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

35°F

2°C

Humidity 96%
Wind Speed NW 15 mph
Barometer 29.74 in (1007.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 7 Jan 5:53 pm EST
Extended Forecast for

6 Miles N Siasconset MA

  • Tonight

    Tonight: Patchy fog before 9pm. Otherwise, partly cloudy, with a low around 36. West wind around 14 mph.

    Low: 36 °F

    Patchy Fog
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 39. Northwest wind 7 to 14 mph.

    High: 39 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. Light and variable wind becoming southwest around 6 mph after midnight.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 45. South wind 8 to 17 mph.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after midnight. Cloudy, with a low around 42. Breezy, with a south wind 18 to 22 mph. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely
    and Breezy

  • Saturday

    Saturday: Rain. High near 47. Southwest wind 13 to 15 mph becoming east in the afternoon. Chance of precipitation is 80%.

    High: 47 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 42. Breezy, with a southeast wind 16 to 22 mph becoming southwest after midnight. Chance of precipitation is 90%.

    Low: 42 °F

    Rain and
    Breezy

  • Sunday

    Sunday: Rain, mainly before 1pm. High near 46. Southwest wind around 18 mph. Chance of precipitation is 80%.

    High: 46 °F

    Rain

  • Sunday Night

    Sunday Night: A chance of rain before 4am. Mostly cloudy, with a low around 32. Breezy, with a west wind 20 to 24 mph. Chance of precipitation is 40%.

    Low: 32 °F

    Chance Rain
    and Breezy

Detailed Forecast

Tonight
Patchy fog before 9pm. Otherwise, partly cloudy, with a low around 36. West wind around 14 mph.
Thursday
Sunny, with a high near 39. Northwest wind 7 to 14 mph.
Thursday Night
Partly cloudy, with a low around 37. Light and variable wind becoming southwest around 6 mph after midnight.
Friday
Partly sunny, with a high near 45. South wind 8 to 17 mph.
Friday Night
Rain likely, mainly after midnight. Cloudy, with a low around 42. Breezy, with a south wind 18 to 22 mph. Chance of precipitation is 70%.
Saturday
Rain. High near 47. Southwest wind 13 to 15 mph becoming east in the afternoon. Chance of precipitation is 80%.
Saturday Night
Rain. Low around 42. Breezy, with a southeast wind 16 to 22 mph becoming southwest after midnight. Chance of precipitation is 90%.
Sunday
Rain, mainly before 1pm. High near 46. Southwest wind around 18 mph. Chance of precipitation is 80%.
Sunday Night
A chance of rain before 4am. Mostly cloudy, with a low around 32. Breezy, with a west wind 20 to 24 mph. Chance of precipitation is 40%.
Monday
Sunny, with a high near 36. Breezy, with a west wind 18 to 24 mph.
Monday Night
Partly cloudy, with a low around 33. West wind 16 to 18 mph.
Tuesday
Mostly sunny, with a high near 40. Breezy, with a southwest wind 16 to 20 mph.
Tuesday Night
Partly cloudy, with a low around 37. Southwest wind 14 to 18 mph.
Wednesday
Partly sunny, with a high near 42. Southwest wind around 14 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Siasconset MA
 41.35°N 70.01°W (Elev. 0 ft)
Last Update:
12:33 pm EST Jan 7, 2026
Forecast Valid:
6pm EST Jan 7, 2026-6pm EST Jan 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation