Mercer Weather in August
Average highs run from 77°F on August 1 to 73°F on August 31, and lows from 54°F to 51°F. Normal precipitation for the month is 3.30 in over about 10 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
- 76°F
- Average low
- 53°F
- Precipitation
- 3.30 in
- Record high
- 103°FAug 4, 1947
- Record low
- 30°FAug 23, 1934
- Chance of a freeze
- 6%
- Days of 90°F or more
- 0.5
- Daylight
- 14 h 48 min to 13 h 20 min
- Cloud cover
- 56%
- Humidity
- 77%
- Dew point
- 57°F
- Wind
- 7.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Aug 1 | 77°F | 54°F | 97°F 2006 | 33°F 1995 | 33% | 0% |
| Aug 2 | 77°F | 54°F | 93°F 1926 | 38°F 1927 | 33% | 0% |
| Aug 3 | 77°F | 54°F | 98°F 1926 | 42°F 1914 | 33% | 0% |
| Aug 4 | 77°F | 54°F | 103°F 1947 | 36°F 1994 | 33% | 0% |
| Aug 5 | 77°F | 53°F | 103°F 1947 | 38°F 1927 | 33% | 0% |
| Aug 6 | 77°F | 53°F | 92°F 2001 | 37°F 1989 | 33% | 0% |
| Aug 7 | 77°F | 53°F | 94°F 1937 | 40°F 1989 | 33% | 0% |
| Aug 8 | 77°F | 53°F | 92°F 2001 | 38°F 1922 | 33% | 0% |
| Aug 9 | 77°F | 53°F | 95°F 1947 | 35°F 1927 | 33% | 0% |
| Aug 10 | 77°F | 53°F | 98°F 1947 | 33°F 1924 | 33% | 0% |
| Aug 11 | 77°F | 53°F | 96°F 1947 | 37°F 1967 | 32% | 0% |
| Aug 12 | 76°F | 53°F | 96°F 1947 | 32°F 1992 | 32% | 0% |
| Aug 13 | 76°F | 53°F | 91°F 1947 | 32°F 1992 | 32% | 0% |
| Aug 14 | 76°F | 53°F | 90°F 1938 | 35°F 2004 | 32% | 0% |
| Aug 15 | 76°F | 53°F | 92°F 1936 | 36°F 1929 | 32% | 0% |
| Aug 16 | 76°F | 53°F | 95°F 1937 | 39°F 1989 | 32% | 0% |
| Aug 17 | 76°F | 53°F | 95°F 1925 | 35°F 1997 | 33% | 0% |
| Aug 18 | 76°F | 53°F | 98°F 1925 | 32°F 1915 | 33% | 0% |
| Aug 19 | 75°F | 53°F | 91°F 1916 | 34°F 1934 | 33% | 0% |
| Aug 20 | 75°F | 53°F | 89°F 1916 | 32°F 1950 | 33% | 0% |
| Aug 21 | 75°F | 52°F | 97°F 1947 | 32°F 2004 | 33% | 0% |
| Aug 22 | 75°F | 52°F | 95°F 1947 | 31°F 1920 | 33% | 0% |
| Aug 23 | 75°F | 52°F | 96°F 1948 | 30°F 1934 | 33% | 0% |
| Aug 24 | 75°F | 52°F | 99°F 1948 | 33°F 1942 | 33% | 0% |
| Aug 25 | 74°F | 52°F | 95°F 1948 | 33°F 1917 | 33% | 0% |
| Aug 26 | 74°F | 52°F | 94°F 1948 | 35°F 1996 | 33% | 0% |
| Aug 27 | 74°F | 52°F | 91°F 1973 | 30°F 1934 | 33% | 0% |
| Aug 28 | 74°F | 51°F | 90°F 1937 | 34°F 1916 | 33% | 0% |
| Aug 29 | 73°F | 51°F | 88°F 1924 | 31°F 1917 | 33% | 0% |
| Aug 30 | 73°F | 51°F | 89°F 2010 | 30°F 1915 | 33% | 0% |
| Aug 31 | 73°F | 51°F | 90°F 1930 | 30°F 2001 | 34% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 5:42 AM, sunset 8:30 PM
- August 31
- sunrise 6:20 AM, sunset 7:40 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00477092 (Rest Lake), public domain. Records: NOAA GHCN-Daily, station USC00477092, 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.