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Official National Weather Service (NWS) point forecast and real-time wind conditions for Gross Reservoir (Colorado). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 77°F · Low 56°F
Peak gusts: 17 mph · Lake surface chop expected
Humidity: 27% · Barometer: 29.75 inHg
Live hydrological sensor reading for Gross Reservoir.
Excellent for boating (96/100), from 4 available inputs. Supporting this: Wind 6 mph from the west. Gusts to 9 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 (81/100), from 6 available inputs. Supporting this: Wind 6 mph from the west. Measured water temperature 53°F from a representative gauge 4.4 mi away. Provisional data. Not available from a verified source for this lake: pressure trend. Confidence is moderate (82%) because some inputs are unavailable or older than ideal.
Fair for kayaking (70/100), from 5 available inputs. Supporting this: Wind 6 mph from the west. Gusts to 9 mph. Water temperature is 53°F (combined air+water: 110°F). Cold shock hazard: sudden immersion below 55°F poses serious risk. Confidence is high (90%).
Very Poor / Avoid for swimming (25/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Measured water temperature 53°F from a representative gauge 4.4 mi away. Provisional data. Immersion shock hazard: water below 55°F poses severe cold shock and rapid hypothermia risk. Air temperature 57°F. Water temperature is 53°F (below 55°F). Severe cold shock and hypothermia hazard upon immersion. Confidence is high (87%).
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 4 AM | 57°F | 7 mph | W | ⚡ 12 mph | 0% | Clear |
| 5 AM | 56°F | 7 mph | W | ⚡ 12 mph | 0% | Clear |
| 6 AM | 56°F | 7 mph | W | ⚡ 12 mph | 0% | Sunny |
| 7 AM | 56°F | 7 mph | W | ⚡ 12 mph | 0% | Sunny |
| 8 AM | 58°F | 8 mph | W | ⚡ 14 mph | 0% | Sunny |
| 9 AM | 64°F | 7 mph | W | ⚡ 13 mph | 0% | Sunny |
| 10 AM | 72°F | 5 mph | W | ⚡ 8 mph | 0% | Sunny |
| 11 AM | 74°F | 3 mph | W | ⚡ 6 mph | 0% | Sunny |
| 12 PM | 76°F | 3 mph | W | ⚡ 6 mph | 4% | Sunny |
| 1 PM | 77°F | 5 mph | SW | ⚡ 7 mph | 4% | Sunny |
| 2 PM | 77°F | 6 mph | SW | ⚡ 9 mph | 10% | Mostly Sunny |
| 3 PM | 77°F | 6 mph | SW | ⚡ 9 mph | 10% | Partly Sunny |
| 4 PM | 75°F | 6 mph | SW | ⚡ 9 mph | 10% | Partly Sunny |
| 5 PM | 73°F | 6 mph | W | ⚡ 9 mph | 10% | Partly Sunny |
| 6 PM | 70°F | 6 mph | W | ⚡ 9 mph | 10% | Mostly Cloudy |
| 7 PM | 65°F | 7 mph | W | ⚡ 13 mph | 10% | Mostly Cloudy |
| 8 PM | 62°F | 9 mph | W | ⚡ 17 mph | 8% | Partly Cloudy |
| 9 PM | 61°F | 12 mph | W | ⚡ 21 mph | 3% | Partly Cloudy |
| 10 PM | 60°F | 13 mph | W | ⚡ 22 mph | 0% | Partly Cloudy |
| 11 PM | 62°F | 12 mph | W | ⚡ 21 mph | 0% | Mostly Clear |
| 12 AM | 61°F | 13 mph | W | ⚡ 22 mph | 0% | Clear |
| 1 AM | 61°F | 14 mph | W | ⚡ 23 mph | 0% | Clear |
| 2 AM | 60°F | 13 mph | W | ⚡ 23 mph | 0% | Clear |
| 3 AM | 60°F | 12 mph | W | ⚡ 21 mph | 0% | Mostly Clear |
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.
Clear, with a low around 56. West wind around 7 mph.
Mostly sunny. High near 78, with temperatures falling to around 73 in the afternoon. West southwest wind 3 to 8 mph.
Partly cloudy, with a low around 56. West wind 6 to 14 mph, with gusts as high as 23 mph.
Mostly sunny, with a high near 75. West southwest wind 5 to 9 mph, with gusts as high as 16 mph.
Mostly cloudy, with a low around 54. West southwest wind 3 to 8 mph.
Mostly cloudy, with a high near 71.
Partly cloudy, with a low around 52.
Sunny, with a high near 71.
A slight chance of rain showers. Partly cloudy, with a low around 48.
A chance of rain showers after noon. Mostly sunny, with a high near 64.
A chance of rain showers. Mostly cloudy, with a low around 44.
A chance of rain showers. Partly sunny, with a high near 59.
A chance of rain showers. Mostly cloudy, with a low around 42.
A chance of rain showers. Partly sunny, with a high near 58.
Gross Reservoir currently reports 57°F with wind velocity near 12 mph from the W. 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 Gross 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 BOU) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Gross 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 Gross Reservoir Water Level & Temperature page.
View Gross Reservoir Water Level & Temperature →