Nantucket Airport (ACK) Weather 06/23/2026
Tonight
63
Clear
Sunday
76
Mostly Sunny
Sunday Night
63
Mostly Cloudy then Showers
Monday
76
Partly Sunny
Monday Night
62
Partly Cloudy
Tuesday
74
Sunny
Tuesday Night
61
Partly Cloudy
Wednesday
73
Mostly Sunny
Wednesday Night
62
Mostly Cloudy
Thursday
77
Partly Sunny then Partly Sunny and Breezy
Thursday Night
66
Chance Showers and Breezy
Juneteenth
77
Mostly Sunny and Breezy
Friday Night
65
Chance Showers
Weekly Forecast
Tonight
Clear, with a low around 63. West wind around 7 mph.
Sunday
Mostly sunny, with a high near 76. Southwest wind 7 to 14 mph.
Sunday Night
Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Low around 63. South wind 14 to 16 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, with a high near 76. West wind 13 to 15 mph.
Monday Night
Partly cloudy, with a low around 62. West wind around 11 mph.
Tuesday
Sunny, with a high near 74. Northwest wind 7 to 9 mph becoming southwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61. Southwest wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 73. South wind 5 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 62. South wind around 8 mph.
Thursday
Partly sunny, with a high near 77. Breezy, with a south wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. Breezy, with a southwest wind around 21 mph. Chance of precipitation is 40%.
Juneteenth
Mostly sunny, with a high near 77. Breezy, with a southwest wind 18 to 22 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 65. West wind 11 to 16 mph. Chance of precipitation is 30%.