August weather in Glenns Ferry, ID
The average temperature in Glenns Ferry in August is 76.4°F (55.7°F–97.2°F). Average precipitation: 0.28 inches.
August is a summer month in Glenns Ferry, and is warmer than the annual average of 54.6°F. Daily temperatures swing about 41.5°F between overnight low and afternoon high. Daylight averages about 13h 46m. For travel, August is hot.
Avg High
97.2°F
Avg Low
55.7°F
Precipitation
0.28 in
Daylight
13h 46m
August records in Glenns Ferry
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 111.0°F (2000) | 42.1°F (1932) | 0.42 in (1912) |
| August 2 | 109.9°F (2024) | 39.0°F (1937) | 0.37 in (1976) |
| August 3 | 109.0°F (2024) | 37.9°F (1937) | 0.50 in (2000) |
| August 4 | 107.1°F (1905) | 35.1°F (1992) | 0.10 in (2000) |
| August 5 | 108.0°F (1930) | 41.0°F (1928) | 0.31 in (1950) |
| August 6 | 108.0°F (1905) | 41.0°F (1910) | 1.04 in (2014) |
| August 7 | 111.9°F (1905) | 41.0°F (1996) | 0.35 in (2014) |
| August 8 | 111.9°F (1905) | 32.0°F (1995) | 0.11 in (1993) |
| August 9 | 109.9°F (2001) | 39.9°F (1967) | 0.22 in (1982) |
| August 10 | 111.0°F (1915) | 43.0°F (1911) | 0.63 in (1983) |
| August 11 | 111.0°F (2018) | 39.9°F (1996) | 1.10 in (1941) |
| August 12 | 109.9°F (1996) | 33.1°F (2000) | 0.20 in (1989) |
| August 13 | 107.1°F (1990) | 37.9°F (1995) | 0.65 in (1930) |
| August 14 | 106.0°F (1992) | 41.0°F (1925) | 0.14 in (1968) |
| August 15 | 111.0°F (1920) | 37.9°F (2000) | 0.25 in (1976) |
| August 16 | 109.0°F (1992) | 36.0°F (2000) | 0.42 in (1978) |
| August 17 | 107.1°F (1915) | 33.1°F (2000) | 1.10 in (1968) |
| August 18 | 108.0°F (2022) | 32.0°F (1916) | 0.30 in (1926) |
| August 19 | 107.1°F (1915) | 34.0°F (1918) | 0.48 in (1968) |
| August 20 | 107.1°F (1909) | 36.0°F (1918) | 0.42 in (2023) |
| August 21 | 105.1°F (1969) | 37.9°F (1916) | 0.15 in (1954) |
| August 22 | 106.0°F (2009) | 37.9°F (1959) | 0.23 in (1965) |
| August 23 | 105.1°F (2011) | 33.1°F (2000) | 0.29 in (2003) |
| August 24 | 105.1°F (1905) | 34.0°F (1989) | 0.12 in (1995) |
| August 25 | 106.0°F (1924) | 33.1°F (1992) | 0.14 in (1933) |
| August 26 | 105.1°F (1924) | 34.0°F (1992) | 0.39 in (1977) |
| August 27 | 109.0°F (1924) | 37.0°F (1976) | 0.30 in (2025) |
| August 28 | 105.1°F (1913) | 30.9°F (1927) | 0.12 in (1991) |
| August 29 | 106.0°F (1915) | 36.0°F (1965) | 0.15 in (1916) |
| August 30 | 106.0°F (1915) | 32.0°F (1910) | 0.10 in (1957) |
| August 31 | 105.1°F (1922) | 33.1°F (1965) | 0.32 in (1984) |