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Official National Weather Service (NWS) point forecast and real-time wind conditions for Harry S. Truman Reservoir (Missouri). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 90°F · Low 62°F
Peak gusts: 8 mph · Lake surface chop expected
Humidity: 71% · Barometer: 29.98 inHg
USGS water monitoring available for Harry S. Truman Reservoir.
Excellent for boating (98/100), from 4 available inputs. Supporting this: Wind 2 mph from the south. Gusts to 7 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 (89/100), from 5 available inputs. Supporting this: Wind 2 mph from the south. 0% chance of precipitation. 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 (98/100), from 5 available inputs. Supporting this: Wind 2 mph from the south. Gusts to 7 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. 0% chance of precipitation. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 5 AM | 63°F | 2 mph | S | ⚡ 7 mph | 0% | Clear |
| 6 AM | 62°F | 2 mph | S | ⚡ 8 mph | 0% | Sunny |
| 7 AM | 62°F | 2 mph | S | ⚡ 8 mph | 0% | Sunny |
| 8 AM | 64°F | 3 mph | S | ⚡ 10 mph | 0% | Sunny |
| 9 AM | 70°F | 5 mph | SW | ⚡ 12 mph | 0% | Sunny |
| 10 AM | 76°F | 6 mph | SW | ⚡ 14 mph | 0% | Sunny |
| 11 AM | 80°F | 7 mph | SW | ⚡ 14 mph | 0% | Sunny |
| 12 PM | 85°F | 8 mph | SW | ⚡ 15 mph | 0% | Sunny |
| 1 PM | 88°F | 8 mph | SW | ⚡ 16 mph | 0% | Sunny |
| 2 PM | 89°F | 9 mph | SW | ⚡ 17 mph | 0% | Sunny |
| 3 PM | 90°F | 10 mph | SW | ⚡ 18 mph | 0% | Sunny |
| 4 PM | 90°F | 9 mph | SW | ⚡ 17 mph | 0% | Mostly Sunny |
| 5 PM | 88°F | 8 mph | SW | ⚡ 16 mph | 0% | Mostly Sunny |
| 6 PM | 85°F | 7 mph | SW | ⚡ 15 mph | 0% | Partly Cloudy |
| 7 PM | 83°F | 6 mph | S | ⚡ 14 mph | 0% | Partly Cloudy |
| 8 PM | 77°F | 6 mph | S | ⚡ 15 mph | 0% | Partly Cloudy |
| 9 PM | 76°F | 6 mph | S | ⚡ 15 mph | 0% | Partly Cloudy |
| 10 PM | 75°F | 6 mph | S | ⚡ 16 mph | 0% | Partly Cloudy |
| 11 PM | 74°F | 7 mph | S | ⚡ 16 mph | 0% | Mostly Cloudy |
| 12 AM | 74°F | 6 mph | S | ⚡ 16 mph | 0% | Partly Cloudy |
| 1 AM | 73°F | 6 mph | S | ⚡ 16 mph | 1% | Partly Cloudy |
| 2 AM | 73°F | 6 mph | SW | ⚡ 16 mph | 1% | Partly Cloudy |
| 3 AM | 73°F | 7 mph | SW | ⚡ 17 mph | 1% | Mostly Clear |
| 4 AM | 72°F | 7 mph | SW | ⚡ 17 mph | 1% | Partly 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.
Overcast. High near 90°F. Wind around 13 mph with gusts up to 23 mph.
Clear. Low around 61, with temperatures rising to around 63 overnight. Southeast wind around 2 mph.
Sunny. High near 91, with temperatures falling to around 88 in the afternoon. Southwest wind 2 to 10 mph, with gusts as high as 18 mph.
Overcast. Low around 59°F.
Partly cloudy. Low around 70, with temperatures rising to around 72 overnight. South wind around 8 mph, with gusts as high as 18 mph.
Overcast. High near 90°F. Wind around 15 mph with gusts up to 35 mph.
Sunny, with a high near 90. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.
Overcast. Low around 68°F.
Mostly clear, with a low around 72. Southwest wind 7 to 12 mph, with gusts as high as 21 mph.
Rain Showers. High near 94°F. Wind around 12 mph with gusts up to 35 mph.
Sunny, with a high near 92.
Rain Showers. Low around 75°F.
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 69.
Thunderstorm. High near 75°F. Wind around 10 mph with gusts up to 30 mph.
Harry S. Truman Reservoir currently reports 61°F with wind velocity near 3 mph from the SE. 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 Harry S. Truman 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 SGF) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Harry S. Truman 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 Harry S. Truman Reservoir Water Level & Temperature page.
View Harry S. Truman Reservoir Water Level & Temperature →