Live readings · updated daily
Water temperature in Ohio
The latest readings from USGS real-time water sensors across Ohio, warmest first. Snapshot updated October 19, 2026.
Warmest sensor reading right now
70°F21°C
USGS gauge E Fk Little Miami River bl Harsha Dam nr Bantam OH · as of 20 hrs ago
All reporting stations (warmest 50 of 311)
| Station | Water temp | Streamflow | Gage height | Observed |
|---|---|---|---|---|
| E Fk Little Miami River bl Harsha Dam nr Bantam OHUSGS gauge | 70°F21°C | — | 16.02 ft | 20 hrs ago |
| Caesar Creek near Wellman OHUSGS gauge | 67°F19°C | — | 5.43 ft | 20 hrs ago |
| OHIO RIVER AT IRONTON, OHUSGS gauge | 65°F18°C | 68,200 ft³/s | 34.64 ft | 20 hrs ago |
| Hoover Reservoir at Central College OHUSGS gauge | 65°F18°C | — | — | 19 hrs ago |
| Cuyahoga River at Rivergate Park at Cleveland OHUSGS gauge | 64°F18°C | — | 4.06 ft | 19 hrs ago |
| Mahoning River bl Berlin Dam nr Berlin Center OHUSGS gauge | 64°F18°C | 472 ft³/s | 2.88 ft | 19 hrs ago |
| Paint Creek near Bainbridge OHUSGS gauge | 64°F18°C | — | 2.75 ft | 19 hrs ago |
| Alum Creek at Africa OHUSGS gauge | 63°F17°C | 95 ft³/s | 2.09 ft | 19 hrs ago |
| Buck Creek bl CJ Brown Reservoir nr Springfield OHUSGS gauge | 63°F17°C | — | 1.15 ft | 19 hrs ago |
| Mahoning River at Pricetown OHUSGS gauge | 63°F17°C | 595 ft³/s | 3.87 ft | 19 hrs ago |
| West Branch Mahoning River at Wayland OHUSGS gauge | 63°F17°C | 87 ft³/s | 3.04 ft | 19 hrs ago |
| Griggs Reservoir at Columbus OHUSGS gauge | 62°F17°C | — | — | 19 hrs ago |
| Scioto R. at O'Shaughnessy Dam near Dublin OHUSGS gauge | 61°F16°C | — | — | 20 hrs ago |
| Scioto River above Shadeville OHUSGS gauge | 60°F16°C | — | — | 19 hrs ago |
| Great Miami River at Hamilton OHUSGS gauge | 60°F15°C | 1,810 ft³/s | 63.15 ft | 19 hrs ago |
| Maumee River near Defiance OHUSGS gauge | 59°F15°C | 1,120 ft³/s | 2.05 ft | 20 hrs ago |
| Mosquito Creek bl Mosquito Ck Dam nr Cortland OHUSGS gauge | 58°F15°C | 3 ft³/s | 1.02 ft | 19 hrs ago |
| Mahoning River at Leavittsburg OHUSGS gauge | 58°F15°C | 765 ft³/s | 4.27 ft | 19 hrs ago |
| Mahoning River at Lowellville OHUSGS gauge | 58°F14°C | 902 ft³/s | 3.27 ft | 19 hrs ago |
| Mahoning River near U.S. Route 422 at Warren OHUSGS gauge | 58°F14°C | — | — | 19 hrs ago |
| Indian Lake at Russells Point OHUSGS gauge | 57°F14°C | — | — | 20 hrs ago |
| Mahoning River above West Ave at Youngstown OHUSGS gauge | 57°F14°C | 737 ft³/s | 3.88 ft | 19 hrs ago |
| Maumee River at Antwerp OHUSGS gauge | 56°F13°C | 447 ft³/s | 6.68 ft | 20 hrs ago |
| Maumee River at Waterville OHUSGS gauge | 56°F13°C | 1,000 ft³/s | 2.36 ft | 20 hrs ago |
| Great Miami River at Troy OHUSGS gauge | 55°F13°C | 337 ft³/s | 2.74 ft | 19 hrs ago |
| Sandusky River near Fremont OHUSGS gauge | 55°F13°C | 69 ft³/s | 0.99 ft | 19 hrs ago |
| Mahoning River at Alliance OHUSGS gauge | 55°F13°C | — | 3.69 ft | 20 hrs ago |
| Cuyahoga River at Jaite OHUSGS gauge | 54°F12°C | 260 ft³/s | 2.43 ft | 19 hrs ago |
| Cuyahoga River at Independence OHUSGS gauge | 54°F12°C | 350 ft³/s | 2.88 ft | 19 hrs ago |
| Stillwater River at Pleasant Hill OHUSGS gauge | 54°F12°C | 141 ft³/s | 1.65 ft | 19 hrs ago |
| Big Darby Creek above Georgesville OHUSGS gauge | 53°F12°C | — | — | 20 hrs ago |
| Scioto River near Prospect OHUSGS gauge | 53°F12°C | 65 ft³/s | 1.52 ft | 20 hrs ago |
| McGuire Creek above Leesville Lake OHUSGS gauge | 53°F12°C | — | 3.88 ft | 19 hrs ago |
| Raccoon Creek near Granville OHUSGS gauge | 53°F11°C | 19 ft³/s | 2.96 ft | 20 hrs ago |
| Grand River near Painesville OHUSGS gauge | 52°F11°C | 30 ft³/s | 1.63 ft | 20 hrs ago |
| Indian Fork at Dellroy OHUSGS gauge | 52°F11°C | — | 6.74 ft | 19 hrs ago |
| Shade River near Chester OHUSGS gauge | 52°F11°C | 53 ft³/s | 5.16 ft | 19 hrs ago |
| South Fork above Senecaville Lake OHUSGS gauge | 51°F11°C | — | 4.03 ft | 19 hrs ago |
| Clover Groff Ditch below Alton OHUSGS gauge | 51°F11°C | 3 ft³/s | 3.07 ft | 20 hrs ago |
| Seneca Fork above Senecaville Lake OHUSGS gauge | 51°F11°C | — | 5.80 ft | 19 hrs ago |
| Big Walnut Creek at Sunbury OHUSGS gauge | 51°F11°C | 8 ft³/s | 4.56 ft | 19 hrs ago |
| Huron River at Milan OHUSGS gauge | 51°F10°C | 70 ft³/s | 6.21 ft | 19 hrs ago |
| Little Miami River near Oldtown OHUSGS gauge | 51°F10°C | 72 ft³/s | 1.60 ft | 19 hrs ago |
| Pymatuning Creek at Kinsman OHUSGS gauge | 50°F10°C | — | 4.70 ft | 19 hrs ago |
| Stillwater Creek above Piedmont Lake OHUSGS gauge | 50°F10°C | — | 1.50 ft | 19 hrs ago |
| Beaver Creek above Senecaville Lake OHUSGS gauge | 50°F10°C | — | 4.65 ft | 19 hrs ago |
| Brushy Fork above Clendening Lake OHUSGS gauge | 49°F9°C | — | 1.79 ft | 19 hrs ago |
| Clear Fork above Tappan Lake OHUSGS gauge | 49°F9°C | — | 1.19 ft | 19 hrs ago |
| Mosquito Creek near Greene Center OHUSGS gauge | 48°F9°C | 3 ft³/s | 4.46 ft | 19 hrs ago |
| West Branch Mahoning River near Ravenna OHUSGS gauge | 48°F9°C | 8 ft³/s | 1.79 ft | 20 hrs ago |
Station links open the official monitoring page with charts and history.
About these readings
Readings come from USGS real-time monitoring stations — 56 sensors are currently reporting a water temperature in Ohio. Each figure is a point measurement at one sensor, usually on a river or stream — it doesn’t describe a whole lake or shoreline, and coverage varies across the state. Data is provisional and can be revised by the USGS.
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Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.