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

33°F

1°C

Humidity 66%
Wind Speed E 8 mph
Barometer 30.12 in (1020.0 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 16 Feb 3:53 am EST
Extended Forecast for

3 Miles NNE Siasconset MA

  • Overnight

    Overnight: A slight chance of snow. Cloudy, with a low around 30. East wind around 11 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Snow

  • Washington's Birthday

    Washington's Birthday: A slight chance of snow before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 36. East wind around 14 mph. Chance of precipitation is 20%.

    High: 36 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Northeast wind 6 to 10 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 36. Northwest wind 5 to 7 mph becoming southwest in the afternoon.

    High: 36 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. West wind around 8 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain before noon, then a chance of snow between noon and 1pm, then rain likely after 1pm. Cloudy, with a high near 37. West wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 37 °F

    Slight Chance
    Rain then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain likely before 11pm, then rain and snow likely between 11pm and 3am, then a chance of snow after 3am. Cloudy, with a low around 32. Southeast wind 9 to 14 mph becoming northwest in the evening. Chance of precipitation is 70%.

    Low: 32 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Partly sunny, with a high near 36. North wind 9 to 13 mph.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. North wind around 7 mph.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of snow. Cloudy, with a low around 30. East wind around 11 mph. Chance of precipitation is 20%.
Washington's Birthday
A slight chance of snow before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 36. East wind around 14 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 31. Northeast wind 6 to 10 mph.
Tuesday
Partly sunny, with a high near 36. Northwest wind 5 to 7 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 33. West wind around 8 mph.
Wednesday
A slight chance of rain before noon, then a chance of snow between noon and 1pm, then rain likely after 1pm. Cloudy, with a high near 37. West wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Rain likely before 11pm, then rain and snow likely between 11pm and 3am, then a chance of snow after 3am. Cloudy, with a low around 32. Southeast wind 9 to 14 mph becoming northwest in the evening. Chance of precipitation is 70%.
Thursday
Partly sunny, with a high near 36. North wind 9 to 13 mph.
Thursday Night
Partly cloudy, with a low around 32. North wind around 7 mph.
Friday
A chance of snow before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Mostly cloudy, with a high near 36. North wind 8 to 13 mph becoming east in the afternoon. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow. Cloudy, with a low around 33. East wind 13 to 16 mph. Chance of precipitation is 50%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 37. Northeast wind 14 to 16 mph. Chance of precipitation is 40%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 32. Northeast wind 11 to 13 mph. Chance of precipitation is 30%.
Sunday
A chance of rain. Mostly cloudy, with a high near 35. North wind 13 to 15 mph. Chance of precipitation is 30%.
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Forecast Area
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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:
1:43 am EST Feb 16, 2026
Forecast Valid:
4am EST Feb 16, 2026-6pm EST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation