Current conditions at
Nantucket, Nantucket Memorial Airport (KACK)
Lat: 41.25°NLon: 70.06°WElev: 46ft.
Fog/Mist
45°F
7°C
| Humidity | 100% |
| Wind Speed | SW 16 mph |
| Barometer | 29.72 in (1006.5 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 4.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 21 Mar 4:53 am EDT |
Extended Forecast for
3 Miles NNE Siasconset MA
Overnight

Low: 41 °F
Chance Rain
and Patchy
FogSaturday
High: 44 °F
Patchy Fog
then Partly
SunnySaturday Night

Low: 40 °F
Increasing
CloudsSunday
High: 46 °F
Cloudy then
Chance Rain
and Patchy
FogSunday Night

Low: 38 °F
Rain and
Patchy FogMonday
High: 41 °F
Breezy. Rain
then Chance
RainMonday Night
Low: 34 °F
Mostly Cloudy
and Breezy
then Mostly
CloudyTuesday

High: 38 °F
Sunny
Tuesday Night

Low: 35 °F
Mostly Cloudy
Detailed Forecast
Overnight
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 41. Southwest wind around 17 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 44. West wind 13 to 18 mph becoming north in the afternoon. Winds could gust as high as 29 mph.
Saturday Night
Increasing clouds, with a low around 40. North wind 5 to 8 mph becoming southeast after midnight.
Sunday
A chance of rain, mainly after 4pm. Patchy fog after 5pm. Otherwise, cloudy, with a high near 46. South wind 10 to 18 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain, mainly after 10pm. Patchy fog before 9pm. Low around 38. Southwest wind 10 to 13 mph becoming north after midnight. Chance of precipitation is 80%.
Monday
Rain, mainly before 9am. High near 41. Breezy, with a north wind 17 to 22 mph. Chance of precipitation is 80%.
Monday Night
Mostly cloudy, with a low around 34. Breezy, with a north wind 17 to 20 mph.
Tuesday
Sunny, with a high near 38. North wind 7 to 16 mph.
Tuesday Night
Mostly cloudy, with a low around 35. Southwest wind 9 to 18 mph.
Wednesday
Partly sunny, with a high near 43. Southwest wind around 18 mph.
Wednesday Night
Mostly cloudy, with a low around 36. West wind 15 to 17 mph becoming northwest after midnight.
Thursday
Partly sunny, with a high near 44. South wind 13 to 15 mph.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 39. Breezy, with a southwest wind 16 to 24 mph. Chance of precipitation is 40%.
Friday
A chance of rain. Partly sunny, with a high near 45. Breezy, with a west wind 15 to 22 mph. Chance of precipitation is 40%.
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)
2:33 am EDT Mar 21, 2026
5am EDT Mar 21, 2026-6pm EDT Mar 27, 2026


