National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fair

45°F

7°C

Humidity 80%
Wind Speed S 14 mph
Barometer 30.30 in (1026.1 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 9 Jan 12:53 pm EST
Extended Forecast for

3 Miles NNE Siasconset MA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 46. South wind around 15 mph.

    High: 46 °F

    Partly Sunny

  • Tonight

    Tonight: Showers likely, mainly between 11pm and 3am. Patchy fog. Otherwise, cloudy, with a low around 39. Breezy, with a south wind 16 to 22 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Rain likely, mainly after 4pm. Patchy fog before 9am, then patchy fog after 3pm. Otherwise, cloudy, with a high near 43. Northwest wind 6 to 10 mph becoming east in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain Likely
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: Rain. Patchy fog before 8pm. Low around 39. East wind 9 to 15 mph becoming southwest after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 39 °F

    Rain and
    Patchy Fog

  • Sunday

    Sunday: Rain. High near 43. West wind 11 to 15 mph. Chance of precipitation is 80%.

    High: 43 °F

    Rain

  • Sunday Night

    Sunday Night: A chance of rain, mainly before midnight. Partly cloudy, with a low around 31. Windy, with a west wind 20 to 30 mph. Chance of precipitation is 40%.

    Low: 31 °F

    Chance Rain
    and Windy

  • Monday

    Monday: Sunny, with a high near 38. Windy, with a west wind 18 to 28 mph.

    High: 38 °F

    Sunny and
    Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. West wind around 17 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. West wind 16 to 18 mph.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 46. South wind around 15 mph.
Tonight
Showers likely, mainly between 11pm and 3am. Patchy fog. Otherwise, cloudy, with a low around 39. Breezy, with a south wind 16 to 22 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely, mainly after 4pm. Patchy fog before 9am, then patchy fog after 3pm. Otherwise, cloudy, with a high near 43. Northwest wind 6 to 10 mph becoming east in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Patchy fog before 8pm. Low around 39. East wind 9 to 15 mph becoming southwest after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain. High near 43. West wind 11 to 15 mph. Chance of precipitation is 80%.
Sunday Night
A chance of rain, mainly before midnight. Partly cloudy, with a low around 31. Windy, with a west wind 20 to 30 mph. Chance of precipitation is 40%.
Monday
Sunny, with a high near 38. Windy, with a west wind 18 to 28 mph.
Monday Night
Partly cloudy, with a low around 35. West wind around 17 mph.
Tuesday
Mostly sunny, with a high near 41. West wind 16 to 18 mph.
Tuesday Night
Mostly cloudy, with a low around 39. Southwest wind around 14 mph.
Wednesday
Mostly cloudy, with a high near 43. Southwest wind 14 to 16 mph.
Wednesday Night
A chance of rain. Cloudy, with a low around 36. Southwest wind 9 to 11 mph becoming north after midnight. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 39. North wind 11 to 14 mph. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
8:56 am EST Jan 9, 2026
Forecast Valid:
1pm EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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