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Official National Weather Service (NWS) point forecast and real-time wind conditions for Iliamna Lake (Alaska). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 48°F · Low 40°F
Peak gusts: 13 mph · Lake surface chop expected
Humidity: 82% · Barometer: 29.37 inHg
USGS water monitoring available for Iliamna Lake.
Good for boating (83/100), from 4 available inputs. Supporting this: No active official alerts for this lake. Wind 10 mph from the southwest. Working against it: 60% chance of precipitation is likely. 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 (69/100), from 5 available inputs. Supporting this: Wind 10 mph from the southwest. Sky is cloudy (84% cloud cover). Working against it: 60% chance of precipitation is likely. 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.
Good for kayaking (81/100), from 5 available inputs. Supporting this: Wind 10 mph from the southwest. Gusts to 13 mph. Working against it: 60% chance of precipitation is likely. 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 10 mph from the southwest. Working against it: Air temperature 47°F. 60% chance of precipitation is likely. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 3 PM | 47°F | 10 mph | SW | ⚡ 13 mph | 60% | Chance Rain Showers |
| 4 PM | 48°F | 10 mph | SW | ⚡ 15 mph | 62% | Chance Rain Showers |
| 5 PM | 48°F | 10 mph | SW | ⚡ 15 mph | 62% | Chance Rain Showers |
| 6 PM | 47°F | 10 mph | SW | ⚡ 15 mph | 62% | Chance Rain Showers |
| 7 PM | 47°F | 10 mph | SW | ⚡ 15 mph | 59% | Chance Rain Showers |
| 8 PM | 46°F | 10 mph | SW | ⚡ 15 mph | 59% | Chance Rain Showers |
| 9 PM | 46°F | 10 mph | SW | ⚡ 15 mph | 59% | Chance Rain Showers |
| 10 PM | 45°F | 10 mph | S | ⚡ 10 mph | 45% | Chance Rain Showers |
| 11 PM | 43°F | 10 mph | S | ⚡ 10 mph | 45% | Chance Rain Showers |
| 12 AM | 42°F | 10 mph | S | ⚡ 10 mph | 45% | Chance Rain Showers |
| 1 AM | 42°F | 10 mph | SW | ⚡ 15 mph | 48% | Chance Rain Showers |
| 2 AM | 42°F | 10 mph | SW | ⚡ 15 mph | 48% | Chance Rain Showers |
| 3 AM | 41°F | 10 mph | SW | ⚡ 15 mph | 48% | Chance Rain Showers |
| 4 AM | 41°F | 10 mph | SW | ⚡ 8 mph | 59% | Rain Showers Likely |
| 5 AM | 40°F | 10 mph | SW | ⚡ 8 mph | 59% | Rain Showers Likely |
| 6 AM | 41°F | 10 mph | SW | ⚡ 8 mph | 59% | Rain Showers Likely |
| 7 AM | 42°F | 5 mph | S | ⚡ 6 mph | 48% | Chance Rain Showers |
| 8 AM | 42°F | 5 mph | S | ⚡ 6 mph | 48% | Chance Rain Showers |
| 9 AM | 42°F | 5 mph | S | ⚡ 6 mph | 48% | Chance Rain Showers |
| 10 AM | 42°F | 5 mph | SE | ⚡ 5 mph | 40% | Chance Rain Showers |
| 11 AM | 42°F | 5 mph | SE | ⚡ 5 mph | 40% | Chance Rain Showers |
| 12 PM | 43°F | 5 mph | SE | ⚡ 5 mph | 40% | Chance Rain Showers |
| 1 PM | 44°F | 5 mph | SE | ⚡ 5 mph | 45% | Chance Rain Showers |
| 2 PM | 45°F | 5 mph | SE | ⚡ 5 mph | 45% | Chance Rain Showers |
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 rain showers. Mostly cloudy, with a high near 48. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
A chance of rain showers. Mostly cloudy, with a high near 48. Southwest wind around 10 mph. Chance of precipitation is 60%.
A chance of rain showers. Mostly cloudy, with a low around 40. Southwest wind around 10 mph. Chance of precipitation is 60%.
Rain showers likely. Mostly cloudy, with a high near 47. South wind 5 to 10 mph. Chance of precipitation is 60%.
A chance of rain showers before 10pm, then a chance of rain between 10pm and 1am, then a chance of rain showers. Mostly cloudy, with a low around 39. East wind 5 to 10 mph. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a high near 46. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.
A chance of rain showers before 10pm. Mostly cloudy, with a low around 39. South wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of rain after 4pm. Mostly cloudy, with a high near 46.
A chance of rain. Cloudy, with a low around 41.
A chance of rain. Mostly cloudy, with a high near 46.
A slight chance of rain before 10pm, then a chance of rain and snow. Cloudy, with a low around 38.
A chance of rain and snow before 4pm, then a chance of rain and snow. Cloudy, with a high near 43.
A chance of rain and snow. Mostly cloudy, with a low around 36.
A slight chance of rain and snow before 4pm. Partly sunny, with a high near 40.
Iliamna Lake currently reports 47°F with wind velocity near 7 mph from the SW. 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 Iliamna 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 ALU) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Iliamna 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 Iliamna Lake Water Level & Temperature page.
View Iliamna Lake Water Level & Temperature →