August weather in Opal, WY
The average temperature in Opal in August is 60.9°F (40.7°F–81.1°F). Average precipitation: 0.86 inches.
August is a summer month in Opal, and is warmer than the annual average of 38.4°F. Daily temperatures swing about 40.4°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 13h 41m. For travel, August is a comfortable month to visit.
Avg High
81.1°F
Avg Low
40.7°F
Precipitation
0.86 in
Daylight
13h 41m
August records in Opal
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 93.9°F (1902) | 32.0°F (1950) | 1.94 in (2021) |
| August 2 | 95.0°F (1902) | 33.1°F (1995) | 0.60 in (1984) |
| August 3 | 93.9°F (2020) | 30.9°F (1938) | 0.90 in (1953) |
| August 4 | 98.1°F (1902) | 30.0°F (1975) | 0.21 in (2014) |
| August 5 | 91.9°F (2012) | 30.9°F (1996) | 1.25 in (2014) |
| August 6 | 91.0°F (2024) | 35.1°F (1956) | 0.52 in (2014) |
| August 7 | 91.0°F (1983) | 30.0°F (1996) | 1.22 in (2016) |
| August 8 | 93.9°F (2012) | 28.0°F (2025) | 0.62 in (1993) |
| August 9 | 91.0°F (2012) | 28.0°F (2025) | 0.46 in (1982) |
| August 10 | 93.0°F (1935) | 28.0°F (1985) | 0.45 in (1952) |
| August 11 | 93.9°F (2018) | 28.9°F (1985) | 0.31 in (1995) |
| August 12 | 93.9°F (1935) | 27.0°F (1985) | 0.69 in (2024) |
| August 13 | 93.0°F (1940) | 30.0°F (1985) | 0.56 in (2024) |
| August 14 | 91.9°F (2021) | 30.0°F (1938) | 0.52 in (1978) |
| August 15 | 93.0°F (1935) | 28.9°F (1938) | 0.75 in (1987) |
| August 16 | 91.0°F (2023) | 28.0°F (1968) | 0.58 in (1979) |
| August 17 | 93.9°F (2020) | 24.1°F (1952) | 0.85 in (2023) |
| August 18 | 95.0°F (2020) | 28.9°F (1954) | 1.04 in (1977) |
| August 19 | 91.9°F (2025) | 30.9°F (1954) | 0.95 in (1983) |
| August 20 | 96.1°F (2025) | 32.0°F (1964) | 0.25 in (1959) |
| August 21 | 89.1°F (1982) | 25.0°F (1966) | 0.48 in (1986) |
| August 22 | 93.0°F (2020) | 25.0°F (1966) | 1.21 in (1983) |
| August 23 | 91.0°F (1971) | 28.0°F (1960) | 0.27 in (1948) |
| August 24 | 96.1°F (1971) | 28.0°F (1960) | 0.42 in (1995) |
| August 25 | 89.1°F (1969) | 26.1°F (1992) | 0.69 in (1940) |
| August 26 | 89.1°F (1985) | 21.0°F (1992) | 0.62 in (2025) |
| August 27 | 93.9°F (1971) | 21.0°F (1992) | 0.46 in (1991) |
| August 28 | 90.0°F (2012) | 21.0°F (1992) | 0.50 in (1958) |
| August 29 | 89.1°F (2012) | 21.0°F (1992) | 0.34 in (1982) |
| August 30 | 88.0°F (2013) | 24.1°F (1964) | 0.30 in (1957) |
| August 31 | 88.0°F (2013) | 25.0°F (1902) | 0.80 in (2000) |