Grant County Weather in August
Average highs run from 87°F on August 1 to 85°F on August 31, and lows from 66°F to 63°F. Normal precipitation for the month is 3.80 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
- 86°F
- Average low
- 65°F
- Precipitation
- 3.80 in
- Record high
- 107°FAug 19, 1936
- Record low
- 34°FAug 3, 1912
- Chance of a freeze
- 0%
- Days of 90°F or more
- 7.9
- Daylight
- 14 h 09 min to 13 h 03 min
- Cloud cover
- 51%
- Humidity
- 69%
- Dew point
- 63°F
- Wind
- 3.8 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 | 87°F | 66°F | 100°F 1954 | 50°F 1914 | 31% | 0% |
| Aug 2 | 87°F | 66°F | 101°F 1930 | 49°F 1920 | 31% | 0% |
| Aug 3 | 87°F | 66°F | 103°F 1930 | 34°F 1912 | 31% | 0% |
| Aug 4 | 87°F | 66°F | 105°F 1930 | 48°F 1912 | 31% | 0% |
| Aug 5 | 87°F | 66°F | 98°F 1930 | 49°F 1912 | 30% | 0% |
| Aug 6 | 87°F | 66°F | 104°F 1930 | 49°F 1957 | 30% | 0% |
| Aug 7 | 87°F | 66°F | 105°F 1918 | 50°F 1957 | 30% | 0% |
| Aug 8 | 86°F | 66°F | 106°F 1930 | 48°F 1989 | 30% | 0% |
| Aug 9 | 86°F | 66°F | 106°F 1930 | 50°F 1922 | 30% | 0% |
| Aug 10 | 86°F | 66°F | 99°F 1930 | 50°F 1922 | 30% | 0% |
| Aug 11 | 86°F | 66°F | 99°F 1941 | 49°F 1967 | 29% | 0% |
| Aug 12 | 86°F | 65°F | 100°F 1936 | 50°F 1967 | 29% | 0% |
| Aug 13 | 86°F | 65°F | 100°F 1918 | 45°F 1964 | 29% | 0% |
| Aug 14 | 86°F | 65°F | 97°F 1934 | 50°F 1964 | 29% | 0% |
| Aug 15 | 86°F | 65°F | 98°F 1918 | 47°F 1979 | 28% | 0% |
| Aug 16 | 86°F | 65°F | 99°F 1988 | 48°F 1929 | 28% | 0% |
| Aug 17 | 86°F | 65°F | 100°F 1988 | 53°F 1902 | 28% | 0% |
| Aug 18 | 86°F | 65°F | 100°F 1936 | 52°F 1915 | 28% | 0% |
| Aug 19 | 86°F | 65°F | 107°F 1936 | 49°F 1915 | 27% | 0% |
| Aug 20 | 86°F | 65°F | 104°F 1936 | 49°F 1932 | 27% | 0% |
| Aug 21 | 86°F | 65°F | 103°F 1936 | 49°F 1963 | 27% | 0% |
| Aug 22 | 86°F | 65°F | 105°F 1936 | 50°F 1923 | 27% | 0% |
| Aug 23 | 86°F | 65°F | 104°F 1936 | 46°F 1923 | 26% | 0% |
| Aug 24 | 86°F | 65°F | 103°F 1936 | 47°F 1923 | 26% | 0% |
| Aug 25 | 86°F | 64°F | 101°F 1936 | 47°F 1942 | 26% | 0% |
| Aug 26 | 86°F | 64°F | 100°F 1936 | 49°F 1958 | 26% | 0% |
| Aug 27 | 85°F | 64°F | 101°F 1936 | 48°F 1968 | 26% | 0% |
| Aug 28 | 85°F | 64°F | 104°F 1936 | 43°F 1986 | 26% | 0% |
| Aug 29 | 85°F | 64°F | 99°F 1932 | 42°F 1986 | 26% | 0% |
| Aug 30 | 85°F | 64°F | 99°F 1932 | 42°F 1986 | 26% | 0% |
| Aug 31 | 85°F | 63°F | 101°F 1932 | 42°F 1915 | 26% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- August 1
- sunrise 6:40 AM, sunset 8:49 PM
- August 31
- sunrise 7:07 AM, sunset 8:10 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00158714 (Williamstown), public domain. Records: NOAA GHCN-Daily, station USC00158714, 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.