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Grand Lake St. Marys State Park - Marina Ramp — Boating Conditions
Tides, water temp & weather • Auglaize County, OH
Boating Conditions at Grand Lake St. Marys State Park - Marina Ramp
Current wind, air and water temperature, tide times and a 10-day forecast for Grand Lake St. Marys State Park - Marina Ramp in Auglaize County, Ohio. Check conditions before you launch.
Right Now
Clear
Calm — good conditions to get on the water
Air Temp
83°F
Wind
5 mph
gusts 11 mph
Next Few Hours
Now
☀️
82°
6 mph
10PM
☀️
81°
1%
7 mph
11PM
☀️
80°
1%
8 mph
12AM
☀️
80°
8 mph
1AM
⛅
79°
1%
8 mph
2AM
☀️
78°
1%
7 mph
10-Day Boating Forecast
Wed, 9/2
☀️
91° / 72°
Wind 12, gusts 20 mph
3% rain
Thu, 9/3
🌧️
93° / 75°
Wind 11, gusts 22 mph
15% rain
Fri, 9/4
⛅
88° / 73°
Wind 9, gusts 17 mph
50% rain
Sat, 9/5
🌧️
83° / 69°
Wind 17, gusts 32 mph
34% rain
Sun, 9/6
⛅
75° / 59°
Wind 12, gusts 26 mph
7% rain
Mon, 9/7
⛅
78° / 55°
Wind 11, gusts 27 mph
4% rain
Tue, 9/8
⛅
85° / 63°
Wind 9, gusts 25 mph
9% rain
Wed, 9/9
⛅
89° / 75°
Wind 16, gusts 41 mph
21% rain
Thu, 9/10
⛅
81° / 66°
Wind 9, gusts 29 mph
31% rain
Fri, 9/11
☀️
83° / 60°
Wind 9, gusts 19 mph
21% 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.
