Mountain Brook Weather in August
Average highs run from 91°F on August 1 to 89°F on August 31, and lows from 72°F to 69°F. Normal precipitation for the month is 4.35 in over about 11 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
- 91°F
- Average low
- 71°F
- Precipitation
- 4.35 in
- Record high
- 105°FAug 15, 2007
- Record low
- 51°FAug 31, 1946
- Chance of a freeze
- 0%
- Days of 90°F or more
- 19.0
- Daylight
- 13 h 47 min to 12 h 54 min
- Cloud cover
- 53%
- Humidity
- 70%
- Dew point
- 68°F
- Wind
- 3.1 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 | 91°F | 72°F | 101°F 1987 | 60°F 1936 | 37% | 0% |
| Aug 2 | 91°F | 72°F | 101°F 2010 | 60°F 1965 | 37% | 0% |
| Aug 3 | 91°F | 72°F | 101°F 2010 | 63°F 1950 | 37% | 0% |
| Aug 4 | 91°F | 72°F | 103°F 1947 | 56°F 1950 | 37% | 0% |
| Aug 5 | 91°F | 72°F | 102°F 1947 | 59°F 1950 | 37% | 0% |
| Aug 6 | 91°F | 72°F | 101°F 1930 | 56°F 1948 | 36% | 0% |
| Aug 7 | 91°F | 72°F | 103°F 1935 | 58°F 1950 | 36% | 0% |
| Aug 8 | 91°F | 72°F | 104°F 1935 | 60°F 1990 | 36% | 0% |
| Aug 9 | 91°F | 72°F | 103°F 2007 | 54°F 1976 | 36% | 0% |
| Aug 10 | 91°F | 72°F | 102°F 2007 | 60°F 1953 | 36% | 0% |
| Aug 11 | 91°F | 72°F | 102°F 2007 | 58°F 1969 | 35% | 0% |
| Aug 12 | 91°F | 72°F | 102°F 2007 | 58°F 1931 | 35% | 0% |
| Aug 13 | 91°F | 72°F | 103°F 2007 | 55°F 2004 | 35% | 0% |
| Aug 14 | 91°F | 72°F | 104°F 2007 | 54°F 2004 | 34% | 0% |
| Aug 15 | 91°F | 72°F | 105°F 2007 | 56°F 2004 | 34% | 0% |
| Aug 16 | 91°F | 72°F | 103°F 1995 | 57°F 1992 | 34% | 0% |
| Aug 17 | 91°F | 71°F | 102°F 1995 | 63°F 1992 | 33% | 0% |
| Aug 18 | 91°F | 71°F | 103°F 1995 | 59°F 1992 | 33% | 0% |
| Aug 19 | 91°F | 71°F | 103°F 1990 | 62°F 1967 | 33% | 0% |
| Aug 20 | 91°F | 71°F | 101°F 1983 | 59°F 1940 | 32% | 0% |
| Aug 21 | 90°F | 71°F | 102°F 1983 | 57°F 1946 | 32% | 0% |
| Aug 22 | 90°F | 71°F | 104°F 2007 | 53°F 1956 | 32% | 0% |
| Aug 23 | 90°F | 71°F | 105°F 2007 | 54°F 1950 | 31% | 0% |
| Aug 24 | 90°F | 71°F | 101°F 1983 | 57°F 1997 | 31% | 0% |
| Aug 25 | 90°F | 70°F | 102°F 1938 | 58°F 1969 | 31% | 0% |
| Aug 26 | 90°F | 70°F | 103°F 1943 | 55°F 1966 | 30% | 0% |
| Aug 27 | 90°F | 70°F | 103°F 1938 | 55°F 2025 | 30% | 0% |
| Aug 28 | 90°F | 70°F | 102°F 1990 | 56°F 1952 | 29% | 0% |
| Aug 29 | 90°F | 70°F | 101°F 1990 | 52°F 1992 | 29% | 0% |
| Aug 30 | 89°F | 70°F | 100°F 1951 | 54°F 1992 | 29% | 0% |
| Aug 31 | 89°F | 69°F | 100°F 1951 | 51°F 1946 | 29% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- August 1
- sunrise 6:00 AM, sunset 7:47 PM
- August 31
- sunrise 6:20 AM, sunset 7:14 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00013876 (Birmingham AP), public domain. Records: NOAA GHCN-Daily, station USW00013876, 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.