Nantucket weather live forecast

Today's maximum temperature in Nantucket is expected to be 22°C. Select a day from the live weather forecast for Nantucket, Massachusetts, USA for more weather parameters.

Thursday
17th Sep
22

18

9

6
Friday
18th Sep
21

18

5

6
Saturday
19th Sep
18

14

4

6
Sunday
20th Sep
19

14

1

3
Monday
21st Sep
19

15

0

2

5-day weather forecast updated at 04:01 on Thursday 17th September 2026 GMT

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The 5-day weather forecast for Massachusetts (Nantucket) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Nantucket weather forecast by day

Below are the detailed weather forecasts for Nantucket for the next 5 days.

Nantucket weather for Thursday 17th September 2026

Expect scattered clouds in Nantucket, Massachusetts with a maximum temperature of 22°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south.

22
°C maximum temperature
18
°C minimum temperature
scattered clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
22
°C wind chill
12
kph wind from S

Nantucket weather for Friday 18th September 2026

Expect sunshine and showers in Nantucket, Massachusetts with a maximum temperature of 21°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 33% chance of some rain and a gentle breeze of 14 kph from the north.

21
°C maximum temperature
18
°C minimum temperature
sunshine and showers
5
hours of sunshine
6
UV index (High)
33
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
14
kph wind from N

Nantucket weather for Saturday 19th September 2026

Expect broken clouds in Nantucket, Massachusetts with a maximum temperature of 18°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-east.

18
°C maximum temperature
14
°C minimum temperature
broken clouds
4
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
18
°C wind chill
17
kph wind from NE

Nantucket weather for Sunday 20th September 2026

Expect mostly cloudy with rain in Nantucket, Massachusetts with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 76% chance of some rain and a gentle breeze of 17 kph from the south-east.

19
°C maximum temperature
14
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
3
UV index (Moderate)
76
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
17
kph wind from SE

Nantucket weather for Monday 21st September 2026

Expect mostly cloudy with rain in Nantucket, Massachusetts with a maximum temperature of 19°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 43% chance of some rain and a moderate breeze of 21 kph from the north-east.