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Official National Weather Service (NWS) point forecast and real-time wind conditions for John Martin Reservoir (Colorado). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 88°F · Low 53°F
Peak gusts: 16 mph · Lake surface chop expected
Humidity: 17% · Barometer: 29.65 inHg
USGS water monitoring available for John Martin Reservoir.
Good for boating (82/100), from 4 available inputs. Supporting this: No active official alerts for this lake. Wind 10 mph from the south. 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 (81/100), from 5 available inputs. Supporting this: Wind 10 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.
Good for kayaking (81/100), from 5 available inputs. Supporting this: Wind 10 mph from the south. No active official alerts for this lake. 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. Air temperature 86°F. 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 | 86°F | 10 mph | S | ⚡ 21 mph | 0% | Sunny |
| 4 PM | 88°F | 15 mph | S | ⚡ 25 mph | 0% | Sunny |
| 5 PM | 85°F | 15 mph | S | ⚡ 30 mph | 0% | Sunny |
| 6 PM | 82°F | 20 mph | S | ⚡ 33 mph | 0% | Clear |
| 7 PM | 77°F | 20 mph | S | ⚡ 38 mph | 0% | Clear |
| 8 PM | 71°F | 20 mph | S | ⚡ 40 mph | 0% | Clear |
| 9 PM | 68°F | 20 mph | S | ⚡ 38 mph | 0% | Clear |
| 10 PM | 66°F | 20 mph | S | ⚡ 40 mph | 0% | Clear |
| 11 PM | 65°F | 20 mph | S | ⚡ 40 mph | 0% | Clear |
| 12 AM | 64°F | 20 mph | S | ⚡ 38 mph | 0% | Clear |
| 1 AM | 62°F | 20 mph | SW | ⚡ 36 mph | 0% | Clear |
| 2 AM | 61°F | 20 mph | SW | ⚡ 32 mph | 0% | Clear |
| 3 AM | 59°F | 15 mph | SW | ⚡ 28 mph | 0% | Mostly Clear |
| 4 AM | 57°F | 15 mph | W | ⚡ 24 mph | 0% | Clear |
| 5 AM | 55°F | 10 mph | W | ⚡ 21 mph | 0% | Clear |
| 6 AM | 54°F | 10 mph | W | ⚡ 18 mph | 0% | Sunny |
| 7 AM | 53°F | 10 mph | W | ⚡ 18 mph | 0% | Sunny |
| 8 AM | 57°F | 10 mph | W | ⚡ 21 mph | 0% | Sunny |
| 9 AM | 61°F | 10 mph | W | ⚡ 22 mph | 0% | Sunny |
| 10 AM | 69°F | 15 mph | W | ⚡ 23 mph | 0% | Sunny |
| 11 AM | 74°F | 15 mph | W | ⚡ 22 mph | 0% | Sunny |
| 12 PM | 80°F | 15 mph | SW | ⚡ 22 mph | 0% | Sunny |
| 1 PM | 83°F | 15 mph | SW | ⚡ 22 mph | 0% | Sunny |
| 2 PM | 85°F | 15 mph | SW | ⚡ 23 mph | 0% | 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.
Sunny, with a high near 88. South wind 10 to 15 mph.
Clear, with a low around 53. South southwest wind 10 to 20 mph, with gusts as high as 40 mph.
Sunny, with a high near 89. Southwest wind 10 to 15 mph.
Partly cloudy, with a low around 62. South southwest wind 10 to 25 mph, with gusts as high as 40 mph.
Mostly sunny, with a high near 88. Southwest wind around 15 mph.
Mostly clear, with a low around 63. South southwest wind 15 to 25 mph, with gusts as high as 45 mph.
Sunny, with a high near 88. Southwest wind 15 to 20 mph.
Mostly clear, with a low around 56. Southwest wind around 10 mph.
Sunny, with a high near 77. Northeast wind 10 to 15 mph.
A slight chance of rain showers after midnight. Mostly clear, with a low around 53. East southeast wind 15 to 20 mph, with gusts as high as 35 mph.
A slight chance of rain showers before noon. Sunny, with a high near 72. South southwest wind around 15 mph.
Mostly clear, with a low around 49. Southwest wind 10 to 15 mph.
Sunny, with a high near 70. Northwest wind 10 to 15 mph.
A slight chance of rain showers after midnight. Mostly clear, with a low around 45. Northeast wind around 10 mph.
John Martin Reservoir currently reports 87°F with wind velocity near 12 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 John Martin 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 PUB) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for John Martin 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 John Martin Reservoir Water Level & Temperature page.
View John Martin Reservoir Water Level & Temperature →