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

26°F

-3°C

Humidity 66%
Wind Speed SE 6 mph
Barometer 30.45 in (1031.2 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 28 Mar 8:53 pm EDT
Extended Forecast for

2 Miles ENE Siasconset MA

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Light and variable wind becoming northwest 5 to 10 mph in the evening.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 44. Northwest wind 7 to 15 mph becoming southwest in the afternoon.

    High: 44 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 39. Southwest wind around 13 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 53. Breezy, with a southwest wind 14 to 20 mph.

    High: 53 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Monday Night

    Monday Night: A slight chance of rain after 2am. Mostly cloudy, with a low around 43. Southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A slight chance of rain before 8am, then a slight chance of showers between 8am and 10am. Partly sunny, with a high near 51. Southwest wind 11 to 16 mph. Chance of precipitation is 20%.

    High: 51 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. Breezy, with a southwest wind 20 to 23 mph, with gusts as high as 33 mph.

    Low: 46 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 51. Breezy, with a southwest wind 20 to 23 mph, with gusts as high as 33 mph.

    High: 51 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 36. Southwest wind around 14 mph becoming northeast after midnight. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 28. Light and variable wind becoming northwest 5 to 10 mph in the evening.
Sunday
Sunny, with a high near 44. Northwest wind 7 to 15 mph becoming southwest in the afternoon.
Sunday Night
Increasing clouds, with a low around 39. Southwest wind around 13 mph.
Monday
Mostly cloudy, with a high near 53. Breezy, with a southwest wind 14 to 20 mph.
Monday Night
A slight chance of rain after 2am. Mostly cloudy, with a low around 43. Southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of rain before 8am, then a slight chance of showers between 8am and 10am. Partly sunny, with a high near 51. Southwest wind 11 to 16 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 46. Breezy, with a southwest wind 20 to 23 mph, with gusts as high as 33 mph.
Wednesday
Partly sunny, with a high near 51. Breezy, with a southwest wind 20 to 23 mph, with gusts as high as 33 mph.
Wednesday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 36. Southwest wind around 14 mph becoming northeast after midnight. Chance of precipitation is 60%.
Thursday
Rain and snow likely before 5pm, then a chance of rain. Mostly cloudy, with a high near 42. Northeast wind around 17 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 36. Northeast wind 15 to 17 mph. Chance of precipitation is 40%.
Friday
Rain and snow likely. Mostly cloudy, with a high near 43. Breezy, with an east wind around 20 mph. Chance of precipitation is 60%.
Friday Night
Rain likely. Cloudy, with a low around 37. Northeast wind 15 to 17 mph. Chance of precipitation is 60%.
Saturday
A chance of rain. Mostly cloudy, with a high near 45. Northeast wind 13 to 15 mph. Chance of precipitation is 30%.
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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:
2:56 pm EDT Mar 28, 2026
Forecast Valid:
9pm EDT Mar 28, 2026-6pm EDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation