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Widespread Showers and Thunderstorms in Southern California and the Southern Plains into the Mississippi Valley

Isolated strong to severe thunderstorms and widespread heavy rainfall are possible across the southern Plains into Arkansas. Widespread showers with a slight chance of thunderstorms are possible across southern California. Urban flooding, rock and mudslides as well as minor debris flows near burn scars are possible. Read More >

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Overcast

40°F

4°C

Humidity 79%
Wind Speed Calm
Barometer NA
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 21 Nov 3:53 am EST
Extended Forecast for

2 Miles ENE Siasconset MA

  • Overnight

    Overnight: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 50. Light south wind becoming southwest 6 to 11 mph in the morning.

    High: 50 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain, mainly after 4am. Patchy fog after 4am. Otherwise, cloudy, with a low around 45. West wind 6 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Cloudy then
    Chance Rain
    and Patchy
    Fog

  • Saturday

    Saturday: A chance of rain, mainly before 2pm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 49. North wind 7 to 14 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. North wind 10 to 14 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 44. West wind 9 to 11 mph.

    High: 44 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. West wind around 11 mph.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 48. Northwest wind around 14 mph.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43. Northwest wind 7 to 10 mph.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 39. Calm wind.
Friday
Partly sunny, with a high near 50. Light south wind becoming southwest 6 to 11 mph in the morning.
Friday Night
A chance of rain, mainly after 4am. Patchy fog after 4am. Otherwise, cloudy, with a low around 45. West wind 6 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of rain, mainly before 2pm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 49. North wind 7 to 14 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Mostly clear, with a low around 38. North wind 10 to 14 mph.
Sunday
Mostly sunny, with a high near 44. West wind 9 to 11 mph.
Sunday Night
Partly cloudy, with a low around 42. West wind around 11 mph.
Monday
Sunny, with a high near 48. Northwest wind around 14 mph.
Monday Night
Partly cloudy, with a low around 43. Northwest wind 7 to 10 mph.
Tuesday
Mostly cloudy, with a high near 49. South wind 7 to 11 mph.
Tuesday Night
Rain likely. Cloudy, with a low around 47. South wind 10 to 13 mph. Chance of precipitation is 70%.
Wednesday
Rain likely. Mostly cloudy, with a high near 52. Southwest wind around 14 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 46. South wind 11 to 13 mph. Chance of precipitation is 50%.
Thanksgiving Day
A chance of rain. Partly sunny, with a high near 50. Southwest wind 14 to 16 mph. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
Last Update:
12:32 am EST Nov 21, 2025
Forecast Valid:
3am EST Nov 21, 2025-6pm EST Nov 27, 2025
 
Forecast Discussion
 
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Additional Resources

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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