Nantucket County Weather in October
Average highs run from 66°F on October 1 to 57°F on October 31, and lows from 53°F to 44°F. Normal precipitation for the month is 4.39 in over about 13 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 62°F
- Average low
- 49°F
- Precipitation
- 4.39 in
- Record high
- 83°FOct 9, 2011
- Record low
- 22°FOct 31, 1966
- Chance of a freeze
- 20%
- Daylight
- 11 h 45 min to 10 h 27 min
- Cloud cover
- 60%
- Humidity
- 80%
- Dew point
- 51°F
- Wind
- 16.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Oct 1 | 66°F | 53°F | 77°F 1950 | 40°F 1965 | 43% |
| Oct 2 | 66°F | 53°F | 82°F 1971 | 38°F 1972 | 43% |
| Oct 3 | 66°F | 53°F | 76°F 2013 | 36°F 1972 | 43% |
| Oct 4 | 66°F | 52°F | 77°F 1967 | 41°F 1965 | 42% |
| Oct 5 | 65°F | 52°F | 76°F 2005 | 36°F 1965 | 42% |
| Oct 6 | 65°F | 52°F | 74°F 1976 | 31°F 1965 | 42% |
| Oct 7 | 65°F | 51°F | 78°F 1971 | 33°F 1965 | 42% |
| Oct 8 | 64°F | 51°F | 72°F 2005 | 34°F 1954 | 42% |
| Oct 9 | 64°F | 51°F | 83°F 2011 | 36°F 1975 | 42% |
| Oct 10 | 64°F | 50°F | 80°F 2011 | 31°F 1972 | 42% |
| Oct 11 | 63°F | 50°F | 74°F 1955 | 29°F 1972 | 42% |
| Oct 12 | 63°F | 50°F | 74°F 1955 | 32°F 1976 | 42% |
| Oct 13 | 63°F | 50°F | 74°F 2015 | 30°F 1976 | 42% |
| Oct 14 | 63°F | 49°F | 76°F 1971 | 33°F 1951 | 42% |
| Oct 15 | 62°F | 49°F | 75°F 1971 | 35°F 2009 | 42% |
| Oct 16 | 62°F | 49°F | 75°F 1975 | 34°F 1961 | 41% |
| Oct 17 | 62°F | 48°F | 74°F 2016 | 30°F 1965 | 41% |
| Oct 18 | 61°F | 48°F | 70°F 1975 | 29°F 1965 | 41% |
| Oct 19 | 61°F | 48°F | 71°F 2016 | 30°F 1970 | 41% |
| Oct 20 | 61°F | 47°F | 72°F 2021 | 24°F 1972 | 41% |
| Oct 21 | 60°F | 47°F | 73°F 1963 | 23°F 1972 | 40% |
| Oct 22 | 60°F | 47°F | 73°F 2024 | 29°F 1948 | 40% |
| Oct 23 | 60°F | 47°F | 71°F 1971 | 30°F 2008 | 40% |
| Oct 24 | 60°F | 46°F | 76°F 2022 | 28°F 1977 | 40% |
| Oct 25 | 59°F | 46°F | 76°F 2022 | 28°F 2003 | 40% |
| Oct 26 | 59°F | 46°F | 75°F 2022 | 32°F 1972 | 39% |
| Oct 27 | 59°F | 45°F | 72°F 2022 | 30°F 1966 | 39% |
| Oct 28 | 58°F | 45°F | 71°F 1971 | 24°F 1974 | 39% |
| Oct 29 | 58°F | 45°F | 74°F 1971 | 31°F 2004 | 39% |
| Oct 30 | 58°F | 44°F | 73°F 2017 | 28°F 1966 | 39% |
| Oct 31 | 57°F | 44°F | 70°F 1956 | 22°F 1966 | 38% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- October 1
- sunrise 6:37 AM, sunset 6:22 PM
- October 31
- sunrise 7:10 AM, sunset 5:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014756 (Nantucket Mem AP), public domain. Records: NOAA GHCN-Daily, station USW00014756, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.