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Official National Weather Service (NWS) point forecast and real-time wind conditions for Cowan Lake (Ohio). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 77°F · Low 48°F
Peak gusts: 8 mph · Lake surface chop expected
Humidity: 79% · Barometer: 30.20 inHg
USGS water monitoring available for Cowan Lake.
Excellent for boating (98/100), from 4 available inputs. Supporting this: Wind 3 mph from the east. Gusts to 8 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.
Excellent for fishing (90/100), from 5 available inputs. Supporting this: Wind 3 mph from the east. Morning hours (08:00 local). Not available from a verified source for this lake: pressure trend, water temperature. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.
Excellent for kayaking (96/100), from 5 available inputs. Supporting this: Wind 3 mph from the east. Gusts to 8 mph. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Air temperature 48°F. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 8 AM | 48°F | 3 mph | E | ⚡ 8 mph | 0% | Sunny |
| 9 AM | 55°F | 5 mph | E | ⚡ 8 mph | 1% | Sunny |
| 10 AM | 61°F | 5 mph | SE | ⚡ 8 mph | 0% | Sunny |
| 11 AM | 66°F | 5 mph | SE | ⚡ 9 mph | 1% | Sunny |
| 12 PM | 70°F | 5 mph | S | ⚡ 8 mph | 1% | Sunny |
| 1 PM | 73°F | 5 mph | S | ⚡ 7 mph | 1% | Sunny |
| 2 PM | 75°F | 5 mph | S | ⚡ 7 mph | 2% | Sunny |
| 3 PM | 76°F | 5 mph | S | ⚡ 7 mph | 2% | Sunny |
| 4 PM | 76°F | 5 mph | S | ⚡ 7 mph | 2% | Sunny |
| 5 PM | 77°F | 5 mph | SE | ⚡ 8 mph | 2% | Mostly Sunny |
| 6 PM | 76°F | 5 mph | SE | ⚡ 8 mph | 2% | Mostly Cloudy |
| 7 PM | 72°F | 6 mph | E | ⚡ 9 mph | 2% | Mostly Cloudy |
| 8 PM | 68°F | 7 mph | E | ⚡ 13 mph | 2% | Mostly Cloudy |
| 9 PM | 63°F | 7 mph | SE | ⚡ 14 mph | 2% | Mostly Cloudy |
| 10 PM | 62°F | 8 mph | SE | ⚡ 15 mph | 1% | Mostly Cloudy |
| 11 PM | 61°F | 8 mph | SE | ⚡ 16 mph | 2% | Mostly Cloudy |
| 12 AM | 61°F | 8 mph | SE | ⚡ 16 mph | 2% | Mostly Cloudy |
| 1 AM | 60°F | 7 mph | SE | ⚡ 16 mph | 2% | Mostly Cloudy |
| 2 AM | 60°F | 7 mph | SE | ⚡ 16 mph | 1% | Mostly Cloudy |
| 3 AM | 59°F | 7 mph | SE | ⚡ 16 mph | 1% | Mostly Cloudy |
| 4 AM | 59°F | 8 mph | SE | ⚡ 16 mph | 1% | Mostly Cloudy |
| 5 AM | 58°F | 8 mph | SE | ⚡ 17 mph | 1% | Mostly Cloudy |
| 6 AM | 58°F | 9 mph | SE | ⚡ 18 mph | 1% | Mostly Cloudy |
| 7 AM | 58°F | 10 mph | E | ⚡ 18 mph | 1% | Mostly Cloudy |
Mirror-like to gentle rippled water. Optimal conditions for paddleboarding, kayaking, swimming, and beginner water skiing or wakeboarding.
Pleasant breeze with small wavelets. Great for sailing, pleasure cruising, pontoon boats, and trolling for trout and bass.
Moderate waves with whitecaps likely. Requires skilled boat handling; kayaks, canoes, and stand-up paddleboards should stay close to sheltered bays.
Steep waves, cold spray, and hazardous open water. Avoid small craft voyages. Always check official National Weather Service lake wind advisories.
Sunny, with a high near 78. Southeast wind around 5 mph.
Mostly cloudy, with a low around 58. Southeast wind 5 to 8 mph.
A chance of rain showers after 5pm. Mostly cloudy, with a high near 74. Southeast wind 9 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Rain showers before 11pm, then showers and thunderstorms. Cloudy, with a low around 57. East wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms. Cloudy, with a high near 72. East wind 7 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 61.
A slight chance of rain showers between 8am and 2pm. Sunny, with a high near 79.
Mostly clear, with a low around 55.
Mostly sunny, with a high near 73.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 53.
A slight chance of rain showers. Mostly sunny, with a high near 76.
A chance of rain showers. Partly cloudy, with a low around 57.
Cowan Lake currently reports 45°F with wind velocity near 6 mph from the E. Atmospheric forecasts and 24-hour hour-by-hour wind timelines are updated hourly from the National Weather Service gridpoint matching the lake's coordinates.
At Cowan Lake and surrounding mountain valleys, diurnal heating of the surrounding terrain causes strong thermal pressure differentials known locally as afternoon breezes (such as the Washoe Zephyr at Lake Tahoe). Wind speeds typically peak between 1:00 PM and 5:00 PM before calming near sunset.
For stand-up paddleboarding (SUP), canoeing, and light kayaks, winds under 7 mph (light breeze) offer the safest, glassiest surface conditions. Between 8–14 mph, small wavelets develop, suitable for sailboats and powerboats. Winds exceeding 15 mph create steep whitecaps and rapid drift; winds over 21 mph warrant small craft warnings.
All weather and wind telemetry is fetched directly from the National Weather Service (NOAA - WFO ILN) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Cowan Lake without artificial smoothing or third-party estimates.
Yes. Live hydrological sensor readings, 30-day elevation histories, full-pool benchmarks, and USGS station provenance are available on our dedicated Cowan Lake Water Level & Temperature page.
View Cowan Lake Water Level & Temperature →