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Official National Weather Service (NWS) point forecast and real-time wind conditions for Upper Mystic Lake (Massachusetts). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 63°F · Low 53°F
Peak gusts: 12 mph · Lake surface chop expected
Humidity: 69% · Barometer: 29.88 inHg
Live hydrological sensor reading for Upper Mystic Lake.
Excellent for boating (94/100), from 4 available inputs. Supporting this: Wind 6 mph from the south. No active official alerts for this lake. 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 (87/100), from 6 available inputs. Supporting this: Measured water temperature 65°F. Provisional data. Wind 6 mph from the south. Not available from a verified source for this lake: pressure trend. Confidence is moderate (73%) because some inputs are unavailable or older than ideal.
Excellent for kayaking (93/100), from 5 available inputs. Supporting this: Wind 6 mph from the south. Gusts to 12 mph. Confidence is high (90%).
Good for swimming (76/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 3% chance of precipitation. Confidence is moderate (77%) because some inputs are unavailable or older than ideal.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 7 PM | 57°F | 2 mph | SE | ⚡ 8 mph | 71% | Rain Showers Likely |
| 8 PM | 56°F | 2 mph | E | ⚡ 7 mph | 83% | Rain Showers |
| 9 PM | 54°F | 3 mph | E | ⚡ 9 mph | 87% | Rain Showers |
| 10 PM | 54°F | 3 mph | E | ⚡ 9 mph | 92% | Rain Showers |
| 11 PM | 54°F | 3 mph | E | ⚡ 9 mph | 96% | Rain Showers |
| 12 AM | 55°F | 5 mph | E | ⚡ 12 mph | 92% | Rain Showers |
| 1 AM | 54°F | 5 mph | NE | ⚡ 13 mph | 81% | Rain Showers |
| 2 AM | 54°F | 6 mph | NE | ⚡ 15 mph | 74% | Rain Showers Likely |
| 3 AM | 54°F | 6 mph | NE | ⚡ 14 mph | 56% | Rain Showers Likely |
| 4 AM | 53°F | 6 mph | N | ⚡ 14 mph | 38% | Chance Rain Showers |
| 5 AM | 54°F | 6 mph | N | ⚡ 13 mph | 16% | Patchy Fog |
| 6 AM | 53°F | 6 mph | N | ⚡ 12 mph | 10% | Patchy Fog |
| 7 AM | 53°F | 6 mph | N | ⚡ 10 mph | 7% | Patchy Fog |
| 8 AM | 53°F | 6 mph | N | ⚡ 10 mph | 5% | Patchy Fog |
| 9 AM | 55°F | 6 mph | N | ⚡ 9 mph | 5% | Patchy Fog |
| 10 AM | 57°F | 5 mph | N | ⚡ 9 mph | 4% | Patchy Fog |
| 11 AM | 60°F | 5 mph | N | ⚡ 9 mph | 4% | Mostly Cloudy |
| 12 PM | 63°F | 5 mph | N | ⚡ 9 mph | 2% | Mostly Sunny |
| 1 PM | 66°F | 5 mph | NW | ⚡ 10 mph | 1% | Sunny |
| 2 PM | 68°F | 5 mph | NW | ⚡ 10 mph | 1% | Sunny |
| 3 PM | 69°F | 3 mph | NW | ⚡ 8 mph | 1% | Sunny |
| 4 PM | 69°F | 3 mph | NW | ⚡ 6 mph | 1% | Sunny |
| 5 PM | 68°F | 2 mph | NW | ⚡ 4 mph | 2% | Sunny |
| 6 PM | 66°F | 2 mph | NW | ⚡ 4 mph | 3% | 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.
Rain showers likely before 8pm, then rain showers and patchy fog between 8pm and 5am, then patchy fog and a slight chance of rain showers. Cloudy, with a low around 52. East wind 2 to 6 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Patchy fog before 11am. Mostly sunny, with a high near 70. North wind 2 to 6 mph.
Partly cloudy, with a low around 52. North wind 2 to 8 mph.
A chance of rain showers after 9am. Cloudy, with a high near 64. Southeast wind around 7 mph. Chance of precipitation is 50%.
A chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 59. South wind around 9 mph. Chance of precipitation is 60%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 73. West wind 8 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 51. Northwest wind 6 to 9 mph.
Sunny, with a high near 62. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.
A slight chance of rain showers after 5am. Partly cloudy, with a low around 44. North wind 3 to 7 mph.
Rain showers likely. Partly sunny, with a high near 62. Southeast wind 3 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Rain showers likely. Mostly cloudy, with a low around 46. Southwest wind 10 to 16 mph. Chance of precipitation is 60%.
A chance of rain showers before 3pm. Partly sunny, with a high near 55. West wind 15 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.
Partly cloudy, with a low around 36. Northwest wind 12 to 16 mph, with gusts as high as 33 mph.
Mostly sunny, with a high near 52. Northwest wind around 13 mph, with gusts as high as 24 mph.
Upper Mystic Lake currently reports 59°F with wind velocity near 5 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 Upper Mystic 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 BOX) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Upper Mystic 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 Upper Mystic Lake Water Level & Temperature page.
View Upper Mystic Lake Water Level & Temperature →