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

61°F

16°C

Humidity 87%
Wind Speed W 13 mph
Barometer NA
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 4 Oct 1:53 am EDT
Extended Forecast for

2 Miles NNE Siasconset MA

  • Overnight

    Overnight: Clear, with a low around 58. West wind around 11 mph.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 68. West wind 6 to 10 mph.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. Southwest wind around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. South wind 3 to 7 mph.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. Southwest wind around 7 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72. Southwest wind 7 to 11 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. Southwest wind around 10 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. Southwest wind 10 to 15 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 60. Southwest wind around 15 mph. Chance of precipitation is 40%.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 58. West wind around 11 mph.
Saturday
Sunny, with a high near 68. West wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 60. Southwest wind around 6 mph.
Sunday
Sunny, with a high near 73. South wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 61. Southwest wind around 7 mph.
Monday
Sunny, with a high near 72. Southwest wind 7 to 11 mph.
Monday Night
Mostly clear, with a low around 61. Southwest wind around 10 mph.
Tuesday
Mostly sunny, with a high near 70. Southwest wind 10 to 15 mph.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 60. Southwest wind around 15 mph. Chance of precipitation is 40%.
Wednesday
Showers. High near 70. Southwest wind around 15 mph becoming northwest in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 51. North wind 14 to 17 mph. Chance of precipitation is 60%.
Thursday
Sunny, with a high near 59. North wind 15 to 18 mph.
Thursday Night
Mostly clear, with a low around 51. Northeast wind 9 to 11 mph.
Friday
Sunny, with a high near 63. East wind around 10 mph becoming south in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Siasconset MA
 41.31°N 69.99°W (Elev. 49 ft)
Last Update:
1:05 am EDT Oct 4, 2025
Forecast Valid:
2am EDT Oct 4, 2025-6pm EDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation