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Official National Weather Service (NWS) point forecast and real-time wind conditions for Green Mountain Reservoir (Colorado). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 70°F · Low 40°F
Peak gusts: 13 mph · Lake surface chop expected
Humidity: 29% · Barometer: 29.86 inHg
USGS water monitoring available for Green Mountain Reservoir.
Fair for boating (70/100), from 4 available inputs. Supporting this: Wind 6 mph from the west-northwest. Gusts to 9 mph. 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.
Fair for fishing (60/100), from 5 available inputs. Supporting this: Wind 6 mph from the west-northwest. 6% chance of precipitation. 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.
Fair for kayaking (70/100), from 5 available inputs. Supporting this: Wind 6 mph from the west-northwest. Gusts to 9 mph. 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: No active official alerts for this lake. 6% chance of precipitation. 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 |
|---|---|---|---|---|---|---|
| 12 PM | 68°F | 6 mph | NW | ⚡ 9 mph | 6% | Sunny |
| 1 PM | 69°F | 8 mph | W | ⚡ 13 mph | 6% | Sunny |
| 2 PM | 70°F | 10 mph | W | ⚡ 16 mph | 16% | Slight Chance Rain Showers |
| 3 PM | 70°F | 12 mph | W | ⚡ 17 mph | 16% | Slight Chance Rain Showers |
| 4 PM | 69°F | 12 mph | W | ⚡ 17 mph | 16% | Slight Chance Rain Showers |
| 5 PM | 68°F | 9 mph | W | ⚡ 15 mph | 16% | Slight Chance Rain Showers |
| 6 PM | 65°F | 8 mph | W | ⚡ 12 mph | 16% | Slight Chance Rain Showers |
| 7 PM | 58°F | 7 mph | W | ⚡ 10 mph | 16% | Slight Chance Rain Showers |
| 8 PM | 54°F | 7 mph | SW | ⚡ 10 mph | 12% | Partly Cloudy |
| 9 PM | 51°F | 7 mph | S | ⚡ 10 mph | 4% | Partly Cloudy |
| 10 PM | 48°F | 6 mph | S | ⚡ 9 mph | 0% | Partly Cloudy |
| 11 PM | 47°F | 6 mph | S | ⚡ 8 mph | 0% | Mostly Clear |
| 12 AM | 45°F | 5 mph | S | ⚡ 8 mph | 0% | Mostly Clear |
| 1 AM | 44°F | 5 mph | S | ⚡ 8 mph | 0% | Mostly Clear |
| 2 AM | 43°F | 6 mph | S | ⚡ 9 mph | 0% | Mostly Clear |
| 3 AM | 42°F | 6 mph | S | ⚡ 9 mph | 0% | Mostly Clear |
| 4 AM | 41°F | 6 mph | S | ⚡ 9 mph | 0% | Mostly Clear |
| 5 AM | 40°F | 5 mph | S | ⚡ 8 mph | 0% | Mostly Clear |
| 6 AM | 39°F | 5 mph | S | ⚡ 8 mph | 1% | Sunny |
| 7 AM | 38°F | 5 mph | S | ⚡ 7 mph | 1% | Sunny |
| 8 AM | 42°F | 5 mph | S | ⚡ 8 mph | 4% | Sunny |
| 9 AM | 48°F | 6 mph | S | ⚡ 8 mph | 12% | Sunny |
| 10 AM | 56°F | 7 mph | SW | ⚡ 10 mph | 12% | Mostly Sunny |
| 11 AM | 60°F | 8 mph | SW | ⚡ 14 mph | 12% | 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 slight chance of rain showers after 2pm. Sunny. High near 71, with temperatures falling to around 68 in the afternoon. West wind 3 to 12 mph, with gusts as high as 17 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 8pm. Mostly clear. Low around 38, with temperatures rising to around 40 overnight. South southwest wind 5 to 8 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after noon. Mostly sunny. High near 68, with temperatures falling to around 65 in the afternoon. Southwest wind 5 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Mostly cloudy, with a low around 41. South wind around 6 mph, with gusts as high as 17 mph.
Partly sunny, with a high near 68. South wind 3 to 8 mph, with gusts as high as 22 mph.
A chance of rain showers before midnight. Partly cloudy, with a low around 38. Chance of precipitation is 30%.
Sunny, with a high near 66.
A slight chance of rain showers after midnight. Mostly clear, with a low around 33.
A slight chance of rain showers. Mostly sunny, with a high near 65.
A slight chance of thunderstorms and a chance of rain and snow showers before midnight, then rain and snow showers likely. Mostly cloudy, with a low around 31.
Rain and snow showers likely. Mostly cloudy, with a high near 54. Little or no snow accumulation expected.
A chance of rain and snow showers. Mostly cloudy, with a low around 28.
A chance of rain and snow showers. Partly sunny, with a high near 54.
A slight chance of rain and snow showers. Partly cloudy, with a low around 26.
Green Mountain Reservoir currently reports 62°F with wind velocity near 6 mph from the NW. 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 Green Mountain 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 Green Mountain 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 Green Mountain Reservoir Water Level & Temperature page.
View Green Mountain Reservoir Water Level & Temperature →