Nantucket Airport (ACK) Weather 05/21/2025

Today
56
Mostly Cloudy
Tonight
46
Cloudy
Thursday
58
Heavy Rain and Patchy Fog
Thursday Night
49
Showers and Patchy Fog then Chance Showers and Patchy Fog
Friday
60
Slight Chance Showers
Friday Night
49
Slight Chance Showers
Saturday
60
Mostly Sunny
Saturday Night
50
Partly Cloudy
Sunday
61
Mostly Sunny
Sunday Night
51
Partly Cloudy
Memorial Day
64
Mostly Sunny
Monday Night
52
Chance Showers
Tuesday
64
Chance Showers
Weekly Forecast
Today
Mostly cloudy, with a high near 56. East wind 14 to 16 mph.
Tonight
Cloudy, with a low around 46. East wind 16 to 18 mph.
Thursday
A chance of showers, then showers and possibly a thunderstorm after 9am. Some of the storms could produce heavy rainfall. Patchy fog between 9am and 3pm. High near 58. Windy, with an east wind 21 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Patchy fog. Low around 49. Breezy, with an east wind 15 to 21 mph becoming southwest after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers. Partly sunny, with a high near 60. West wind around 16 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 49. Southwest wind 8 to 10 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 60. West wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 50. West wind around 10 mph.
Sunday
Mostly sunny, with a high near 61. West wind 11 to 14 mph.
Sunday Night
Partly cloudy, with a low around 51. West wind 7 to 9 mph.
Memorial Day
Mostly sunny, with a high near 64. Northwest wind 7 to 10 mph becoming south in the afternoon.
Monday Night
A chance of showers. Mostly cloudy, with a low around 52. Southeast wind around 7 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 64. Southeast wind 9 to 14 mph. Chance of precipitation is 30%.