Somerville Weather in October
Average highs run from 88°F on October 1 to 78°F on October 31, and lows from 59°F to 48°F. Normal precipitation for the month is 4.34 in over about 7 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
- 83°F
- Average low
- 53°F
- Precipitation
- 4.34 in
- Record high
- 99°FOct 4, 1937
- Record low
- 29°FOct 30, 1917
- Chance of a freeze
- 21%
- Days of 90°F or more
- 7.6
- Daylight
- 11 h 51 min to 10 h 59 min
- Cloud cover
- 43%
- Humidity
- 71%
- Dew point
- 58°F
- Wind
- 7.8 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 | 88°F | 59°F | 98°F 1926 | 45°F 1984 | 22% |
| Oct 2 | 88°F | 58°F | 98°F 1926 | 44°F 1984 | 22% |
| Oct 3 | 88°F | 58°F | 98°F 1911 | 45°F 1975 | 22% |
| Oct 4 | 87°F | 58°F | 99°F 1937 | 45°F 1975 | 22% |
| Oct 5 | 87°F | 57°F | 97°F 1911 | 45°F 1975 | 22% |
| Oct 6 | 87°F | 57°F | 98°F 1911 | 46°F 2010 | 22% |
| Oct 7 | 87°F | 56°F | 97°F 1937 | 46°F 1964 | 22% |
| Oct 8 | 86°F | 56°F | 98°F 1939 | 40°F 1952 | 22% |
| Oct 9 | 86°F | 56°F | 96°F 1929 | 40°F 1952 | 22% |
| Oct 10 | 86°F | 55°F | 98°F 1926 | 43°F 1952 | 23% |
| Oct 11 | 85°F | 55°F | 98°F 1926 | 43°F 1990 | 23% |
| Oct 12 | 85°F | 54°F | 98°F 1926 | 41°F 1946 | 23% |
| Oct 13 | 85°F | 54°F | 96°F 1963 | 41°F 1946 | 23% |
| Oct 14 | 84°F | 54°F | 96°F 1991 | 42°F 1946 | 23% |
| Oct 15 | 84°F | 53°F | 97°F 2024 | 44°F 1969 | 23% |
| Oct 16 | 84°F | 53°F | 97°F 2024 | 42°F 2011 | 23% |
| Oct 17 | 83°F | 53°F | 94°F 1929 | 41°F 2001 | 23% |
| Oct 18 | 83°F | 52°F | 94°F 1905 | 39°F 1948 | 23% |
| Oct 19 | 83°F | 52°F | 94°F 2025 | 40°F 1989 | 24% |
| Oct 20 | 82°F | 52°F | 92°F 1927 | 36°F 1989 | 24% |
| Oct 21 | 82°F | 51°F | 96°F 1927 | 37°F 1976 | 24% |
| Oct 22 | 81°F | 51°F | 97°F 1927 | 38°F 1976 | 24% |
| Oct 23 | 81°F | 51°F | 96°F 1927 | 40°F 1928 | 24% |
| Oct 24 | 81°F | 50°F | 98°F 1927 | 39°F 1917 | 24% |
| Oct 25 | 80°F | 50°F | 91°F 1975 | 39°F 1982 | 24% |
| Oct 26 | 80°F | 50°F | 92°F 1927 | 39°F 2005 | 25% |
| Oct 27 | 79°F | 49°F | 95°F 1928 | 34°F 1957 | 25% |
| Oct 28 | 79°F | 49°F | 92°F 1927 | 32°F 1957 | 25% |
| Oct 29 | 79°F | 49°F | 91°F 1929 | 34°F 1925 | 25% |
| Oct 30 | 78°F | 49°F | 93°F 1929 | 29°F 1917 | 25% |
| Oct 31 | 78°F | 48°F | 91°F 1937 | 29°F 1917 | 25% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- October 1
- sunrise 7:20 AM, sunset 7:11 PM
- October 31
- sunrise 7:40 AM, sunset 6:39 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00418446 (Somerville Dam), public domain. Records: NOAA GHCN-Daily, station USC00411048, 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.