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Official National Weather Service (NWS) point forecast and real-time wind conditions for Lake Wilhelm (Pennsylvania). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 64°F · Low 54°F
Peak gusts: 20 mph · Lake surface chop expected
Humidity: 66% · Barometer: 29.97 inHg
USGS water monitoring available for Lake Wilhelm.
Good for boating (85/100), from 3 available inputs. Supporting this: No active official alerts for this lake. Wind 13 mph from the southeast. Not available from a verified source for this lake: gusts, visibility and conditions, verified water access. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.
Good for fishing (75/100), from 5 available inputs. Supporting this: Wind 13 mph from the southeast. 20% chance of precipitation. 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.
Good for kayaking (84/100), from 4 available inputs. Supporting this: No active official alerts for this lake. Wind 13 mph from the southeast. Not available from a verified source for this lake: gusts. Confidence is moderate (78%) because some inputs are unavailable or older than ideal.
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. 20% chance of precipitation. Working against it: Air temperature 58°F. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 11 PM | 58°F | 13 mph | SE | — | 20% | Slight Chance Rain Showers |
| 12 AM | 57°F | 13 mph | SE | — | 19% | Slight Chance Rain Showers |
| 1 AM | 57°F | 14 mph | SE | — | 18% | Slight Chance Rain Showers |
| 2 AM | 56°F | 14 mph | SE | — | 26% | Chance Rain Showers |
| 3 AM | 55°F | 15 mph | SE | — | 34% | Chance Rain Showers |
| 4 AM | 55°F | 16 mph | SE | — | 42% | Chance Rain Showers |
| 5 AM | 55°F | 16 mph | SE | — | 50% | Chance Rain Showers |
| 6 AM | 54°F | 17 mph | SE | — | 61% | Rain Showers Likely |
| 7 AM | 54°F | 17 mph | SE | — | 70% | Rain Showers Likely |
| 8 AM | 54°F | 17 mph | SE | — | 95% | Rain Showers |
| 9 AM | 55°F | 17 mph | E | — | 90% | Rain Showers |
| 10 AM | 57°F | 17 mph | SE | — | 80% | Rain Showers |
| 11 AM | 58°F | 17 mph | SE | — | 88% | Rain Showers |
| 12 PM | 59°F | 17 mph | SE | — | 64% | Rain Showers Likely |
| 1 PM | 61°F | 16 mph | SE | — | 54% | Chance Rain Showers |
| 2 PM | 62°F | 15 mph | SE | — | 59% | Rain Showers Likely |
| 3 PM | 63°F | 14 mph | SE | — | 52% | Chance Rain Showers |
| 4 PM | 64°F | 14 mph | SE | — | 38% | Chance Rain Showers |
| 5 PM | 63°F | 12 mph | E | — | 32% | Chance Rain Showers |
| 6 PM | 62°F | 12 mph | E | — | 35% | Chance Rain Showers |
| 7 PM | 61°F | 9 mph | E | — | 37% | Chance Rain Showers |
| 8 PM | 60°F | 6 mph | E | — | 20% | Slight Chance Rain Showers |
| 9 PM | 59°F | 5 mph | NE | — | 19% | Slight Chance Rain Showers |
| 10 PM | 59°F | 3 mph | NE | — | 18% | Slight Chance Rain Showers |
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.
Mostly cloudy, with a high near 71. Southeast wind around 12 mph.
Rain showers likely after 2am. Mostly cloudy, with a low around 54. Southeast wind 12 to 16 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Rain showers likely after 2am. Mostly cloudy, with a low around 54. Southeast wind 12 to 16 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers. Mostly cloudy, with a low around 54. Southeast wind 13 to 16 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers. Mostly cloudy, with a low around 54. Southeast wind 13 to 16 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Rain showers. Cloudy, with a high near 64. Southeast wind 12 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of rain showers before midnight, then patchy fog between 1am and 2am. Mostly cloudy, with a low around 56. Northeast wind 2 to 12 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Partly sunny, with a high near 71. West wind around 7 mph.
Partly cloudy, with a low around 59. Southwest wind 5 to 9 mph.
A slight chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
A chance of rain showers after 8am. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Lake Wilhelm currently reports 57°F with wind velocity near 8 mph from the SE. 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 Lake Wilhelm 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 PBZ) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Lake Wilhelm 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 Lake Wilhelm Water Level & Temperature page.
View Lake Wilhelm Water Level & Temperature →