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Seneca Lake is a reservoir located in Ohio. The water surface spans about 3,550 acres, making it a mid-sized body of water. If you are planning a trip, Clendening Lake, Dillon Lake, and Burr Oak Lake are also nearby. Below you will find an hourly and 7-day forecast, wind and gust outlook, and activity scores for boating, paddling, and swimming. Check the hourly forecast and activity outlook below before heading out to Seneca Lake.
Updated
No active alerts for this lake as of the last check (Oct 9, 11:57 AM EDT). Alerts are re-checked automatically; see the official source for updates.
Best excellent fishing window, averaging 93/100 across these hours. Measured water temperature 61°F from a representative gauge 7.9 mi away. Provisional data. Wind 6 mph from the southeast. Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 64° | 68° | 70° | 71° | 72° | 73° | 72° | 70° | 65° | 60° | 57° | 56° | 56° | 55° | 54° | 54° | 52° | 52° | 52° | 52° | 52° | 53° | 56° | 62° |
| Wind (kts) | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 |
| Direction | SE | S | SW | W | W | W | W | S | SE | SE | SE | SE | SE | SE | E | E | E | E | E | E | E | E | E | E |
| Gusts (kts) | 4 | 4 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 11 | 11 | 10 |
| Precip % | 0% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 2% | 2% | 2% | 2% | 2% | 2% | 2% | 2% | 2% | 2% | 2% | 2% | 0% | 0% | 0% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 11 AM EDT | 64°F | 1 mph SE (135°) | 5 mph | 0% | 5% | Sunny |
| Fri, 12 PM EDT | 68°F | 1 mph S (180°) | 5 mph | 1% | 4% | Sunny |
| Fri, 1 PM EDT | 70°F | 2 mph SW (225°) | 6 mph | 1% | 4% | Sunny |
| Fri, 2 PM EDT | 71°F | 2 mph W (270°) | 5 mph | 1% | 12% | Sunny |
| Fri, 3 PM EDT | 72°F | 2 mph W (270°) | 5 mph | 1% | 14% | Sunny |
| Fri, 4 PM EDT | 73°F | 1 mph W (270°) | 5 mph | 1% | 12% | Sunny |
| Fri, 5 PM EDT | 72°F | 1 mph W (270°) | 4 mph | 1% | 32% | Mostly Sunny |
| Fri, 6 PM EDT | 70°F | 1 mph S (180°) | 4 mph | 1% | 45% | Partly Cloudy |
| Fri, 7 PM EDT | 65°F | 1 mph SE (135°) | 4 mph | 1% | 59% | Mostly Cloudy |
| Fri, 8 PM EDT | 60°F | 1 mph SE (135°) | 5 mph | 2% | 68% | Mostly Cloudy |
| Fri, 9 PM EDT | 57°F | 1 mph SE (135°) | 5 mph | 2% | 68% | Mostly Cloudy |
| Fri, 10 PM EDT | 56°F | 1 mph SE (135°) | 6 mph | 2% | 73% | Mostly Cloudy |
| Fri, 11 PM EDT | 56°F | 2 mph SE (135°) | 7 mph | 2% | 86% | Mostly Cloudy |
| Sat, 12 AM EDT | 55°F | 2 mph SE (135°) | 7 mph | 2% | 65% | Mostly Cloudy |
| Sat, 1 AM EDT | 54°F | 2 mph E (90°) | 8 mph | 2% | 81% | Mostly Cloudy |
| Sat, 2 AM EDT | 54°F | 2 mph E (90°) | 8 mph | 2% | 57% | Mostly Cloudy |
| Sat, 3 AM EDT | 52°F | 2 mph E (90°) | 9 mph | 2% | 72% | Mostly Cloudy |
| Sat, 4 AM EDT | 52°F | 2 mph E (90°) | 10 mph | 2% | 74% | Mostly Cloudy |
| Sat, 5 AM EDT | 52°F | 3 mph E (90°) | 10 mph | 2% | 83% | Mostly Cloudy |
| Sat, 6 AM EDT | 52°F | 3 mph E (90°) | 12 mph | 2% | 73% | Mostly Cloudy |
| Sat, 7 AM EDT | 52°F | 3 mph E (90°) | 12 mph | 2% | 78% | Mostly Cloudy |
| Sat, 8 AM EDT | 53°F | 3 mph E (90°) | 13 mph | 0% | 68% | Partly Sunny |
| Sat, 9 AM EDT | 56°F | 5 mph E (90°) | 13 mph | 0% | 75% | Mostly Cloudy |
| Sat, 10 AM EDT | 62°F | 5 mph E (90°) | 12 mph | 0% | 63% | Partly Sunny |
| Sat, 11 AM EDT | 66°F | 5 mph SE (135°) | 12 mph | 0% | 75% | Mostly Cloudy |
Official National Weather Service hourly forecast. Showing 10 of 25 hours. Wind arrows point the way the wind is blowing; the compass point and degrees show where it comes from.
| Period | Today October 9, 2026 | Tonight October 9, 2026 | Saturday October 10, 2026 | Saturday Night October 10, 2026 | Sunday October 11, 2026 | Sunday Night October 11, 2026 | Columbus Day October 12, 2026 | Monday Night October 12, 2026 | Tuesday October 13, 2026 | Tuesday Night October 13, 2026 | Wednesday October 14, 2026 | Wednesday Night October 14, 2026 | Thursday October 15, 2026 | Thursday Night October 15, 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 73° | 52° | 75° | 56° | 73° | 59° | 74° | 58° | 77° | 53° | 71° | 50° | 74° | 55° |
| Wind | S 2 mph | SE 3 mph | E 6 mph | E 6 to 9 mph | E 6 to 9 mph | N 5 mph | W 6 mph | SW 5 mph | SW 5 to 9 mph | NW 3 to 8 mph | N 6 mph | E 5 mph | SE 3 to 7 mph | S 7 mph |
| Gusts | 6 mph | 10 mph | 13 mph | 24 mph | 23 mph | 14 mph | 14 mph | 15 mph | 20 mph | 18 mph | 13 mph | 12 mph | 15 mph | 15 mph |
| Precip % | 1% | 2% | 2% | 92% | 99% | 82% | 7% | 15% | 31% | 29% | 15% | 11% | 18% | 23% |
| Forecast |
Seneca Fork above Senecaville Lake OH · Oct 9, 12:15 AM UTC
Good for fishing (88/100), from 6 available inputs. Supporting this: Measured water temperature 61°F from a representative gauge 7.9 mi away. Provisional data. Wind 1 mph from the southeast. Not available from a verified source for this lake: pressure trend. Confidence is moderate (72%) because some inputs are unavailable or older than ideal.
Excellent for boating (99/100), from 4 available inputs. Supporting this: Wind 1 mph from the southeast. Gusts to 5 mph. Not available from a verified source for this lake: visibility and conditions, verified water access. Confidence is moderate (84%) because some inputs are unavailable or older than ideal.
Fair for sailing (66/100), from 4 available inputs. Supporting this: Gusts are within 4 mph of sustained wind, so the breeze is steady. No active official alerts for this lake. Working against it: Wind 1 mph is light; expect limited sailing. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Good for kayaking (82/100), from 5 available inputs. Supporting this: Wind 1 mph from the southeast. Gusts to 5 mph. Combined air and water temperature is 111°F (below the 120°F safety guideline). Thermal protection recommended for paddle craft. Confidence is high (90%).
Surface water measured at 61°F. Air and water contrast evaluate recreational immersion comfort.
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Individual boat ramp GPS coordinates are maintained under the jurisdiction of OH Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Seneca Lake in OH is a popular freshwater reservoir known for its welcoming public recreation, scenic beauty, and dependable sport fishing. Multiple public access sites allow easy launching for trailered boats and personal watercraft. Park facilities and regional fisheries management are overseen by state and local natural resource agencies.
Valid freshwater sport fishing license issued by Ohio Division of Wildlife (ODNR) is required for anglers age 16+. Digital license on mobile is accepted.
Current motorized watercraft registration mandatory. Practice Clean, Drain & Dry protocols: drain all livewells and inspect props before launching. Life jackets required for all passengers.
Public shoreline and boating access managed by State & Local Authorities. Verify seasonal gate hours, launch fees, and parking rules before travel.
High-speed motorboating, pontoon cruising, wakeboarding, and water skiing across main channels. Target gamefish include Common Carp, Largemouth Bass, Black Crappie, Redear Sunfish. Morning hours typically provide optimal glassy conditions for kayak and stand-up paddleboard (SUP) touring.
Warm water temperatures, peak swimming, active watersports, and open full-service campgrounds. Highest weekly attendance; plan early arrivals on summer weekends.
Spring pre-spawn and fall feeding transitions create prime trophy angling conditions. Cooler air, lower boat traffic, and vibrant seasonal shoreline foliage.
Mild year-round outdoor climate. Uncrowded waters, active winter bass and crappie fishing, and open year-round boat launch access.
No external source rows are cited by the data currently shown on this page.
Updated
Scores are heuristics, not safety guarantees. LakeRadar scores summarize available conditions and are not a substitute for official warnings, local rules, or on-water judgment.
All telemetry for Seneca Lake is synchronized directly from authorized federal and state monitoring networks (USGS, NWS, NOAA, and state environmental authorities). Observations are strictly instrumented readings — unmonitored sensors are transparently disclosed rather than synthetic estimates.
Last source audit: Oct 9, 11:57 AM EDT