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Satellite view of Grafton Reservoir

Grafton Reservoir

Reservoir

Good conditions today

Interactive map not available

Current water conditions

Water temp
77°F
25°C
Comfortable for a swim today. The water's in a comfortable range. Still check depth, currents, and the forecast, and follow any posted advisories before getting in.

Live data from NOAA buoy 45204 (17 mi away), as of Aug 21, 1:30 AM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Grafton Reservoir

H: 80° L: 65°
Clear
Clear
66°
|
Feels like 64°
Precipitation
16%
Humidity
66%
Wind
7 mph
UV Index
0
Water Conditions:
🏊Cool but swimmable
12 AM
Overcast
70°
3 AM
Overcast
68°
6 AM
Mist
67°
9 AM
Overcast
69°
12 PM
Overcast
76°
3 PM
Overcast
77°
6 PM
Sunny
78°
9 PM
Clear
68°

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Frequently asked questions

Where is Grafton Reservoir?
Grafton Reservoir is a reservoir in Ohio.
What is the water temperature at Grafton Reservoir?
As of August 21, 2026, the water temperature at Grafton Reservoir in Ohio is 77°F (25°C), measured by NOAA buoy 45204, 17 miles away.
Can you swim at Grafton Reservoir?
There is no fixed answer for Grafton Reservoir: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Grafton Reservoir in Ohio. Check current water conditions before you go, and follow posted signs and local guidance.

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Best Times to Visit

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Good conditions for visiting
🏞️ Lakes Tips:
  • Check for boat launch facilities and fees
  • Obtain required fishing licenses before arrival
  • Be aware of lake-specific regulations and restrictions
  • Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Ohio

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