What is the average water temperature in Ohio?

The current average water temperature across Ohio's monitored water bodies is 64.3°F.

🌡️

Ohio Water Temperatures

Q: What is the warmest lake in Ohio today?

Great Miami River At Middletown Oh at 78.1°F.

Current lake & river temperatures in Ohio — updated daily from USGS sensors.

With Data

64.3°F

State Avg

78.1°F

Warmest

78.1°F

Warmest

Great Miami River At Middletown Oh

64.3°F

State Average

100 water bodies

32.5°F

Coldest

Portage River At Woodville Oh

🏊

Swimming Conditions

🚫 Too cold for most swimmers

Based on avg 64.3°F

🎣

Fishing Conditions

🎣 Good — trout, walleye, bass

Based on avg 64.3°F

Ohio — Ranked by Temperature

62 with data

#	Water Body	°F	°C	Condition	🏊	Date
1	Great Miami River At Middletown Oh River	78.1°	25.6°	☀️ Warm	✅ Good	Sep 7
2	Maumee River At Waterville Oh River	74.8°	23.8°	🌤️ Comfortable	✅ Good	Jun 4
3	Hoover Reservoir At Central College Oh Reservoir	73.8°	23.2°	🌤️ Comfortable	✅ Good	Jun 4
4	Maumee River Near Defiance Oh River	73.2°	22.9°	🌤️ Comfortable	✅ Good	Jun 4
5	Maumee River At Antwerp Oh River	73°	22.8°	🌤️ Comfortable	✅ Good	Jun 4
6	Grand River Near Painesville Oh River	72.7°	22.6°	🌤️ Comfortable	✅ Good	Jun 4
7	Black River At Elyria Oh River	72.5°	22.5°	🌤️ Comfortable	✅ Good	Sep 2
8	Scioto R. At O'Shaughnessy Dam Near Dublin Oh Reservoir	71.4°	21.9°	🌤️ Comfortable	⚠️ Brisk	Jun 3
9	Mahoning River Above West Ave At Youngstown Oh River	71.2°	21.8°	🌤️ Comfortable	⚠️ Brisk	May 26
10	Huron River At Milan Oh River	70.5°	21.4°	🌤️ Comfortable	⚠️ Brisk	Jun 4
11	Clover Groff Ditch Below Alton Oh Lake	70.5°	21.4°	🌤️ Comfortable	⚠️ Brisk	Jun 4
12	Rocky River Near Berea Oh River	70.5°	21.4°	🌤️ Comfortable	⚠️ Brisk	Jun 4
13	Mosquito Creek Bl Mosquito Ck Dam Nr Cortland Oh River	70.2°	21.2°	🌤️ Comfortable	⚠️ Brisk	Jun 4
14	Ohio River At Ironton, Oh River	70°	21.1°	🌤️ Comfortable	⚠️ Brisk	Jun 4
15	Alum Creek At Africa Oh River	69.4°	20.8°	🌤️ Comfortable	⚠️ Brisk	Jun 4
16	Sandusky River Near Fremont Oh River	69.4°	20.8°	🌤️ Comfortable	⚠️ Brisk	Jun 4
17	Big Darby Creek Above Georgesville Oh River	68.9°	20.5°	🌤️ Comfortable	⚠️ Brisk	Jun 4
18	Mcguire Creek Above Leesville Lake Oh River	68.7°	20.4°	🌤️ Comfortable	⚠️ Brisk	Jun 4
19	Cuyahoga River At Jaite Oh River	68.5°	20.3°	🌤️ Comfortable	⚠️ Brisk	Jun 4
20	Mahoning River At Lowellville Oh River	68.2°	20.1°	🌤️ Comfortable	⚠️ Brisk	Jun 4
21	Scioto River At Higby Oh River	68°	20°	🌤️ Comfortable	⚠️ Brisk	Sep 29
22	Mahoning River Near U.S. Route 422 At Warren Oh River	67.8°	19.9°	🌤️ Comfortable	⚠️ Brisk	Jun 4
23	Paint Creek Near Bainbridge Oh River	67.5°	19.7°	🌤️ Comfortable	⚠️ Brisk	Jun 4
24	Scioto River Near Prospect Oh River	67.5°	19.7°	🌤️ Comfortable	⚠️ Brisk	Jun 3
25	Scioto River At Chillicothe Oh River	67.1°	19.5°	🌤️ Comfortable	⚠️ Brisk	Sep 29
26	Indian Fork At Dellroy Oh Lake	66.9°	19.4°	🌤️ Comfortable	⚠️ Brisk	Jun 4
27	Raccoon Creek Near Granville Oh River	66.6°	19.2°	🌤️ Comfortable	⚠️ Brisk	Jun 4
28	South Fork Above Senecaville Lake Oh Lake	66.4°	19.1°	🌤️ Comfortable	⚠️ Brisk	Jun 4
29	Paint Creek At Chillicothe Oh River	66.2°	19°	🌤️ Comfortable	⚠️ Brisk	Sep 29
30	Pymatuning Creek At Kinsman Oh River	66.2°	19°	🌤️ Comfortable	⚠️ Brisk	Jun 4
31	Mahoning River At Leavittsburg Oh River	66.2°	19°	🌤️ Comfortable	⚠️ Brisk	Jun 4
32	Mosquito Creek Near Greene Center Oh River	65.8°	18.8°	🌤️ Comfortable	⚠️ Brisk	Jun 4
33	Clear Fork Above Tappan Lake Oh Lake	65.8°	18.8°	🌤️ Comfortable	⚠️ Brisk	Jun 4
34	Mahoning River At Alliance Oh River	65.3°	18.5°	🌤️ Comfortable	⚠️ Brisk	Jun 4
35	Seneca Fork Above Senecaville Lake Oh Lake	65.3°	18.5°	🌤️ Comfortable	⚠️ Brisk	Jun 4
36	Cuyahoga River At Independence Oh River	65.1°	18.4°	🌤️ Comfortable	⚠️ Brisk	Jun 4
37	Beaver Creek Above Senecaville Lake Oh River	64.9°	18.3°	🌊 Cool	🚫 Cold	Jun 4
38	Stillwater Creek Above Piedmont Lake Oh River	64.9°	18.3°	🌊 Cool	🚫 Cold	Jun 4
39	Brushy Fork Above Clendening Lake Oh Lake	64.8°	18.2°	🌊 Cool	🚫 Cold	Jun 4
40	Mahoning River At Pricetown Oh River	64.8°	18.2°	🌊 Cool	🚫 Cold	Jun 4
41	Big Walnut Creek At Sunbury Oh River	64.2°	17.9°	🌊 Cool	🚫 Cold	Jun 4
42	West Branch Mahoning River Near Ravenna Oh River	64°	17.8°	🌊 Cool	🚫 Cold	Jun 4
43	North Fork Mcguire Creek Near Carrollton Oh River	63.7°	17.6°	🌊 Cool	🚫 Cold	Jun 4
44	Standingstone Fork Above Tappan Lake Oh Lake	62.6°	17°	🌊 Cool	🚫 Cold	Jun 4
45	Stillwater River At Pleasant Hill Oh River	62.4°	16.9°	🌊 Cool	🚫 Cold	Sep 29
46	Willow Run Near Dellroy Oh Lake	62.2°	16.8°	🌊 Cool	🚫 Cold	Jun 4
47	Unnamed Tributary Near Dellroy Oh Lake	61.9°	16.6°	🌊 Cool	🚫 Cold	Jun 4
48	Deer Creek Near Pancoastburg Oh River	61.5°	16.4°	🌊 Cool	🚫 Cold	Jun 4
49	Beaverdam Run Above Tappan Lake Oh Reservoir	61.2°	16.2°	🌊 Cool	🚫 Cold	Jun 4
50	Mahoning River Bl Berlin Dam Nr Berlin Center Oh River	60.8°	16°	🌊 Cool	🚫 Cold	Jun 4
51	West Branch Mahoning River At Wayland Oh River	59.5°	15.3°	🌊 Cool	🚫 Cold	Jun 4
52	Bear Hole Run Near Carrollton Oh Lake	58.8°	14.9°	🌊 Cool	🚫 Cold	Jun 4
53	Great Miami River At Sidney Oh River	58.1°	14.5°	🌊 Cool	🚫 Cold	Sep 29
54	Auglaize River Near Fort Jennings Oh River	57.9°	14.4°	🌊 Cool	🚫 Cold	Sep 29
55	Huff Run At Mineral City Oh Lake	57.7°	14.3°	🌊 Cool	🚫 Cold	Sep 29
56	Auglaize River Near Defiance Oh River	56.7°	13.7°	🌊 Cool	🚫 Cold	Sep 29
57	Scioto River Above Shadeville Oh River	54.3°	12.4°	❄️ Cold	⛔ Very cold	Mar 15
58	Sandusky River Below Bradys Island At Fremont Oh River	48.7°	9.3°	❄️ Cold	⛔ Very cold	Nov 16
59	Eagle Creek Above Findlay Oh River	43.7°	6.5°	🧊 Very Cold	⛔ Very cold	Nov 20
60	Mill Creek At East Sharon Rd At Sharonville Oh River	43°	6.1°	🧊 Very Cold	⛔ Very cold	Jan 5
61	Vermilion River Near Vermilion Oh River	39.9°	4.4°	🧊 Very Cold	⛔ Very cold	Nov 10
62	Portage River At Woodville Oh River	32.5°	0.3°	🧊 Very Cold	⛔ Very cold	Jan 16
63	Olentangy River At J H Herrick Dr At Columbus Oh River	—	—	—	—	—
64	Tiffin River At Stryker Oh River	—	—	—	—	—
65	Coldwater Creek At Coldwater Oh River	—	—	—	—	—
66	Unnamed Tributary To Styx River At Rittman Oh River	—	—	—	—	—
67	West Fork Duck Creek At Macksburg Oh River	—	—	—	—	—
68	Potato Run Near Wharton Oh Lake	—	—	—	—	—
69	Middle Branch Nimishillen Creek At Canton Oh River	—	—	—	—	—
70	Scioto River At Circleville Oh River	—	—	—	—	—
71	Blanchard River At Ottawa Oh River	—	—	—	—	—
72	Clear Fork Bl Pleasant Hill Dam Nr Perrysville Oh Reservoir	—	—	—	—	—
73	Boggs Fork At Piedmont Oh Lake	—	—	—	—	—
74	South Turkeyfoot Creek Near Shunk Oh River	—	—	—	—	—
75	Leatherwood Creek Near Kipling Oh River	—	—	—	—	—
76	Rocky Fork At Lucas Oh Lake	—	—	—	—	—
77	O'Bannon Creek Near Loveland Oh River	—	—	—	—	—
78	Sandusky River Near Upper Sandusky Oh River	—	—	—	—	—
79	Wills Creek Bl Wills Creek Dam At Wills Creek Oh River	—	—	—	—	—
80	E Fk Little Miami River Bl Harsha Dam Nr Bantam Oh River	—	—	—	—	—
81	North Fork Licking River At Utica Oh River	—	—	—	—	—
82	Stillwater River At Englewood Oh River	—	—	—	—	—
83	Unnamed Trib To W B Rocky R Near Olmsted Falls Oh Lake	—	—	—	—	—
84	Abram Creek At Brook Park Oh River	—	—	—	—	—
85	Hocking River At Enterprise Oh River	—	—	—	—	—
86	Holes Creek Near Kettering Oh River	—	—	—	—	—
87	Brandywine Creek Near Macedonia Oh River	—	—	—	—	—
88	Mill Creek Above Marysville Oh River	—	—	—	—	—
89	Ottawa River At University Of Toledo, Toledo Oh River	—	—	—	—	—
90	Big Creek At Cleveland Oh River	—	—	—	—	—
91	Little Beaver Creek Near East Liverpool Oh River	—	—	—	—	—
92	Conneaut Creek At Conneaut Oh River	—	—	—	—	—
93	Crab Creek At Youngstown Oh River	—	—	—	—	—
94	Ohio River Above Sardis, Oh River	—	—	—	—	—
95	Big Walnut Creek At Central College Oh River	—	—	—	—	—
96	Ottawa River At Lima Oh River	—	—	—	—	—
97	Chippewa Creek Above Easton Oh River	—	—	—	—	—
98	Blanchard River Near Findlay Oh River	—	—	—	—	—
99	Unnamed Trib Abv Wetland Nr Winn Rd Nr Defiance Oh Lake	—	—	—	—	—
100	Black Fork Below Charles Mill Dam Near Mifflin Oh Reservoir	—	—	—	—	—

Great Miami River At Middletown Oh River

78.1°F

☀️ Warm

Maumee River At Waterville Oh River

74.8°F

🌤️ Comfortable

Hoover Reservoir At Central College Oh Reservoir

73.8°F

🌤️ Comfortable

Maumee River Near Defiance Oh River

73.2°F

🌤️ Comfortable

Maumee River At Antwerp Oh River

73°F

🌤️ Comfortable

Grand River Near Painesville Oh River

72.7°F

🌤️ Comfortable

Black River At Elyria Oh River

72.5°F

🌤️ Comfortable

Scioto R. At O'Shaughnessy Dam Near Dublin Oh Reservoir

71.4°F

🌤️ Comfortable

Mahoning River Above West Ave At Youngstown Oh River

71.2°F

🌤️ Comfortable

Huron River At Milan Oh River

70.5°F

🌤️ Comfortable

Clover Groff Ditch Below Alton Oh Lake

70.5°F

🌤️ Comfortable

Rocky River Near Berea Oh River

70.5°F

🌤️ Comfortable

Mosquito Creek Bl Mosquito Ck Dam Nr Cortland Oh River

70.2°F

🌤️ Comfortable

Ohio River At Ironton, Oh River

70°F

🌤️ Comfortable

Alum Creek At Africa Oh River

69.4°F

🌤️ Comfortable

Sandusky River Near Fremont Oh River

69.4°F

🌤️ Comfortable

Big Darby Creek Above Georgesville Oh River

68.9°F

🌤️ Comfortable

Mcguire Creek Above Leesville Lake Oh River

68.7°F

🌤️ Comfortable

Cuyahoga River At Jaite Oh River

68.5°F

🌤️ Comfortable

Mahoning River At Lowellville Oh River

68.2°F

🌤️ Comfortable

More Ohio Resources

🗺️ Ohio Water Levels 🎣 Weekly Fishing Report ⛵ Boat Ramp Status 🌵 Drought Conditions 🌡️ All States

❓ Ohio Water Temperature FAQ

What is the warmest lake in Ohio today?

Based on our latest USGS data, Great Miami River At Middletown Oh is currently the warmest water body in Ohio at 78.1°F.

Which Ohio lakes are good for swimming right now?

Lakes with water temperatures above 72°F are generally comfortable for swimming. Currently, Ohio's average water temperature is 64.3°F — check individual lakes above for specific conditions.

What is the best water temperature for fishing in Ohio?

The optimal temperature range depends on your target species. For bass fishing, look for water bodies between 65–75°F. For trout, target the coldest water bodies in Ohio — typically 50–65°F. Use the table above to identify which lakes are in the ideal range for your target species.

🔬 Data Methodology & Sources

Water temperature readings on this site are collected from USGS (United States Geological Survey) monitoring stations installed at lakes, rivers, and reservoirs across the country. Sensors measure water surface temperature in Celsius, which is converted to Fahrenheit for display. Data is retrieved and stored daily. Temperatures shown reflect the most recent available sensor reading for each water body, typically from the past 1–30 days depending on station reporting frequency.

⚠️ Water temperatures can vary significantly across a water body due to depth, currents, and time of day. Sensor readings represent conditions at the monitoring station location. Always exercise caution when swimming and consult local authorities for official safety advisories.