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Official National Weather Service (NWS) point forecast and real-time wind conditions for Diablo Lake (Washington). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 51°F · Low 41°F
Peak gusts: 22 mph · Lake surface chop expected
Humidity: 87% · Barometer: 30.05 inHg
USGS water monitoring available for Diablo Lake.
Poor for boating (51/100), from 4 available inputs. Supporting this: No active official alerts for this lake. Working against it: Gusts to 38 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.
Fair for fishing (67/100), from 5 available inputs. Supporting this: Morning hours (09:00 local). Sky is mostly cloudy (61% cloud cover). 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.
Poor for kayaking (49/100), from 5 available inputs. Supporting this: No active official alerts for this lake. Working against it: Gusts to 38 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. Working against it: Air temperature 50°F. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 9 AM | 50°F | 21 mph | W | ⚡ 38 mph | 41% | Chance Light Rain |
| 10 AM | 50°F | 23 mph | W | ⚡ 39 mph | 18% | Slight Chance Light Rain |
| 11 AM | 50°F | 23 mph | W | ⚡ 39 mph | 29% | Chance Light Rain |
| 12 PM | 50°F | 22 mph | W | ⚡ 37 mph | 22% | Slight Chance Light Rain |
| 1 PM | 50°F | 18 mph | W | ⚡ 31 mph | 22% | Slight Chance Light Rain |
| 2 PM | 51°F | 15 mph | W | ⚡ 27 mph | 30% | Chance Light Rain |
| 3 PM | 50°F | 15 mph | W | ⚡ 27 mph | 26% | Chance Light Rain |
| 4 PM | 49°F | 14 mph | W | ⚡ 25 mph | 22% | Slight Chance Light Rain |
| 5 PM | 48°F | 13 mph | W | ⚡ 24 mph | 12% | Mostly Sunny |
| 6 PM | 46°F | 12 mph | W | ⚡ 22 mph | 11% | Partly Cloudy |
| 7 PM | 44°F | 9 mph | W | ⚡ 18 mph | 11% | Partly Cloudy |
| 8 PM | 44°F | 9 mph | W | ⚡ 17 mph | 18% | Slight Chance Light Rain |
| 9 PM | 43°F | 8 mph | W | ⚡ 16 mph | 9% | Mostly Cloudy |
| 10 PM | 43°F | 7 mph | W | ⚡ 15 mph | 7% | Partly Cloudy |
| 11 PM | 42°F | 7 mph | W | ⚡ 14 mph | 4% | Partly Cloudy |
| 12 AM | 42°F | 6 mph | W | ⚡ 12 mph | 8% | Partly Cloudy |
| 1 AM | 42°F | 5 mph | W | ⚡ 9 mph | 11% | Mostly Cloudy |
| 2 AM | 41°F | 3 mph | W | ⚡ 8 mph | 12% | Mostly Cloudy |
| 3 AM | 41°F | 3 mph | W | ⚡ 6 mph | 13% | Mostly Cloudy |
| 4 AM | 41°F | 3 mph | W | ⚡ 6 mph | 15% | Slight Chance Light Rain |
| 5 AM | 41°F | 3 mph | NW | ⚡ 7 mph | 12% | Mostly Cloudy |
| 6 AM | 41°F | 3 mph | NW | ⚡ 7 mph | 10% | Mostly Cloudy |
| 7 AM | 41°F | 3 mph | NW | ⚡ 7 mph | 35% | Chance Rain And Snow |
| 8 AM | 40°F | 6 mph | NE | ⚡ 17 mph | 31% | Chance Rain And Snow |
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.
Rain before 5pm. Partly sunny. High near 52, with temperatures falling to around 48 in the afternoon. West southwest wind 13 to 23 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of rain between 8pm and 5am. Mostly cloudy, with a low around 40. West southwest wind 3 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
A chance of rain and snow between 7am and 9am. Mostly sunny, with a high near 48. North wind 3 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Partly cloudy, with a low around 37. Northeast wind 10 to 17 mph, with gusts as high as 40 mph.
Sunny, with a high near 54. North northeast wind 8 to 15 mph, with gusts as high as 28 mph.
Clear, with a low around 36.
Sunny, with a high near 57.
Mostly clear, with a low around 40.
A slight chance of rain after 5pm. Mostly sunny, with a high near 54.
A chance of rain. Mostly cloudy, with a low around 44.
A chance of rain. Partly sunny, with a high near 53.
A slight chance of rain before 11pm. Partly cloudy, with a low around 42.
Mostly sunny, with a high near 59.
Partly cloudy, with a low around 44.
Diablo Lake currently reports 56°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 Diablo 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 SEW) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Diablo 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 Diablo Lake Water Level & Temperature page.
View Diablo Lake Water Level & Temperature →