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Official National Weather Service (NWS) point forecast and real-time wind conditions for Lake Nockamixon (Pennsylvania). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 69°F · Low 51°F
Peak gusts: 7 mph · Lake surface chop expected
Humidity: 70% · Barometer: 29.82 inHg
Live hydrological sensor reading for Lake Nockamixon.
Excellent for boating (97/100), from 4 available inputs. Supporting this: Wind 5 mph from the west. 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.
Good for fishing (88/100), from 6 available inputs. Supporting this: Measured water temperature 65°F. Provisional data. Wind 5 mph from the west. Not available from a verified source for this lake: pressure trend. Confidence is moderate (73%) because some inputs are unavailable or older than ideal.
Good for kayaking (80/100), from 5 available inputs. Supporting this: Wind 5 mph from the west. Gusts to 8 mph. Combined air and water temperature is 115°F (below the 120°F safety guideline). Thermal protection recommended for paddle craft. Confidence is high (90%).
Fair for swimming (73/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Air temperature 50°F. Confidence is moderate (77%) because some inputs are unavailable or older than ideal.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 10 AM | 59°F | 10 mph | W | ⚡ 15 mph | 0% | Sunny |
| 11 AM | 63°F | 10 mph | W | ⚡ 18 mph | 0% | Sunny |
| 12 PM | 65°F | 10 mph | W | ⚡ 21 mph | 0% | Sunny |
| 1 PM | 67°F | 15 mph | W | ⚡ 23 mph | 0% | Sunny |
| 2 PM | 68°F | 15 mph | NW | ⚡ 24 mph | 0% | Sunny |
| 3 PM | 68°F | 10 mph | NW | ⚡ 22 mph | 0% | Mostly Sunny |
| 4 PM | 69°F | 10 mph | NW | ⚡ 18 mph | 0% | Mostly Sunny |
| 5 PM | 67°F | 10 mph | NW | ⚡ 16 mph | 0% | Mostly Sunny |
| 6 PM | 65°F | 5 mph | W | ⚡ 13 mph | 0% | Partly Cloudy |
| 7 PM | 62°F | 5 mph | W | ⚡ 13 mph | 0% | Mostly Cloudy |
| 8 PM | 58°F | 5 mph | W | ⚡ 10 mph | 0% | Mostly Cloudy |
| 9 PM | 57°F | 5 mph | W | ⚡ 8 mph | 0% | Mostly Cloudy |
| 10 PM | 55°F | 5 mph | W | ⚡ 7 mph | 0% | Mostly Cloudy |
| 11 PM | 54°F | 5 mph | W | ⚡ 6 mph | 0% | Mostly Cloudy |
| 12 AM | 53°F | 5 mph | W | ⚡ 6 mph | 0% | Mostly Cloudy |
| 1 AM | 52°F | 5 mph | NW | ⚡ 7 mph | 0% | Mostly Cloudy |
| 2 AM | 51°F | 5 mph | NW | ⚡ 8 mph | 0% | Mostly Cloudy |
| 3 AM | 51°F | 5 mph | NW | ⚡ 7 mph | 0% | Partly Cloudy |
| 4 AM | 49°F | 5 mph | NW | ⚡ 7 mph | 0% | Partly Cloudy |
| 5 AM | 49°F | 5 mph | N | ⚡ 7 mph | 0% | Partly Cloudy |
| 6 AM | 48°F | 5 mph | N | ⚡ 8 mph | 0% | Partly Sunny |
| 7 AM | 47°F | 5 mph | N | ⚡ 8 mph | 0% | Partly Sunny |
| 8 AM | 49°F | 5 mph | N | ⚡ 10 mph | 0% | Partly Sunny |
| 9 AM | 52°F | 5 mph | N | ⚡ 8 mph | 0% | Partly Sunny |
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 70. West wind 10 to 15 mph.
Mostly cloudy, with a low around 47. Northwest wind around 5 mph.
Partly sunny, with a high near 70. Northeast wind around 5 mph.
Mostly cloudy, with a low around 55. East wind around 5 mph.
Rain showers after 8am. Cloudy, with a high near 64. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Rain showers. Cloudy, with a low around 59. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of rain showers before 8am. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.
Partly cloudy, with a low around 57.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 73.
A slight chance of rain showers before 2am. Partly cloudy, with a low around 54.
Mostly sunny, with a high near 67.
Mostly clear, with a low around 49.
Mostly sunny, with a high near 64.
Partly cloudy, with a low around 51.
Lake Nockamixon currently reports 48°F with wind velocity near 5 mph from the W. 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 Nockamixon 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 PHI) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Lake Nockamixon 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 Nockamixon Water Level & Temperature page.
View Lake Nockamixon Water Level & Temperature →