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

Hazardous Weather Conditions

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fair

63°F

17°C

Humidity 56%
Wind Speed NE 13 mph
Barometer 30.18 in (1022.0 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 19 Sep 2:53 pm EDT
Extended Forecast for

2 Miles SSE Siasconset MA

  • Tonight

    Tonight: Partly cloudy, with a low around 52. East wind 6 to 10 mph.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 4pm. Increasing clouds, with a high near 65. Southeast wind 10 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers after 2am. Patchy fog. Low around 62. East wind 9 to 11 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Showers likely, mainly before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 65. Northeast wind around 17 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Showers
    Likely and
    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57. Northeast wind 11 to 13 mph.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers after 11am. Mostly cloudy, with a high near 63. Northeast wind around 16 mph. Chance of precipitation is 20%.

    High: 63 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55. Northeast wind around 16 mph.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. Breezy, with a northeast wind 18 to 20 mph.

    High: 64 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55. Breezy, with a northeast wind 18 to 20 mph.

    Low: 55 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 52. East wind 6 to 10 mph.
Sunday
Showers likely, mainly after 4pm. Increasing clouds, with a high near 65. Southeast wind 10 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers before 11pm, then showers and possibly a thunderstorm between 11pm and 2am, then showers after 2am. Patchy fog. Low around 62. East wind 9 to 11 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers likely, mainly before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 65. Northeast wind around 17 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly cloudy, with a low around 57. Northeast wind 11 to 13 mph.
Tuesday
A slight chance of showers after 11am. Mostly cloudy, with a high near 63. Northeast wind around 16 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 55. Northeast wind around 16 mph.
Wednesday
Partly sunny, with a high near 64. Breezy, with a northeast wind 18 to 20 mph.
Wednesday Night
Mostly cloudy, with a low around 55. Breezy, with a northeast wind 18 to 20 mph.
Thursday
A chance of showers after 9am. Mostly cloudy, with a high near 64. Breezy, with a northeast wind 20 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 55. Breezy, with a northeast wind around 24 mph. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 65. Breezy, with a northeast wind 20 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 56. Breezy, with a northeast wind 21 to 24 mph. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 65. Breezy, with a north wind 17 to 21 mph. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Siasconset MA
 41.24°N 70.01°W (Elev. 0 ft)
Last Update:
2:33 pm EDT Sep 19, 2026
Forecast Valid:
3pm EDT Sep 19, 2026-6pm EDT Sep 26, 2026
 
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Additional Resources

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Chance of Precipitation