Current conditions at
Nantucket, Nantucket Memorial Airport (KACK)
Lat: 41.25°NLon: 70.06°WElev: 46ft.
Overcast
68°F
20°C
| Humidity | 96% |
| Wind Speed | N 7 mph |
| Barometer | 29.96 in (1014.6 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 22 Aug 7:53 pm EDT |
Extended Forecast for
Siasconset MA
Tonight
Low: 64 °F
Showers
Likely and
Patchy FogSunday
High: 75 °F
Showers
Likely and
Patchy Fog
then Patchy
FogSunday Night
Low: 67 °F
Chance
Showers and
Patchy FogMonday
High: 78 °F
Mostly Sunny
Monday Night
Low: 65 °F
Mostly Clear
Tuesday
High: 76 °F
Sunny
Tuesday Night
Low: 65 °F
Mostly Clear
Wednesday
High: 76 °F
Sunny
Wednesday Night
Low: 66 °F
Mostly Clear
Detailed Forecast
Tonight
Showers likely, with thunderstorms also possible after 5am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 64. North wind around 6 mph becoming east in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms likely before noon, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 2pm. Otherwise, mostly cloudy, with a high near 75. South wind 8 to 11 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, mainly between 2am and 3am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 67. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 78. Southwest wind 7 to 10 mph.
Monday Night
Mostly clear, with a low around 65. Southwest wind around 8 mph.
Tuesday
Sunny, with a high near 76. Southwest wind 8 to 14 mph.
Tuesday Night
Mostly clear, with a low around 65. West wind 9 to 11 mph.
Wednesday
Sunny, with a high near 76. Southwest wind 7 to 10 mph.
Wednesday Night
Mostly clear, with a low around 66. Southwest wind 6 to 9 mph.
Thursday
Mostly sunny, with a high near 77. South wind 5 to 10 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. Southeast wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 78. South wind 7 to 10 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 66. Southwest wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 78. West wind 7 to 9 mph.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Siasconset MA
41.27°N 70.03°W (Elev. 52 ft)
41.27°N 70.03°W (Elev. 52 ft)
3:11 pm EDT Aug 22, 2026
7pm EDT Aug 22, 2026-6pm EDT Aug 29, 2026
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