Nantucket Airport (ACK) Weather 08/02/2026
Today
69
Partly Sunny
Tonight
63
Patchy Fog
Monday
74
Decreasing Clouds
Monday Night
63
Mostly Clear
Tuesday
75
Mostly Sunny
Tuesday Night
65
Chance Showers
Wednesday
76
Showers and Breezy
Wednesday Night
64
Showers Likely
Thursday
75
Chance Showers
Thursday Night
64
Mostly Cloudy
Friday
75
Mostly Sunny
Friday Night
65
Partly Cloudy
Saturday
76
Mostly Sunny
Weekly Forecast
Today
Partly sunny, with a high near 69. Northeast wind around 14 mph.
Tonight
Patchy fog before 1am. Otherwise, mostly cloudy, with a low around 63. North wind 8 to 11 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 74. North wind 8 to 11 mph.
Monday Night
Mostly clear, with a low around 63. South wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 75. South wind 8 to 14 mph.
Tuesday Night
A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 65. Southeast wind 10 to 14 mph. Chance of precipitation is 40%.
Wednesday
Showers and possibly a thunderstorm before 2pm, then showers likely. High near 76. Breezy, with a southeast wind 18 to 21 mph. Chance of precipitation is 80%.
Wednesday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 64. East wind 13 to 16 mph. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 75. Northeast wind 15 to 17 mph becoming west in the morning. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 64. West wind 9 to 11 mph.
Friday
Mostly sunny, with a high near 75. West wind 10 to 13 mph.
Friday Night
Partly cloudy, with a low around 65. West wind around 8 mph.
Saturday
Mostly sunny, with a high near 76. Southwest wind 7 to 11 mph.