August weather in Island Park, ID
The average temperature in Island Park in August is °F (°F–°F). Average precipitation: 1.65 inches.
August is a summer month in Island Park, and is cooler than the annual average of 0°F. Expect about 6 days with precipitation. Daylight averages about 13h 52m.
Avg High
°F
Avg Low
°F
Precipitation
1.65 in
Daylight
13h 52m
August records in Island Park
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 87.4°F (2000) | 41.5°F (2006) | 0.60 in (1998) |
| August 2 | 87.4°F (2003) | 41.9°F (1991) | 0.70 in (2021) |
| August 3 | 83.5°F (2001) | 37.8°F (1996) | 1.10 in (2023) |
| August 4 | 84.9°F (1994) | 34.7°F (1996) | 0.70 in (1997) |
| August 5 | 85.3°F (1994) | 36.9°F (1996) | 0.90 in (2014) |
| August 6 | 85.8°F (2001) | 33.4°F (1996) | 0.50 in (2021) |
| August 7 | 87.4°F (1990) | 39.6°F (2009) | 0.70 in (1993) |
| August 8 | 85.5°F (1990) | 34.5°F (1995) | 1.00 in (2015) |
| August 9 | 85.5°F (2000) | 37.6°F (1995) | 0.30 in (2019) |
| August 10 | 85.5°F (2003) | 40.5°F (2016) | 0.60 in (2024) |
| August 11 | 86.9°F (2018) | 42.3°F (1993) | 0.60 in (1983) |
| August 12 | 83.3°F (2007) | 40.6°F (1997) | 0.30 in (1999) |
| August 13 | 86.9°F (2007) | 40.1°F (1997) | 0.80 in (1997) |
| August 14 | 91.0°F (2003) | 40.8°F (2005) | 0.30 in (1987) |
| August 15 | 88.9°F (2003) | 36.3°F (2009) | 0.30 in (1987) |
| August 16 | 84.0°F (2013) | 36.5°F (1993) | 0.40 in (1993) |
| August 17 | 82.9°F (2020) | 34.9°F (1993) | 2.20 in (2004) |
| August 18 | 82.6°F (2001) | 35.2°F (1995) | 1.70 in (2005) |
| August 19 | 82.0°F (2025) | 34.7°F (1996) | 1.50 in (1991) |
| August 20 | 83.8°F (2006) | 40.1°F (1989) | 1.10 in (2023) |
| August 21 | 86.7°F (2006) | 40.5°F (1989) | 1.70 in (1986) |
| August 22 | 84.4°F (2006) | 34.5°F (2008) | 0.60 in (2010) |
| August 23 | 82.6°F (2000) | 30.0°F (1992) | 1.40 in (2009) |
| August 24 | 84.2°F (2008) | 27.5°F (1992) | 0.40 in (1987) |
| August 25 | 85.5°F (1996) | 31.8°F (1992) | 1.30 in (2004) |
| August 26 | 83.3°F (2003) | 31.1°F (1992) | 0.30 in (2018) |
| August 27 | 82.2°F (1999) | 35.4°F (2004) | 2.30 in (2025) |
| August 28 | 81.3°F (2001) | 32.9°F (2018) | 1.20 in (1982) |
| August 29 | 81.1°F (1998) | 35.1°F (1993) | 0.30 in (2019) |
| August 30 | 82.8°F (2007) | 33.6°F (1993) | 1.70 in (2014) |
| August 31 | 82.0°F (1991) | 30.7°F (1999) | 0.70 in (1984) |