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

37°F

3°C

Humidity 57%
Wind Speed SW 12 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 13 Mar 7:53 pm EDT
Extended Forecast for

2 Miles ENE Siasconset MA

  • Tonight

    Tonight: Showers likely, mainly after 2am. Mostly cloudy, with a low around 36. Breezy, with a south wind 13 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Mostly Cloudy
    then Showers
    Likely and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 44. Breezy, with a west wind 20 to 25 mph, with gusts as high as 41 mph.

    High: 44 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. Northwest wind 13 to 18 mph, with gusts as high as 28 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 43. North wind 6 to 8 mph becoming east in the afternoon.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 37. Southeast wind 10 to 14 mph.

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: Rain. High near 52. Breezy, with a south wind 18 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.

    High: 52 °F

    Rain and
    Breezy

  • Monday Night

    Monday Night: Rain. Low around 37. Windy, with a south wind 26 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 90%.

    Low: 37 °F

    Rain and
    Windy

  • Tuesday

    Tuesday: Rain likely, mainly before 10am. Partly sunny, with a high near 46. Breezy, with a southwest wind around 23 mph. Chance of precipitation is 70%.

    High: 46 °F

    Breezy. Rain
    Likely then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 26. Breezy, with a west wind 17 to 23 mph.

    Low: 26 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Tonight
Showers likely, mainly after 2am. Mostly cloudy, with a low around 36. Breezy, with a south wind 13 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 44. Breezy, with a west wind 20 to 25 mph, with gusts as high as 41 mph.
Saturday Night
Mostly clear, with a low around 33. Northwest wind 13 to 18 mph, with gusts as high as 28 mph.
Sunday
Partly sunny, with a high near 43. North wind 6 to 8 mph becoming east in the afternoon.
Sunday Night
Mostly cloudy, with a low around 37. Southeast wind 10 to 14 mph.
Monday
Rain. High near 52. Breezy, with a south wind 18 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.
Monday Night
Rain. Low around 37. Windy, with a south wind 26 to 29 mph, with gusts as high as 44 mph. Chance of precipitation is 90%.
Tuesday
Rain likely, mainly before 10am. Partly sunny, with a high near 46. Breezy, with a southwest wind around 23 mph. Chance of precipitation is 70%.
Tuesday Night
Partly cloudy, with a low around 26. Breezy, with a west wind 17 to 23 mph.
Wednesday
Sunny, with a high near 35. Northwest wind 7 to 13 mph.
Wednesday Night
Mostly cloudy, with a low around 30. South wind around 6 mph.
Thursday
Partly sunny, with a high near 40. Southeast wind 8 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 35. South wind around 8 mph becoming west after midnight.
Friday
Mostly sunny, with a high near 41. West wind around 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
2:45 pm EDT Mar 13, 2026
Forecast Valid:
8pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
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Additional Resources

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