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Official National Weather Service (NWS) point forecast and real-time wind conditions for Imperial Reservoir (Arizona). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Wind Advisory issued October 11 at 12:23AM MST until October 11 at 5:00PM MST by NWS Phoenix AZ
Today: High 84°F · Low 71°F
Peak gusts: 37 mph · Lake surface chop expected
Humidity: 61% · Barometer: 29.84 inHg
USGS water monitoring available for Imperial Reservoir.
Wind Advisory issued October 11 at 12:23AM MST until October 11 at 5:00PM MST by NWS Phoenix AZ
Very Poor / Avoid for boating (8/100), from 4 available inputs. Supporting this: 15% chance of precipitation. Working against it: Gusts to 40 mph. Wind 25 mph from the south. Wind Advisory is in effect for this lake; the score is already below the 30 cap. The forecast mentions thunderstorms, which carries a risk penalty. 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.
Poor for fishing (47/100), from 5 available inputs. Supporting this: Morning hours (08:00 local). Sky is partly cloudy (25% cloud cover). Working against it: Wind 25 mph from the south. The forecast mentions thunderstorms, which carries a risk penalty. 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.
Very Poor / Avoid for kayaking (10/100), from 5 available inputs. Supporting this: 15% chance of precipitation. Air temperature 76°F. Working against it: Gusts to 40 mph. Wind 25 mph from the south. Wind Advisory is in effect for this lake; the score is already below the 30 cap. The forecast mentions thunderstorms, which carries a risk penalty. 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: Air temperature 76°F. 15% chance of precipitation. Working against it: Active moderate alert: Wind Advisory. The forecast mentions thunderstorms, which carries a risk penalty. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 8 AM | 76°F | 25 mph | S | ⚡ 40 mph | 15% | Slight Chance Showers And Thunderstorms |
| 9 AM | 79°F | 25 mph | S | ⚡ 45 mph | 17% | Slight Chance Showers And Thunderstorms |
| 10 AM | 81°F | 25 mph | S | ⚡ 44 mph | 13% | Slight Chance Showers And Thunderstorms |
| 11 AM | 82°F | 20 mph | SW | ⚡ 40 mph | 20% | Slight Chance Showers And Thunderstorms |
| 12 PM | 83°F | 20 mph | SW | ⚡ 39 mph | 22% | Slight Chance Showers And Thunderstorms |
| 1 PM | 84°F | 15 mph | SW | ⚡ 36 mph | 24% | Slight Chance Showers And Thunderstorms |
| 2 PM | 83°F | 15 mph | SW | ⚡ 30 mph | 17% | Slight Chance Showers And Thunderstorms |
| 3 PM | 83°F | 15 mph | W | ⚡ 28 mph | 18% | Slight Chance Showers And Thunderstorms |
| 4 PM | 83°F | 10 mph | W | ⚡ 27 mph | 11% | Slight Chance Showers And Thunderstorms |
| 5 PM | 81°F | 10 mph | W | ⚡ 23 mph | 7% | Mostly Sunny |
| 6 PM | 80°F | 10 mph | W | ⚡ 21 mph | 7% | Partly Cloudy |
| 7 PM | 78°F | 5 mph | NW | ⚡ 17 mph | 6% | Partly Cloudy |
| 8 PM | 76°F | 5 mph | W | ⚡ 13 mph | 6% | Partly Cloudy |
| 9 PM | 75°F | 5 mph | N | ⚡ 12 mph | 6% | Mostly Clear |
| 10 PM | 74°F | 5 mph | NE | ⚡ 9 mph | 5% | Mostly Clear |
| 11 PM | 73°F | 0 mph | — | ⚡ 8 mph | 6% | Mostly Clear |
| 12 AM | 72°F | 0 mph | — | ⚡ 8 mph | 6% | Partly Cloudy |
| 1 AM | 71°F | 0 mph | — | ⚡ 8 mph | 5% | Partly Cloudy |
| 2 AM | 70°F | 5 mph | N | ⚡ 9 mph | 5% | Partly Cloudy |
| 3 AM | 69°F | 5 mph | N | ⚡ 9 mph | 6% | Partly Cloudy |
| 4 AM | 67°F | 5 mph | N | ⚡ 9 mph | 5% | Partly Cloudy |
| 5 AM | 67°F | 5 mph | N | ⚡ 9 mph | 5% | Partly Cloudy |
| 6 AM | 67°F | 0 mph | — | ⚡ 8 mph | 4% | Partly Sunny |
| 7 AM | 66°F | 0 mph | — | ⚡ 6 mph | 0% | Mostly 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.
A chance of showers and thunderstorms before 3am. Mostly cloudy. Low around 73, with temperatures rising to around 75 overnight. Southeast wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms between 7am and 5pm. Mostly sunny. High near 85, with temperatures falling to around 81 in the afternoon. South southwest wind 10 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 20%.
Partly cloudy. Low around 65, with temperatures rising to around 67 overnight. North northwest wind 0 to 10 mph, with gusts as high as 25 mph.
A slight chance of rain showers after 2pm. Mostly sunny. High near 80, with temperatures falling to around 78 in the afternoon. West southwest wind 0 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 11pm. Partly cloudy, with a low around 59. West northwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 77. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Clear, with a low around 57. North northwest wind 5 to 10 mph, with gusts as high as 25 mph.
Sunny, with a high near 81. North northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Clear, with a low around 60. North northwest wind 5 to 15 mph, with gusts as high as 35 mph.
Sunny, with a high near 86. North wind 10 to 15 mph, with gusts as high as 35 mph.
Clear, with a low around 65. North wind 10 to 20 mph, with gusts as high as 40 mph.
Sunny, with a high near 89. North northeast wind 15 to 20 mph, with gusts as high as 40 mph.
Mostly clear, with a low around 69. Northeast wind 15 to 20 mph, with gusts as high as 45 mph.
Sunny, with a high near 88. East northeast wind 10 to 20 mph, with gusts as high as 45 mph.
Imperial Reservoir currently reports 79°F with wind velocity near 20 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 Imperial Reservoir 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 PSR) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Imperial Reservoir 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 Imperial Reservoir Water Level & Temperature page.
View Imperial Reservoir Water Level & Temperature →