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

41°F

5°C

Humidity 60%
Wind Speed SE 15 mph
Barometer 30.49 in (1032.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 15 Mar 2:53 pm EDT
Extended Forecast for

3 Miles NNE Siasconset MA

High Wind Watch March 16, 05:00pm until March 17, 06:00am
Click here for hazard details and duration
High Wind Watch

  • Tonight

    Tonight: Increasing clouds, with a low around 39. Breezy, with a southeast wind 10 to 15 mph increasing to 17 to 22 mph after midnight.

    Low: 39 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Monday

    Monday: Rain and thunderstorms before 11am, then rain likely and possibly a thunderstorm between 11am and 1pm, then a chance of rain and thunderstorms after 1pm. Patchy dense fog. High near 53. Windy, with a southeast wind 26 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain and
    Patchy Dense
    Fog

  • Monday Night

    Monday Night: Rain before 11pm, then rain and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Areas of dense fog. Low around 37. Windy, with a south wind 30 to 37 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain and
    Areas Dense
    Fog

  • Tuesday

    Tuesday: Rain, mainly before 8am. Patchy fog before 8am. High near 44. Windy, with a west wind 24 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Rain and
    Patchy Fog
    then Mostly
    Sunny and
    Windy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28. Windy, with a west wind 20 to 28 mph.

    Low: 28 °F

    Mostly Clear
    and Windy

  • Wednesday

    Wednesday: Sunny, with a high near 34. Northwest wind 5 to 15 mph.

    High: 34 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. South wind around 6 mph.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 39. Southeast wind 7 to 10 mph.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36. Southeast wind around 8 mph becoming southwest after midnight.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 39. Breezy, with a southeast wind 10 to 15 mph increasing to 17 to 22 mph after midnight.
Monday
Rain and thunderstorms before 11am, then rain likely and possibly a thunderstorm between 11am and 1pm, then a chance of rain and thunderstorms after 1pm. Patchy dense fog. High near 53. Windy, with a southeast wind 26 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Rain before 11pm, then rain and possibly a thunderstorm between 11pm and 2am, then rain after 2am. Areas of dense fog. Low around 37. Windy, with a south wind 30 to 37 mph, with gusts as high as 60 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Rain, mainly before 8am. Patchy fog before 8am. High near 44. Windy, with a west wind 24 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Mostly clear, with a low around 28. Windy, with a west wind 20 to 28 mph.
Wednesday
Sunny, with a high near 34. Northwest wind 5 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 31. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 39. Southeast wind 7 to 10 mph.
Thursday Night
Partly cloudy, with a low around 36. Southeast wind around 8 mph becoming southwest after midnight.
Friday
Mostly sunny, with a high near 42. Southwest wind 8 to 10 mph.
Friday Night
Mostly cloudy, with a low around 37. Southwest wind 9 to 11 mph.
Saturday
A chance of showers. Partly sunny, with a high near 43. Southwest wind 15 to 18 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 34. Breezy, with a west wind 17 to 23 mph.
Sunday
Mostly sunny, with a high near 40. Breezy, with a west wind around 22 mph.
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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:
1:36 pm EDT Mar 15, 2026
Forecast Valid:
3pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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