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Official National Weather Service (NWS) point forecast and real-time wind conditions for Diamond Valley Lake (California). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 92°F · Low 67°F
Peak gusts: 3 mph · Lake surface chop expected
Humidity: 34% · Barometer: 29.80 inHg
USGS water monitoring available for Diamond Valley Lake.
Excellent for boating (99/100), from 4 available inputs. Supporting this: Wind 0 mph from the east-southeast. 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.
Excellent for fishing (93/100), from 5 available inputs. Supporting this: Wind 0 mph from the east-southeast. Dawn hours (07:00 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.
Excellent for kayaking (99/100), from 5 available inputs. Supporting this: Wind 0 mph from the east-southeast. Gusts to 6 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. Wind 0 mph from the east-southeast. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 7 AM | 67°F | 0 mph | — | ⚡ 6 mph | 1% | Sunny |
| 8 AM | 70°F | 0 mph | — | ⚡ 6 mph | 1% | Sunny |
| 9 AM | 74°F | 0 mph | — | ⚡ 1 mph | 1% | Sunny |
| 10 AM | 78°F | 0 mph | — | ⚡ 7 mph | 1% | Sunny |
| 11 AM | 85°F | 5 mph | W | ⚡ 10 mph | 1% | Sunny |
| 12 PM | 88°F | 5 mph | W | ⚡ 12 mph | 1% | Sunny |
| 1 PM | 90°F | 5 mph | W | ⚡ 14 mph | 1% | Sunny |
| 2 PM | 91°F | 10 mph | SW | ⚡ 16 mph | 1% | Sunny |
| 3 PM | 92°F | 10 mph | SW | ⚡ 18 mph | 1% | Sunny |
| 4 PM | 91°F | 15 mph | SW | ⚡ 21 mph | 1% | Sunny |
| 5 PM | 89°F | 15 mph | SW | ⚡ 23 mph | 0% | Sunny |
| 6 PM | 85°F | 10 mph | S | ⚡ 20 mph | 0% | Clear |
| 7 PM | 78°F | 10 mph | S | ⚡ 15 mph | 0% | Clear |
| 8 PM | 76°F | 5 mph | S | ⚡ 9 mph | 0% | Clear |
| 9 PM | 74°F | 5 mph | S | ⚡ 8 mph | 0% | Clear |
| 10 PM | 72°F | 5 mph | S | ⚡ 8 mph | 0% | Clear |
| 11 PM | 70°F | 5 mph | S | ⚡ 8 mph | 1% | Mostly Clear |
| 12 AM | 69°F | 0 mph | — | ⚡ 7 mph | 1% | Mostly Clear |
| 1 AM | 68°F | 5 mph | S | ⚡ 7 mph | 1% | Mostly Clear |
| 2 AM | 68°F | 0 mph | — | ⚡ 7 mph | 1% | Mostly Cloudy |
| 3 AM | 67°F | 5 mph | S | ⚡ 8 mph | 1% | Mostly Cloudy |
| 4 AM | 66°F | 0 mph | — | ⚡ 6 mph | 1% | Mostly Cloudy |
| 5 AM | 66°F | 0 mph | — | ⚡ 7 mph | 0% | Cloudy |
| 6 AM | 65°F | 5 mph | S | ⚡ 8 mph | 0% | Cloudy |
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 93. Southwest wind 0 to 15 mph, with gusts as high as 25 mph.
Partly cloudy, with a low around 64. South wind 0 to 10 mph, with gusts as high as 20 mph.
A slight chance of rain showers after 5pm. Mostly cloudy, with a high near 82. South wind 0 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Rain showers likely. Cloudy, with a low around 62. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Rain showers likely. Mostly cloudy, with a high near 73. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Rain showers. Mostly cloudy, with a low around 53. Chance of precipitation is 90%.
Rain showers. Mostly cloudy, with a high near 63.
A chance of rain showers. Mostly cloudy, with a low around 48.
A slight chance of rain showers before 11am. Sunny, with a high near 68.
Mostly clear, with a low around 49.
Sunny, with a high near 77.
Clear, with a low around 54.
Sunny, with a high near 83.
Clear, with a low around 58.
Diamond Valley Lake currently reports 70°F with wind velocity near 2 mph from the E. 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 Diamond Valley 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 SGX) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Diamond Valley 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 Diamond Valley Lake Water Level & Temperature page.
View Diamond Valley Lake Water Level & Temperature →