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.

Fog/Mist

32°F

0°C

Humidity 96%
Wind Speed S 3 mph
Barometer 30.10 in (1019.4 mb)
Dewpoint 31°F (-1°C)
Visibility 4.00 mi
Last update 18 Jan 6:53 am EST
Extended Forecast for

3 Miles NNE Siasconset MA

  • Today

    Today: Snow before 11am, then rain. High near 39. Light and variable wind becoming northeast 6 to 11 mph in the morning. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    then Rain

  • Tonight

    Tonight: Rain before midnight, then snow. Low around 32. Northeast wind 10 to 16 mph becoming northwest after midnight. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain then
    Snow

  • M.L.King Day

    M.L.King Day: A chance of snow before 7am, then a chance of snow showers between 7am and 11am. Partly sunny, with a high near 36. Breezy, with a west wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 36 °F

    Chance Snow
    then Partly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26. Windy, with a west wind 24 to 29 mph.

    Low: 26 °F

    Mostly Cloudy
    and Windy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 27. Breezy, with a west wind 20 to 25 mph.

    High: 27 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21. Breezy, with a west wind 16 to 23 mph.

    Low: 21 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. West wind 11 to 16 mph becoming southwest in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35. Southwest wind 16 to 18 mph, with gusts as high as 28 mph.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers before noon. Partly sunny, with a high near 40. Breezy, with a southwest wind 16 to 20 mph. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Showers then
    Partly Sunny
    and Breezy

Detailed Forecast

Today
Snow before 11am, then rain. High near 39. Light and variable wind becoming northeast 6 to 11 mph in the morning. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tonight
Rain before midnight, then snow. Low around 32. Northeast wind 10 to 16 mph becoming northwest after midnight. Chance of precipitation is 100%. Little or no snow accumulation expected.
M.L.King Day
A chance of snow before 7am, then a chance of snow showers between 7am and 11am. Partly sunny, with a high near 36. Breezy, with a west wind 13 to 18 mph increasing to 20 to 25 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 26. Windy, with a west wind 24 to 29 mph.
Tuesday
Mostly sunny, with a high near 27. Breezy, with a west wind 20 to 25 mph.
Tuesday Night
Partly cloudy, with a low around 21. Breezy, with a west wind 16 to 23 mph.
Wednesday
Mostly sunny, with a high near 38. West wind 11 to 16 mph becoming southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 35. Southwest wind 16 to 18 mph, with gusts as high as 28 mph.
Thursday
A chance of showers before noon. Partly sunny, with a high near 40. Breezy, with a southwest wind 16 to 20 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 26. Breezy, with a west wind 18 to 21 mph.
Friday
Mostly sunny, with a high near 35. West wind 13 to 17 mph.
Friday Night
Mostly cloudy, with a low around 30. West wind around 13 mph.
Saturday
A chance of rain and snow showers. Mostly cloudy, with a high near 37. Southwest wind 13 to 15 mph. Chance of precipitation is 40%.
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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:
6:21 am EST Jan 18, 2026
Forecast Valid:
7am EST Jan 18, 2026-6pm EST Jan 24, 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