Somerville Weather in August
Average highs run from 98°F on August 1 to 96°F on August 31, and lows from 71°F to 68°F. Normal precipitation for the month is 2.81 in over about 6 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 98°F
- Average low
- 70°F
- Precipitation
- 2.81 in
- Record high
- 111°FAug 19, 1909
- Record low
- 59°FAug 14, 1967
- Chance of a freeze
- 0%
- Days of 90°F or more
- 29.1
- Daylight
- 13 h 35 min to 12 h 48 min
- Cloud cover
- 44%
- Humidity
- 65%
- Dew point
- 70°F
- Wind
- 6.7 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 |
|---|---|---|---|---|---|
| Aug 1 | 98°F | 71°F | 105°F 1948 | 66°F 1925 | 17% |
| Aug 2 | 99°F | 71°F | 107°F 1998 | 65°F 1925 | 17% |
| Aug 3 | 99°F | 71°F | 107°F 1998 | 65°F 1949 | 17% |
| Aug 4 | 99°F | 71°F | 107°F 1998 | 66°F 1976 | 17% |
| Aug 5 | 99°F | 71°F | 106°F 1951 | 66°F 1976 | 17% |
| Aug 6 | 99°F | 71°F | 105°F 1951 | 68°F 1973 | 17% |
| Aug 7 | 99°F | 71°F | 105°F 1951 | 69°F 1929 | 18% |
| Aug 8 | 99°F | 71°F | 105°F 1962 | 68°F 1961 | 18% |
| Aug 9 | 99°F | 71°F | 107°F 1962 | 65°F 1989 | 18% |
| Aug 10 | 99°F | 71°F | 110°F 1962 | 62°F 1989 | 18% |
| Aug 11 | 99°F | 71°F | 110°F 1962 | 66°F 1989 | 19% |
| Aug 12 | 99°F | 71°F | 109°F 1969 | 64°F 1931 | 19% |
| Aug 13 | 99°F | 70°F | 109°F 1962 | 61°F 2004 | 19% |
| Aug 14 | 98°F | 70°F | 106°F 1962 | 59°F 1967 | 19% |
| Aug 15 | 98°F | 70°F | 104°F 1917 | 62°F 1929 | 20% |
| Aug 16 | 98°F | 70°F | 105°F 1948 | 63°F 2004 | 20% |
| Aug 17 | 98°F | 70°F | 106°F 1951 | 61°F 1992 | 20% |
| Aug 18 | 98°F | 70°F | 109°F 1909 | 62°F 1992 | 21% |
| Aug 19 | 98°F | 70°F | 111°F 1909 | 66°F 2013 | 21% |
| Aug 20 | 98°F | 70°F | 105°F 1948 | 64°F 1927 | 21% |
| Aug 21 | 98°F | 70°F | 106°F 1948 | 61°F 1940 | 22% |
| Aug 22 | 97°F | 70°F | 106°F 1917 | 63°F 1940 | 22% |
| Aug 23 | 97°F | 70°F | 106°F 1917 | 63°F 1949 | 22% |
| Aug 24 | 97°F | 70°F | 106°F 1980 | 63°F 1961 | 22% |
| Aug 25 | 97°F | 69°F | 106°F 1980 | 62°F 1961 | 23% |
| Aug 26 | 97°F | 69°F | 104°F 1952 | 63°F 1926 | 23% |
| Aug 27 | 97°F | 69°F | 106°F 1990 | 61°F 1926 | 23% |
| Aug 28 | 96°F | 69°F | 109°F 2011 | 61°F 1926 | 23% |
| Aug 29 | 96°F | 69°F | 109°F 2011 | 61°F 1992 | 24% |
| Aug 30 | 96°F | 69°F | 106°F 2011 | 63°F 1968 | 24% |
| Aug 31 | 96°F | 68°F | 106°F 1954 | 62°F 1915 | 24% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 6:45 AM, sunset 8:20 PM
- August 31
- sunrise 7:02 AM, sunset 7:50 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.