August weather in Challis, ID
The average temperature in Challis in August is 67.4°F (49.9°F–84.9°F). Average precipitation: 0.45 inches.
August is a summer month in Challis, and is warmer than the annual average of 44.4°F. Daily temperatures swing about 35°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 13h 52m. For travel, August is a comfortable month to visit.
Avg High
84.9°F
Avg Low
49.9°F
Precipitation
0.45 in
Daylight
13h 52m
August records in Challis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 99.0°F (2000) | 41.0°F (2001) | 0.36 in (2021) |
| August 2 | 99.0°F (2020) | 43.0°F (2013) | 0.43 in (2004) |
| August 3 | 95.0°F (2020) | 45.0°F (2025) | 0.31 in (2003) |
| August 4 | 93.9°F (2019) | 42.1°F (2016) | 0.20 in (2011) |
| August 5 | 96.1°F (2012) | 43.0°F (2025) | 0.28 in (2010) |
| August 6 | 98.1°F (2001) | 44.1°F (2007) | 0.21 in (2009) |
| August 7 | 98.1°F (2001) | 44.1°F (2015) | 0.30 in (2023) |
| August 8 | 96.1°F (2000) | 39.9°F (2002) | 0.24 in (2008) |
| August 9 | 98.1°F (2018) | 39.0°F (2002) | 0.25 in (2019) |
| August 10 | 102.0°F (2018) | 37.9°F (2016) | 0.13 in (2012) |
| August 11 | 99.0°F (2018) | 43.0°F (2007) | 0.04 in (2019) |
| August 12 | 96.1°F (2018) | 42.1°F (2019) | 0.50 in (2014) |
| August 13 | 97.0°F (2003) | 41.0°F (2006) | 0.13 in (1999) |
| August 14 | 98.1°F (2003) | 42.1°F (2010) | 0.21 in (2009) |
| August 15 | 97.0°F (2023) | 37.0°F (2009) | 0.44 in (2003) |
| August 16 | 97.0°F (2013) | 37.9°F (2009) | 0.48 in (2007) |
| August 17 | 98.1°F (2020) | 39.0°F (2009) | 0.27 in (2025) |
| August 18 | 98.1°F (2022) | 39.0°F (2006) | 0.08 in (2021) |
| August 19 | 97.0°F (2025) | 39.9°F (2000) | 0.05 in (2021) |
| August 20 | 93.9°F (2003) | 39.9°F (2007) | 1.04 in (2023) |
| August 21 | 98.1°F (2009) | 41.0°F (2000) | 0.34 in (2023) |
| August 22 | 96.1°F (2009) | 36.0°F (2002) | 0.43 in (2014) |
| August 23 | 93.0°F (2020) | 36.0°F (2016) | 0.24 in (2014) |
| August 24 | 95.0°F (2011) | 39.0°F (2004) | 0.02 in (2013) |
| August 25 | 93.0°F (2008) | 36.0°F (2012) | 0.19 in (2004) |
| August 26 | 97.0°F (2011) | 37.9°F (2005) | 0.52 in (2025) |
| August 27 | 95.0°F (2001) | 36.0°F (2004) | 0.37 in (2025) |
| August 28 | 93.9°F (2012) | 37.9°F (2018) | 0.22 in (1999) |
| August 29 | 93.9°F (2017) | 37.9°F (2024) | 0.01 in (2002) |
| August 30 | 93.9°F (2022) | 37.9°F (2012) | 0.28 in (2009) |
| August 31 | 93.9°F (2022) | 33.1°F (2006) | 0.09 in (2020) |