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Official National Weather Service (NWS) point forecast and real-time wind conditions for Lake Cushman (Washington). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Frost Advisory issued October 11 at 7:34AM PDT until October 12 at 8:00AM PDT by NWS Seattle WA
Today: High 61°F · Low 40°F
Peak gusts: 5 mph · Lake surface chop expected
Humidity: 74% · Barometer: 29.90 inHg
Live hydrological sensor reading for Lake Cushman.
Frost Advisory issued October 11 at 7:34AM PDT until October 12 at 8:00AM PDT by NWS Seattle WA
Good for boating (87/100), from 4 available inputs. Supporting this: Wind 6 mph from the northeast. Gusts to 6 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 (79/100), from 6 available inputs. Supporting this: Wind 6 mph from the northeast. Morning hours (08:00 local). Working against it: Air temperature 39°F. Not available from a verified source for this lake: pressure trend. Confidence is moderate (82%) because some inputs are unavailable or older than ideal.
Fair for kayaking (60/100), from 5 available inputs. Supporting this: Wind 6 mph from the northeast. Gusts to 6 mph. Working against it: Air temperature 39°F. Water temperature is 45°F (combined air+water: 84°F). Cold shock hazard: sudden immersion below 55°F poses serious risk. Confidence is high (90%).
Very Poor / Avoid for swimming (2/100), from 5 available inputs. Supporting this: 1% chance of precipitation. Wind 6 mph from the northeast. Working against it: Measured water temperature 45°F from a representative gauge 7.8 mi away. Provisional data. Immersion shock hazard: water below 55°F poses severe cold shock and rapid hypothermia risk. Air temperature 39°F. Water temperature is 45°F (below 55°F). Severe cold shock and hypothermia hazard upon immersion. Confidence is high (87%).
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 10 AM | 48°F | 1 mph | E | ⚡ 4 mph | 0% | Sunny |
| 11 AM | 53°F | 1 mph | E | ⚡ 4 mph | 0% | Sunny |
| 12 PM | 56°F | 2 mph | E | ⚡ 4 mph | 0% | Sunny |
| 1 PM | 58°F | 2 mph | E | ⚡ 5 mph | 0% | Sunny |
| 2 PM | 60°F | 3 mph | E | ⚡ 6 mph | 0% | Sunny |
| 3 PM | 60°F | 3 mph | E | ⚡ 6 mph | 0% | Sunny |
| 4 PM | 61°F | 3 mph | E | ⚡ 6 mph | 0% | Sunny |
| 5 PM | 57°F | 3 mph | E | ⚡ 5 mph | 0% | Sunny |
| 6 PM | 54°F | 3 mph | E | ⚡ 4 mph | 0% | Clear |
| 7 PM | 51°F | 2 mph | N | ⚡ 5 mph | 0% | Clear |
| 8 PM | 45°F | 3 mph | NW | ⚡ 5 mph | 0% | Clear |
| 9 PM | 43°F | 5 mph | N | ⚡ 7 mph | 0% | Clear |
| 10 PM | 42°F | 6 mph | NW | ⚡ 8 mph | 0% | Clear |
| 11 PM | 42°F | 5 mph | NW | ⚡ 7 mph | 0% | Clear |
| 12 AM | 41°F | 5 mph | NW | ⚡ 7 mph | 0% | Clear |
| 1 AM | 41°F | 3 mph | NW | ⚡ 6 mph | 0% | Clear |
| 2 AM | 40°F | 3 mph | NW | ⚡ 6 mph | 0% | Clear |
| 3 AM | 40°F | 2 mph | NW | ⚡ 5 mph | 0% | Clear |
| 4 AM | 40°F | 2 mph | NW | ⚡ 5 mph | 0% | Clear |
| 5 AM | 39°F | 2 mph | N | ⚡ 5 mph | 0% | Mostly Clear |
| 6 AM | 39°F | 2 mph | N | ⚡ 5 mph | 0% | Sunny |
| 7 AM | 39°F | 2 mph | N | ⚡ 5 mph | 0% | Sunny |
| 8 AM | 38°F | 2 mph | NW | ⚡ 4 mph | 0% | Sunny |
| 9 AM | 42°F | 2 mph | NW | ⚡ 4 mph | 0% | 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. High near 61, with temperatures falling to around 57 in the afternoon. East northeast wind 1 to 6 mph.
Clear. Low around 37, with temperatures rising to around 39 overnight. North northwest wind 2 to 6 mph.
Sunny. High near 62, with temperatures falling to around 58 in the afternoon. South wind around 5 mph.
Mostly clear, with a low around 41. West southwest wind 1 to 5 mph.
Mostly sunny, with a high near 62. West southwest wind around 3 mph.
Mostly cloudy, with a low around 45.
Partly sunny, with a high near 64.
Mostly cloudy, with a low around 47.
Mostly sunny, with a high near 66.
Mostly clear, with a low around 49.
Mostly sunny, with a high near 67.
A chance of rain after 11pm. Partly cloudy, with a low around 48.
A slight chance of rain before 5pm. Mostly sunny, with a high near 60.
Partly cloudy, with a low around 43.
Lake Cushman currently reports 41°F with wind velocity near 3 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 Lake Cushman 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 SEW) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Lake Cushman 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 Cushman Water Level & Temperature page.
View Lake Cushman Water Level & Temperature →