rain
Sat, 9/26
⛅
67° / 50°
Wind 8, gusts 13 mph
1% rain
Sun, 9/27
⛅
69° / 46°
Wind 8, gusts 24 mph
7% rain
Mon, 9/28
⛅
72° / 49°
Wind 9, gusts 21 mph
10% 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.
