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 and Breezy

37°F

3°C

Humidity 50%
Wind Speed SW 21 G 29 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 13 Mar 2:53 pm EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Tonight

    Tonight: Showers likely, mainly after 2am. Mostly cloudy, with a low around 38. Breezy, with a south wind 14 to 19 mph increasing to 20 to 25 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Sunny, with a high near 44. Windy, with a west wind 25 to 31 mph, with gusts as high as 43 mph.

    High: 44 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Breezy, with a northwest wind 16 to 24 mph.

    Low: 34 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Partly sunny, with a high near 43. Northwest wind 7 to 9 mph becoming east in the afternoon.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39. Breezy, with a southeast wind 13 to 20 mph.

    Low: 39 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Monday

    Monday: Rain, mainly after 8am. High near 52. Windy, with a south wind 26 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 90%.

    High: 52 °F

    Rain and
    Windy

  • Monday Night

    Monday Night: Rain. Low around 39. Windy, with a south wind 33 to 36 mph, with gusts as high as 48 mph. Chance of precipitation is 90%.

    Low: 39 °F

    Rain and
    Windy

  • Tuesday

    Tuesday: Rain likely, mainly before 10am. Partly sunny, with a high near 45. Windy, with a southwest wind 26 to 29 mph. Chance of precipitation is 70%.

    High: 45 °F

    Windy. Rain
    Likely then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. Windy, with a west wind 22 to 30 mph.

    Low: 28 °F

    Partly Cloudy
    and Windy

Detailed Forecast

Tonight
Showers likely, mainly after 2am. Mostly cloudy, with a low around 38. Breezy, with a south wind 14 to 19 mph increasing to 20 to 25 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 44. Windy, with a west wind 25 to 31 mph, with gusts as high as 43 mph.
Saturday Night
Mostly clear, with a low around 34. Breezy, with a northwest wind 16 to 24 mph.
Sunday
Partly sunny, with a high near 43. Northwest wind 7 to 9 mph becoming east in the afternoon.
Sunday Night
Mostly cloudy, with a low around 39. Breezy, with a southeast wind 13 to 20 mph.
Monday
Rain, mainly after 8am. High near 52. Windy, with a south wind 26 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 90%.
Monday Night
Rain. Low around 39. Windy, with a south wind 33 to 36 mph, with gusts as high as 48 mph. Chance of precipitation is 90%.
Tuesday
Rain likely, mainly before 10am. Partly sunny, with a high near 45. Windy, with a southwest wind 26 to 29 mph. Chance of precipitation is 70%.
Tuesday Night
Partly cloudy, with a low around 28. Windy, with a west wind 22 to 30 mph.
Wednesday
Sunny, with a high near 35. Northwest wind 7 to 16 mph.
Wednesday Night
Mostly cloudy, with a low around 31. South wind around 7 mph.
Thursday
Partly sunny, with a high near 40. Southeast wind 8 to 11 mph.
Thursday Night
Mostly cloudy, with a low around 36. South wind around 10 mph becoming west after midnight.
Friday
Mostly sunny, with a high near 41. West wind around 11 mph.
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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:
2:45 pm EDT Mar 13, 2026
Forecast Valid:
3pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation