Current conditions at
Nantucket, Nantucket Memorial Airport (KACK)
Lat: 41.25°NLon: 70.06°WElev: 46ft.
Fair
65°F
18°C
| Humidity | 78% |
| Wind Speed | W 12 mph |
| Barometer | 29.89 in (1012.3 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 21 Jun 7:53 pm EDT |
Extended Forecast for
2 Miles S Siasconset MA
Tonight

Low: 63 °F
Increasing
CloudsMonday

High: 74 °F
Partly Sunny
Monday Night
Low: 65 °F
Slight Chance
T-storms then
Showers
LikelyTuesday

High: 79 °F
Showers
Tuesday Night

Low: 64 °F
Chance
ShowersWednesday

High: 80 °F
Sunny
Wednesday Night

Low: 64 °F
Mostly Clear
Thursday

High: 77 °F
Sunny
Thursday Night

Low: 64 °F
Partly Cloudy
Detailed Forecast
Tonight
Increasing clouds, with a low around 63. West wind 5 to 10 mph.
Monday
Partly sunny, with a high near 74. Calm wind becoming south 5 to 8 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 65. South wind 9 to 13 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm. High near 79. South wind 10 to 14 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 64. Northwest wind around 6 mph. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 80. West wind around 7 mph.
Wednesday Night
Mostly clear, with a low around 64. West wind around 6 mph.
Thursday
Sunny, with a high near 77. Southwest wind 5 to 9 mph.
Thursday Night
Partly cloudy, with a low around 64. South wind around 7 mph.
Friday
Mostly sunny, with a high near 77. South wind 7 to 10 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 65. Southwest wind around 8 mph. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 79. Southwest wind 6 to 10 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 65. Southwest wind around 8 mph.
Sunday
Mostly sunny, with a high near 78. Northwest wind 6 to 8 mph becoming southwest in the afternoon.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles S Siasconset MA
41.24°N 70.01°W (Elev. 0 ft)
41.24°N 70.01°W (Elev. 0 ft)
3:22 pm EDT Jun 21, 2026
7pm EDT Jun 21, 2026-6pm EDT Jun 28, 2026


