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.

Overcast

47°F

8°C

Humidity 74%
Wind Speed NW 16 G 26 mph
Barometer 29.81 in (1009.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 6 Apr 12:53 am EDT
Extended Forecast for

3 Miles NNE Siasconset MA

  • Overnight

    Overnight: Cloudy, then gradually becoming partly cloudy, with a low around 41. West wind around 16 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 45. Breezy, with a west wind 21 to 23 mph.

    High: 45 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. Northwest wind 11 to 17 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain, mainly before 4pm. Partly sunny, with a high near 45. Northwest wind 10 to 14 mph becoming southwest in the morning. Chance of precipitation is 40%.

    High: 45 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 35. North wind 13 to 16 mph.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 40. North wind 9 to 15 mph becoming east in the afternoon.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37. South wind around 6 mph.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 45. Southeast wind 8 to 11 mph.

    High: 45 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. South wind 9 to 11 mph.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
Cloudy, then gradually becoming partly cloudy, with a low around 41. West wind around 16 mph.
Monday
Sunny, with a high near 45. Breezy, with a west wind 21 to 23 mph.
Monday Night
Partly cloudy, with a low around 36. Northwest wind 11 to 17 mph.
Tuesday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 45. Northwest wind 10 to 14 mph becoming southwest in the morning. Chance of precipitation is 40%.
Tuesday Night
Mostly clear, with a low around 35. North wind 13 to 16 mph.
Wednesday
Sunny, with a high near 40. North wind 9 to 15 mph becoming east in the afternoon.
Wednesday Night
Mostly clear, with a low around 37. South wind around 6 mph.
Thursday
Sunny, with a high near 45. Southeast wind 8 to 11 mph.
Thursday Night
Partly cloudy, with a low around 43. South wind 9 to 11 mph.
Friday
Mostly sunny, with a high near 49. South wind around 10 mph.
Friday Night
Partly cloudy, with a low around 43. South wind 9 to 11 mph.
Saturday
Mostly sunny, with a high near 50. Southwest wind around 10 mph becoming northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 44. Northeast wind 8 to 10 mph.
Sunday
Mostly sunny, with a high near 48. North wind around 10 mph becoming east in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Siasconset MA
 41.33°N 69.98°W (Elev. 0 ft)
Last Update:
7:31 pm EDT Apr 5, 2026
Forecast Valid:
1am EDT Apr 6, 2026-6pm EDT Apr 12, 2026
 
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Additional Resources

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Chance of Precipitation