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Official National Weather Service (NWS) point forecast and real-time wind conditions for Green Lake (Wisconsin). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 79°F · Low 58°F
Peak gusts: 27 mph · Lake surface chop expected
Humidity: 45% · Barometer: 30.01 inHg
USGS water monitoring available for Green Lake.
Fair for boating (73/100), from 4 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. 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 (80/100), from 5 available inputs. Supporting this: 0% chance of precipitation. Overnight hours (22:00 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.
Fair for kayaking (72/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. 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. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 10 PM | 69°F | 15 mph | S | ⚡ 25 mph | 0% | Mostly Clear |
| 11 PM | 67°F | 15 mph | S | ⚡ 24 mph | 0% | Clear |
| 12 AM | 65°F | 15 mph | S | ⚡ 24 mph | 0% | Clear |
| 1 AM | 64°F | 15 mph | S | ⚡ 23 mph | 0% | Clear |
| 2 AM | 63°F | 15 mph | S | ⚡ 22 mph | 0% | Clear |
| 3 AM | 62°F | 15 mph | S | ⚡ 21 mph | 0% | Clear |
| 4 AM | 61°F | 10 mph | S | ⚡ 20 mph | 0% | Clear |
| 5 AM | 60°F | 10 mph | S | ⚡ 18 mph | 0% | Clear |
| 6 AM | 59°F | 10 mph | S | ⚡ 18 mph | 0% | Sunny |
| 7 AM | 58°F | 10 mph | S | ⚡ 18 mph | 0% | Sunny |
| 8 AM | 59°F | 10 mph | S | ⚡ 20 mph | 0% | Sunny |
| 9 AM | 62°F | 15 mph | S | ⚡ 20 mph | 0% | Sunny |
| 10 AM | 65°F | 15 mph | S | ⚡ 21 mph | 0% | Sunny |
| 11 AM | 69°F | 15 mph | S | ⚡ 21 mph | 0% | Sunny |
| 12 PM | 73°F | 10 mph | S | ⚡ 21 mph | 0% | Sunny |
| 1 PM | 76°F | 10 mph | S | ⚡ 21 mph | 0% | Sunny |
| 2 PM | 78°F | 10 mph | S | ⚡ 20 mph | 0% | Sunny |
| 3 PM | 79°F | 10 mph | S | ⚡ 20 mph | 0% | Sunny |
| 4 PM | 79°F | 10 mph | S | ⚡ 18 mph | 0% | Sunny |
| 5 PM | 77°F | 10 mph | S | ⚡ 17 mph | 0% | Sunny |
| 6 PM | 74°F | 10 mph | S | ⚡ 16 mph | 0% | Mostly Clear |
| 7 PM | 71°F | 10 mph | S | ⚡ 16 mph | 0% | Partly Cloudy |
| 8 PM | 68°F | 10 mph | S | ⚡ 16 mph | 0% | Mostly Clear |
| 9 PM | 66°F | 10 mph | S | ⚡ 17 mph | 0% | Mostly Clear |
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 82. South wind 15 to 20 mph, with gusts as high as 30 mph.
Clear, with a low around 58. South wind 10 to 15 mph, with gusts as high as 30 mph.
Clear, with a low around 58. South wind 10 to 15 mph, with gusts as high as 30 mph.
Sunny, with a high near 79. South wind 10 to 15 mph.
Partly cloudy, with a low around 62. South wind around 10 mph.
Mostly sunny, with a high near 81. Southwest wind around 10 mph.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 60. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 70. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 49. North wind around 5 mph.
Mostly sunny, with a high near 64. Northeast wind around 5 mph.
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 46. Chance of precipitation is 20%.
A chance of rain showers. Partly sunny, with a high near 64. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.
A slight chance of rain showers before 1pm. Partly sunny, with a high near 59. Chance of precipitation is 20%.
Green Lake currently reports 69°F with wind velocity near 18 mph from the S. 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 Green 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 MKX) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Green 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 Green Lake Water Level & Temperature page.
View Green Lake Water Level & Temperature →