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Grand Portage Lake Ramp — Boating Conditions
Tides, water temp & weather • TOWN OF MERCER, WI
Boating Conditions at Grand Portage Lake Ramp
Current wind, air and water temperature, tide times and a 10-day forecast for Grand Portage Lake Ramp on Grand Portage Lakle in Iron County, Wisconsin. Check conditions before you launch.
Right Now
Overcast
Calm — good conditions to get on the water
Air Temp
59°F
Wind
5 mph
gusts 8 mph
Next Few Hours
Now
⛅
58°
1%
5 mph
10PM
⛅
59°
4 mph
11PM
⛅
57°
4 mph
12AM
⛅
55°
4 mph
1AM
⛅
54°
5 mph
2AM
⛅
53°
5 mph
10-Day Boating Forecast
Sat, 9/19
⛅
63° / 52°
Wind 7, gusts 20 mph
7% rain
Sun, 9/20
⛅
58° / 46°
Wind 11, gusts 23 mph
1% rain
Mon, 9/21
⛅
59° / 42°
Wind 8, gusts 21 mph
Tue, 9/22
⛅
64° / 37°
Wind 7, gusts 13 mph
Wed, 9/23
☀️
67° / 39°
Wind 7, gusts 22 mph
Thu, 9/24
⛅
67° / 40°
Wind 8, gusts 17 mph
4% rain
Fri, 9/25
⛅
72° / 45°
Wind 5, gusts 8 mph
4% rain
Sat, 9/26
⛅
73° / 49°
Wind 5 mph
10% rain
Sun, 9/27
⛅
73° / 46°
Wind 5 mph
16% rain
Mon, 9/28
⛅
73° / 44°
Wind 9, gusts 27 mph
22% 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.
