Current conditions at
Nantucket, Nantucket Memorial Airport (KACK)
Lat: 41.25°NLon: 70.06°WElev: 46ft.
Overcast
39°F
4°C
| Humidity | 79% |
| Wind Speed | N 18 G 31 mph |
| Barometer | 30.27 in (1024.9 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 21 Apr 3:53 am EDT |
Extended Forecast for
3 Miles NNE Siasconset MA
Today

High: 44 °F
Decreasing
CloudsTonight

Low: 37 °F
Partly Cloudy
Wednesday
High: 45 °F
Slight Chance
Rain then
Rain LikelyWednesday Night

Low: 43 °F
Chance Rain
Thursday
High: 49 °F
Slight Chance
Showers then
Mostly SunnyThursday Night

Low: 43 °F
Partly Cloudy
Friday

High: 48 °F
Mostly Sunny
Friday Night

Low: 43 °F
Mostly Clear
Saturday

High: 48 °F
Mostly Sunny
Detailed Forecast
Today
Mostly cloudy, then gradually becoming sunny, with a high near 44. Northeast wind 6 to 15 mph.
Tonight
Partly cloudy, with a low around 37. Southeast wind around 8 mph becoming southwest after midnight.
Wednesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 45. South wind 13 to 17 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain, mainly before 9pm. Cloudy, with a low around 43. Southeast wind 7 to 16 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A slight chance of showers before 9am, then a slight chance of showers after 4pm. Partly sunny, with a high near 49. East wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 43. Northwest wind around 8 mph.
Friday
Mostly sunny, with a high near 48. North wind around 9 mph.
Friday Night
Mostly clear, with a low around 43. Northeast wind around 6 mph becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 48. Northeast wind around 8 mph.
Saturday Night
Mostly cloudy, with a low around 44. East wind around 6 mph.
Sunday
Partly sunny, with a high near 49. Northeast wind around 10 mph.
Sunday Night
Mostly cloudy, with a low around 45. Northeast wind 9 to 11 mph.
Monday
Mostly sunny, with a high near 50. Northeast wind 11 to 13 mph.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Siasconset MA
41.33°N 69.98°W (Elev. 0 ft)
41.33°N 69.98°W (Elev. 0 ft)
3:59 am EDT Apr 21, 2026
4am EDT Apr 21, 2026-6pm EDT Apr 27, 2026


