McNairy County Weather in August
Average highs run from 90°F on August 1 to 88°F on August 31, and lows from 69°F to 66°F. Normal precipitation for the month is 3.84 in over about 9 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
- 90°F
- Average low
- 68°F
- Precipitation
- 3.84 in
- Record high
- 107°FAug 16, 2007
- Record low
- 45°FAug 28, 1968
- Chance of a freeze
- 0%
- Days of 90°F or more
- 16.6
- Daylight
- 13 h 54 min to 12 h 56 min
- Cloud cover
- 48%
- Humidity
- 67%
- Dew point
- 67°F
- Wind
- 3.4 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 | 90°F | 69°F | 104°F 1986 | 50°F 1971 | 31% | 0% |
| Aug 2 | 90°F | 69°F | 99°F 1980 | 53°F 1965 | 31% | 0% |
| Aug 3 | 90°F | 69°F | 100°F 1964 | 54°F 1969 | 31% | 0% |
| Aug 4 | 90°F | 69°F | 106°F 2011 | 52°F 1969 | 31% | 0% |
| Aug 5 | 90°F | 69°F | 102°F 1964 | 53°F 1969 | 31% | 0% |
| Aug 6 | 90°F | 69°F | 99°F 2010 | 55°F 1969 | 30% | 0% |
| Aug 7 | 90°F | 69°F | 98°F 1983 | 53°F 2004 | 30% | 0% |
| Aug 8 | 90°F | 69°F | 100°F 1980 | 50°F 1989 | 30% | 0% |
| Aug 9 | 90°F | 69°F | 102°F 1980 | 50°F 1976 | 30% | 0% |
| Aug 10 | 90°F | 69°F | 102°F 2007 | 53°F 1976 | 30% | 0% |
| Aug 11 | 90°F | 69°F | 102°F 2007 | 54°F 1969 | 29% | 0% |
| Aug 12 | 90°F | 68°F | 100°F 1999 | 49°F 1967 | 29% | 0% |
| Aug 13 | 90°F | 68°F | 102°F 2007 | 46°F 1967 | 29% | 0% |
| Aug 14 | 90°F | 68°F | 103°F 2007 | 50°F 2004 | 29% | 0% |
| Aug 15 | 90°F | 68°F | 103°F 2007 | 47°F 1963 | 28% | 0% |
| Aug 16 | 90°F | 68°F | 107°F 2007 | 47°F 1963 | 28% | 0% |
| Aug 17 | 90°F | 68°F | 105°F 2007 | 52°F 1979 | 28% | 0% |
| Aug 18 | 90°F | 68°F | 101°F 2000 | 54°F 1976 | 28% | 0% |
| Aug 19 | 90°F | 68°F | 100°F 2007 | 58°F 1962 | 27% | 0% |
| Aug 20 | 90°F | 68°F | 100°F 1962 | 55°F 1991 | 27% | 0% |
| Aug 21 | 90°F | 67°F | 99°F 1962 | 55°F 2024 | 27% | 0% |
| Aug 22 | 89°F | 67°F | 100°F 1980 | 52°F 1978 | 26% | 0% |
| Aug 23 | 89°F | 67°F | 103°F 2007 | 53°F 1973 | 26% | 0% |
| Aug 24 | 89°F | 67°F | 105°F 2007 | 50°F 1966 | 26% | 0% |
| Aug 25 | 89°F | 67°F | 102°F 2007 | 52°F 1985 | 26% | 0% |
| Aug 26 | 89°F | 67°F | 100°F 1978 | 49°F 1966 | 25% | 0% |
| Aug 27 | 89°F | 67°F | 99°F 1990 | 51°F 1958 | 25% | 0% |
| Aug 28 | 89°F | 66°F | 101°F 2007 | 45°F 1968 | 25% | 0% |
| Aug 29 | 89°F | 66°F | 101°F 1990 | 47°F 1968 | 25% | 0% |
| Aug 30 | 88°F | 66°F | 104°F 2000 | 48°F 1965 | 25% | 0% |
| Aug 31 | 88°F | 66°F | 101°F 2000 | 51°F 1965 | 25% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 6:03 AM, sunset 7:57 PM
- August 31
- sunrise 6:26 AM, sunset 7:22 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00408160 (Selmer), public domain. Records: NOAA GHCN-Daily, station USC00408160, 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.