Flooding Concerns in Puerto Rico; Thunderstorms Across the Southeast U.S.

Showers and thunderstorms capable of producing widespread heavy rainfall will be possible across much of Puerto Rico today. Heavy rainfall will likely lead to flash, urban and small stream flooding. Some areas may face life-threatening flooding. In the Southeast U.S., strong to marginally severe thunderstorms will be possible this afternoon. Read More >

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Current conditions at

Nantucket, Nantucket Memorial Airport (KACK)

Lat: 41.25°NLon: 70.06°WElev: 46ft.

Fair

50°F

10°C

Humidity	68%
Wind Speed	E 14 mph
Barometer	30.13 in (1020.3 mb)
Dewpoint	40°F (4°C)
Visibility	10.00 mi
Wind Chill	45°F (7°C)
Last update	19 Apr 4:53 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast

Extended Forecast for

Nantucket MA

Tonight

Mostly Cloudy
then Chance
Showers
Low: 44 °F
Saturday

Showers and
Patchy Fog
High: 55 °F
Saturday
Night

Slight Chance
Showers then
Mostly Clear
Low: 43 °F
Sunday

Mostly Sunny
High: 55 °F
Sunday
Night

Mostly Cloudy
and Breezy
then Mostly
Cloudy
Low: 45 °F
Monday

Mostly Sunny
High: 57 °F
Monday
Night

Mostly Clear
Low: 41 °F
Tuesday

Sunny
High: 54 °F
Tuesday
Night

Mostly Cloudy
Low: 44 °F

Detailed Forecast

Tonight

A chance of showers, mainly after 2am. Mostly cloudy, with a low around 44. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Showers, mainly before 5pm. Patchy fog before 10am. High near 55. South wind around 11 mph becoming west in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night

A slight chance of showers before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Northwest wind 11 to 16 mph. Chance of precipitation is 20%.

Sunday

Mostly sunny, with a high near 55. Southwest wind 13 to 18 mph.

Sunday Night

Mostly cloudy, with a low around 45. Breezy, with a southwest wind 15 to 20 mph.

Monday

Mostly sunny, with a high near 57. West wind around 11 mph.

Monday Night

Mostly clear, with a low around 41. South wind around 10 mph.

Tuesday

Sunny, with a high near 54. South wind 11 to 15 mph.

Tuesday Night

Mostly cloudy, with a low around 44. South wind around 16 mph.

Wednesday

A chance of showers after 11am. Mostly cloudy, with a high near 54. Breezy, with a south wind 18 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

Wednesday Night

A chance of showers. Partly cloudy, with a low around 38. Northwest wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

Thursday

Mostly sunny, with a high near 51. Breezy, with a west wind around 21 mph, with gusts as high as 31 mph.

Thursday Night

Mostly clear, with a low around 42. Breezy, with a west wind 17 to 20 mph, with gusts as high as 30 mph.

Friday

Sunny, with a high near 52. West wind around 17 mph.