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Jordanell Reservoir State Park
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Grand Lake Saint Marys State Park , OH
~ 615 miles away - (776)
Today's Forecast May 12, 2021

Grand Lake Saint Marys State Park's current water temperature is 56°F. Today's forecast is: Clear throughout the day., with a high around 62°F and a low around 34°F. Winds are out of the NNE at 6 mph with gusts of 11 mph.

Current Conditions
56°F
Water estimate as of
May 10, 2021
62° 34° F
Air
NNE 6 - 11 gust
Wind
Temps are estimates of the surface temp acquired throughout the lake. Values are generally within a few degrees, but may be inaccurate due to factors including cloud cover, land interference, water levels, and input data quality/accuracy. If a temp is inaccurate, please contact us. Consider helping us improve our accuracy by creating an account and submitting your observed water temps in the section below.


Community Water Temps
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   Your
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Latest satelite temp: 56°F
56°F
  Warning: Greater than 10% difference.




8 Day Forecast as of May 12, 2021
wind key: gust
 |   0-5mph
 |  > 5mph
 |  > 10mph
 |  > 15mph
 |  > 20mph
Wednesday
61° 41°
NNE 6-11 mph
8
10

Clear throughout the day.
Thursday
64° 43°
N 4-7 mph
6
8
10
12
2
4
6
8
10

Partly cloudy throughout the day.
Friday
67° 51°
W 3-5 mph
6
8
10
12
2
4
6
8
10

Clear throughout the day.
Saturday
66° 55°
S 4-10 mph
6
8
10
12
2
4
6
8
10

Mostly cloudy throughout the day.
Sunday
69° 54°
SSE 8-18 mph
6
8
10
12
2
4
6
8
10

Possible light rain overnight.
Monday
72° 56°
SE 8-19 mph
6
8
10
12
2
4
6
8
10

Possible light rain in the morning.
Tuesday
80° 60°
SSE 6-21 mph
6
8
10
12
2
4
6
8
10

Overcast throughout the day.
Wednesday
82° 64°
SSE 8-21 mph

Overcast throughout the day.


Warning: Ice is NEVER 100% Safe!
Thermal Imagery ~ May 10, 2021
Natural Imagery ~ May 07, 2021

Description
Originally constructed as a feeder reservoir for the Miami-Erie Canal, Grand Lake St. Marys was for many years recognized as the largest man-made reservoir in the world. This large lake is the gateway to swimming, boating, camping and fishing in one of Ohio's oldest state parks

Related sites:
en.wikipedia.org
www.stateparks.com

Attributes
13,498
Acres

Pressure
FusionCharts will render here
FusionCharts will render here

Lake Community Posts


Recent Water Temperatures

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Water: 57° H: 61° L: 33°
Wind 7-12 mph
Lake Loramie Clear throughout the day. 19 miles from Grand Lake Saint Marys State Park Minster, OH


Water: 56° H: 60° L: 34°
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Water: 54° H: 63° L: 33°
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Water: 51° H: 61° L: 34°
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Findlay Reservoir Clear throughout the day. 90 miles from Grand Lake Saint Marys State Park Findlay, OH


Water: 0° H: 64° L: 35°
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Water: 36° H: 60° L: 36°
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Acton Lake Clear throughout the day. 109 miles from Grand Lake Saint Marys State Park College Corner, OH


Water: 0° H: 62° L: 35°
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Water: 56° H: 61° L: 36°
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Caesar Creek Lake Clear throughout the day. 117 miles from Grand Lake Saint Marys State Park Waynesville, OH


Water: 56° H: 60° L: 33°
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Delaware Lake Clear throughout the day. 117 miles from Grand Lake Saint Marys State Park Delaware, OH


Water: 0° H: 63° L: 36°
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Water: 57° H: 61° L: 32°
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Water: 60° H: 63° L: 37°
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Griggs Reservoir Clear throughout the day. 126 miles from Grand Lake Saint Marys State Park Columbus, OH


Water: 52° H: 60° L: 34°
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Water: 0° H: 62° L: 32°
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