Mercer County Weather in August
Average highs run from 88°F on August 1 to 83°F on August 31, and lows from 57°F to 49°F. Normal precipitation for the month is 1.85 in over about 5 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
- 86°F
- Average low
- 54°F
- Precipitation
- 1.85 in
- Record high
- 106°FAug 17, 2003
- Record low
- 30°FAug 27, 1982
- Chance of a freeze
- 4%
- Days of 90°F or more
- 11.5
- Daylight
- 14 h 55 min to 13 h 24 min
- Cloud cover
- 50%
- Humidity
- 57%
- Dew point
- 52°F
- Wind
- 10.3 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 | 88°F | 57°F | 100°F 1989 | 41°F 1968 | 18% | 0% |
| Aug 2 | 88°F | 57°F | 100°F 1957 | 37°F 2002 | 18% | 0% |
| Aug 3 | 88°F | 57°F | 101°F 1959 | 36°F 1978 | 18% | 0% |
| Aug 4 | 88°F | 56°F | 105°F 1959 | 39°F 1974 | 18% | 0% |
| Aug 5 | 88°F | 56°F | 104°F 1964 | 42°F 1974 | 17% | 0% |
| Aug 6 | 88°F | 56°F | 101°F 1988 | 39°F 1976 | 17% | 0% |
| Aug 7 | 88°F | 56°F | 102°F 2002 | 37°F 1989 | 17% | 0% |
| Aug 8 | 87°F | 56°F | 101°F 1992 | 40°F 1989 | 17% | 0% |
| Aug 9 | 87°F | 56°F | 105°F 1958 | 39°F 1966 | 16% | 0% |
| Aug 10 | 87°F | 56°F | 103°F 1988 | 35°F 1997 | 16% | 0% |
| Aug 11 | 87°F | 55°F | 104°F 2000 | 36°F 1977 | 16% | 0% |
| Aug 12 | 87°F | 55°F | 101°F 1958 | 37°F 2004 | 16% | 0% |
| Aug 13 | 87°F | 55°F | 105°F 1978 | 36°F 2004 | 16% | 0% |
| Aug 14 | 87°F | 55°F | 104°F 2003 | 35°F 1979 | 16% | 0% |
| Aug 15 | 87°F | 55°F | 104°F 2003 | 35°F 1979 | 15% | 0% |
| Aug 16 | 86°F | 54°F | 100°F 1971 | 40°F 2002 | 15% | 0% |
| Aug 17 | 86°F | 54°F | 106°F 2003 | 37°F 1968 | 15% | 0% |
| Aug 18 | 86°F | 54°F | 105°F 2003 | 33°F 2002 | 15% | 0% |
| Aug 19 | 86°F | 53°F | 100°F 1973 | 34°F 2004 | 15% | 0% |
| Aug 20 | 86°F | 53°F | 98°F 1963 | 34°F 1956 | 15% | 0% |
| Aug 21 | 85°F | 53°F | 96°F 1962 | 38°F 1986 | 15% | 0% |
| Aug 22 | 85°F | 53°F | 104°F 1960 | 39°F 1974 | 15% | 0% |
| Aug 23 | 85°F | 52°F | 99°F 1961 | 38°F 1987 | 15% | 0% |
| Aug 24 | 85°F | 52°F | 103°F 1976 | 35°F 1958 | 15% | 0% |
| Aug 25 | 84°F | 52°F | 101°F 1991 | 35°F 1992 | 15% | 0% |
| Aug 26 | 84°F | 51°F | 100°F 1984 | 38°F 1992 | 15% | 0% |
| Aug 27 | 84°F | 51°F | 101°F 2003 | 30°F 1982 | 15% | 0% |
| Aug 28 | 84°F | 50°F | 104°F 1959 | 32°F 1988 | 15% | 0% |
| Aug 29 | 83°F | 50°F | 103°F 1961 | 33°F 2000 | 15% | 0% |
| Aug 30 | 83°F | 50°F | 96°F 1972 | 32°F 1988 | 14% | 0% |
| Aug 31 | 83°F | 49°F | 96°F 1966 | 31°F 1992 | 14% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 6:26 AM, sunset 9:21 PM
- August 31
- sunrise 7:05 AM, sunset 8:29 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00320766 (Beulah 1 W), public domain. Records: NOAA GHCN-Daily, station USC00320766, 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.