Severe Thunderstorms in the Southern U.S.; Heavy Snow in the North-Central U.S.

Isolated severe thunderstorms are likely across parts of the Southeast/Deep South Tuesday morning into early evening. A couple tornadoes are possible in parts of eastern Mississippi and Alabama. In the north-central U.S., a storm will bring heavy snow and gusty to high winds over parts of the northern Plains and Upper Midwest Tuesday before impacting the Great Lakes Wednesday into Thanksgiving. Read More >

Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fair

39°F

4°C

Humidity 93%
Wind Speed SW 5 mph
Barometer 30.30 in (1026.1 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 25 Nov 6:53 am EST
Extended Forecast for

2 Miles ENE Siasconset MA

  • Today

    Today: Mostly cloudy, with a high near 53. Southwest wind 9 to 14 mph.

    High: 53 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain, mainly after 3am.  Patchy fog after 3am. Low around 47. South wind 9 to 15 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance Rain
    then Rain and
    Patchy Fog

  • Wednesday

    Wednesday: Rain, with thunderstorms also possible after 4pm.  Patchy fog. High near 56. Southwest wind 14 to 17 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Rain and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm before midnight, then a slight chance of rain between midnight and 2am.  Patchy fog before 8pm.  Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 42. Southwest wind 14 to 17 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Rain Likely
    and Patchy
    Fog then
    Slight Chance
    Rain

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 49. Breezy, with a west wind 18 to 21 mph.

    High: 49 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 37. Breezy, with a west wind 18 to 20 mph.

    Low: 37 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 44. Breezy, with a west wind around 22 mph, with gusts as high as 32 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. Breezy, with a west wind 22 to 24 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 41. Breezy, with a west wind 14 to 20 mph.

    High: 41 °F

    Sunny and
    Breezy then
    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 53. Southwest wind 9 to 14 mph.
Tonight
Rain, mainly after 3am. Patchy fog after 3am. Low around 47. South wind 9 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain, with thunderstorms also possible after 4pm. Patchy fog. High near 56. Southwest wind 14 to 17 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain likely and possibly a thunderstorm before midnight, then a slight chance of rain between midnight and 2am. Patchy fog before 8pm. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 42. Southwest wind 14 to 17 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thanksgiving Day
Mostly sunny, with a high near 49. Breezy, with a west wind 18 to 21 mph.
Thursday Night
Mostly cloudy, with a low around 37. Breezy, with a west wind 18 to 20 mph.
Friday
Mostly sunny, with a high near 44. Breezy, with a west wind around 22 mph, with gusts as high as 32 mph.
Friday Night
Partly cloudy, with a low around 34. Breezy, with a west wind 22 to 24 mph.
Saturday
Sunny, with a high near 41. Breezy, with a west wind 14 to 20 mph.
Saturday Night
Partly cloudy, with a low around 35. Northwest wind 6 to 11 mph.
Sunday
Partly sunny, with a high near 47. South wind 7 to 11 mph.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 39. South wind 11 to 13 mph. Chance of precipitation is 40%.
Monday
A chance of rain. Mostly cloudy, with a high near 51. Southwest wind 13 to 15 mph. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Siasconset MA
 41.28°N 69.97°W (Elev. 56 ft)
6:00 am EST Nov 25, 2025
7am EST Nov 25, 2025-6pm EST Dec 1, 2025
 
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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