As of 09:55 EDT

Weather in Nantucket, MA

59°Current weather

Nantucket, Thursday, 15 October, 09:55

Overcast. Feels like 57°. High 62°, low 55°.

Pressure30.15 inHg
Wind18.4 mph N
Humidity65%
Visibility6.2 mi
Dew point47°

Monthly outlook for Nantucket, MA: average high 56.3°, average low 50.9°. That is 0.7° below the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 5 days and 2.4 inches. The warmest day looks like 16 October (66°), the coolest 18 October (45.8°).

56.3°/50.9°
Average high / low
−0.7°
Below normal
5 / 5
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October57.2°58.2°-0.6°
25 October – 3 November54.8°55.9°-0.6°
4 November – 13 Novemberat normal53.7°—

October records over 66 years

72.1°1 October 2010All-time high
37.9°23 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Pocomo (3 mi).

Fri, 1666° / 55°0.06Light rain
66 °Light rain

Nantucket, Friday, 16 October

Light rain. High 66°, low 55°.

Pressure29.85 inHg
Wind22.7 mph S
Humidity86%
Visibility2.5 mi
Dew point58°
Sat, 1764° / 49°0.05Light rain
64 °Light rain

Nantucket, Saturday, 17 October

Light rain. High 64°, low 49°.

Pressure30.00 inHg
Wind22.5 mph NW
Humidity66%
Visibility6.2 mi
Dew point41°
Sun, 1851° / 46°0Clear
51 °Clear

Nantucket, Sunday, 18 October

Clear. High 51°, low 46°.

Pressure30.56 inHg
Wind10.2 mph N
Humidity54%
Visibility6.2 mi
Dew point31°
Mon, 1956° / 51°0Clear
56 °Clear

Nantucket, Monday, 19 October

Clear. High 56°, low 51°.

Pressure30.59 inHg
Wind11.8 mph S
Humidity61%
Visibility—
Dew point40°
Tue, 2057° / 56°0Clear
57 °Clear

Nantucket, Tuesday, 20 October

Clear. High 57°, low 56°.

Pressure30.36 inHg
Wind8.2 mph SW
Humidity74%
Visibility—
Dew point48°
Wed, 2157° / 54°0Partly cloudy
57 °Partly cloudy

Nantucket, Wednesday, 21 October

Partly cloudy. High 57°, low 54°.

Pressure30.30 inHg
Wind19.4 mph NE
Humidity78%
Visibility—
Dew point51°
Thu, 2254° / 51°0Overcast
54 °Overcast

Nantucket, Thursday, 22 October

Overcast. High 54°, low 51°.

Pressure30.39 inHg
Wind17.6 mph NE
Humidity64%
Visibility—
Dew point41°
Fri, 2352° / 49°0.66Rain
52 °Rain

Nantucket, Friday, 23 October

Rain. High 52°, low 49°.

Pressure30.27 inHg
Wind36.3 mph NE
Humidity85%
Visibility—
Dew point47°
Sat, 2452° / 50°0.04Light rain
52 °Light rain

Nantucket, Saturday, 24 October

Light rain. High 52°, low 50°.

Pressure30.53 inHg
Wind34.7 mph NE
Humidity61%
Visibility—
Dew point37°
Sun, 2553° / 51°0.03Light rain
53 °Light rain

Nantucket, Sunday, 25 October

Light rain. High 53°, low 51°.

Pressure30.42 inHg
Wind34.5 mph NE
Humidity73%
Visibility—
Dew point43°
Mon, 2656° / 52°0Clear
56 °Clear

Nantucket, Monday, 26 October

Clear. High 56°, low 52°.

Pressure30.21 inHg
Wind32.8 mph N
Humidity68%
Visibility—
Dew point42°
Tue, 2757° / 50°0Overcast
57 °Overcast

Nantucket, Tuesday, 27 October

Overcast. High 57°, low 50°.

Pressure30.36 inHg
Wind26.7 mph N
Humidity66%
Visibility—
Dew point39°
Wed, 2859° / 50°0Overcast
59 °Overcast

Nantucket, Wednesday, 28 October

Overcast. High 59°, low 50°.

Pressure29.97 inHg
Wind32.1 mph W
Humidity78%
Visibility—
Dew point52°
Thu, 2949° / 47°0.01Light rain
49 °Light rain

Nantucket, Thursday, 29 October

Light rain. High 49°, low 47°.

Pressure30.36 inHg
Wind22.4 mph N
Humidity63%
Visibility—
Dew point35°
Fri, 3055° / 49°0.15Light rain
55 °Light rain

Nantucket, Friday, 30 October

Light rain. High 55°, low 49°.

Pressure30.18 inHg
Wind11.3 mph W
Humidity89%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3155° / 51°0.09Climate normal
55 °Climate normal

Nantucket, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high55°
Average low51°
Average precipitation0.09 in
Chance of precipitation22%
Record high65° (2019)
Record low40° (1988)
Sun, 0156° / 51°0.11Climate normal
56 °Climate normal

Nantucket, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high56°
Average low51°
Average precipitation0.11 in
Chance of precipitation30%
Record high66° (2019)
Record low42° (1976)
Mon, 0256° / 50°0.15Climate normal
56 °Climate normal

Nantucket, Monday, 2 November

Climate normal for this date — 60-year average.

Average high56°
Average low50°
Average precipitation0.15 in
Chance of precipitation28%
Record high65° (1971)
Record low35° (1965)
Tue, 0355° / 50°0.24Climate normal
55 °Climate normal

Nantucket, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high55°
Average low50°
Average precipitation0.24 in
Chance of precipitation33%
Record high64° (1971)
Record low39° (2002)
Wed, 0455° / 49°0.06Climate normal
55 °Climate normal

Nantucket, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high55°
Average low49°
Average precipitation0.06 in
Chance of precipitation20%
Record high61° (2017)
Record low40° (1989)
Thu, 0555° / 50°0.17Climate normal
55 °Climate normal

Nantucket, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high55°
Average low50°
Average precipitation0.17 in
Chance of precipitation38%
Record high63° (2022)
Record low37° (1965)
Fri, 0655° / 50°0.14Climate normal
55 °Climate normal

Nantucket, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°
Average low50°
Average precipitation0.14 in
Chance of precipitation42%
Record high64° (2022)
Record low40° (1987)
Sat, 0754° / 49°0.1Climate normal
54 °Climate normal

Nantucket, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low49°
Average precipitation0.1 in
Chance of precipitation30%
Record high65° (2022)
Record low38° (2002)
Sun, 0854° / 47°0.19Climate normal
54 °Climate normal

Nantucket, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high54°
Average low47°
Average precipitation0.19 in
Chance of precipitation32%
Record high62° (2022)
Record low37° (2019)
Mon, 0953° / 48°0.11Climate normal
53 °Climate normal

Nantucket, Monday, 9 November

Climate normal for this date — 60-year average.

Average high53°
Average low48°
Average precipitation0.11 in
Chance of precipitation32%
Record high61° (1989)
Record low34° (1976)
Tue, 1054° / 48°0.19Climate normal
54 °Climate normal

Nantucket, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high54°
Average low48°
Average precipitation0.19 in
Chance of precipitation42%
Record high61° (2018)
Record low34° (2017)
Wed, 1153° / 47°0.12Climate normal
53 °Climate normal

Nantucket, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high53°
Average low47°
Average precipitation0.12 in
Chance of precipitation37%
Record high64° (2022)
Record low32° (2017)
Thu, 1253° / 46°0.19Climate normal
53 °Climate normal

Nantucket, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high53°
Average low46°
Average precipitation0.19 in
Chance of precipitation35%
Record high65° (2022)
Record low34° (1976)
Fri, 1352° / 45°0.21Climate normal
52 °Climate normal

Nantucket, Friday, 13 November

Climate normal for this date — 60-year average.

Average high52°
Average low45°
Average precipitation0.21 in
Chance of precipitation47%
Record high62° (1975)
Record low28° (2019)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Nantucket, MA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Nantucket, MA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.