August weather in Long Lake, SD
The average temperature in Long Lake in August is 67.8°F (56.3°F–79.4°F). Average precipitation: 2.06 inches.
August is a summer month in Long Lake, and is warmer than the annual average of 41.9°F. Daily temperatures swing about 23.1°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 57m. For travel, August is one of the best months of the year to visit.
Avg High
79.4°F
Avg Low
56.3°F
Precipitation
2.06 in
Daylight
13h 57m
August records in Long Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 93.7°F (2011) | 47.8°F (2009) | 0.74 in (2010) |
| August 2 | 95.7°F (2022) | 46.6°F (2018) | 0.71 in (2017) |
| August 3 | 95.7°F (2024) | 51.4°F (2015) | 0.23 in (2014) |
| August 4 | 90.0°F (2022) | 43.3°F (2009) | 0.38 in (2023) |
| August 5 | 96.8°F (2022) | 47.8°F (2012) | 2.05 in (2025) |
| August 6 | 93.2°F (2012) | 52.0°F (2024) | 0.82 in (2019) |
| August 7 | 93.9°F (2010) | 49.3°F (2013) | 0.33 in (2009) |
| August 8 | 96.8°F (2018) | 44.1°F (2024) | 1.70 in (2009) |
| August 9 | 93.9°F (2007) | 40.8°F (2024) | 0.61 in (2008) |
| August 10 | 97.7°F (2018) | 46.2°F (2024) | 3.64 in (2016) |
| August 11 | 92.8°F (2018) | 49.1°F (2014) | 1.15 in (2012) |
| August 12 | 99.5°F (2018) | 52.2°F (2007) | 1.41 in (2020) |
| August 13 | 95.7°F (2018) | 46.0°F (2021) | 0.78 in (2023) |
| August 14 | 95.0°F (2021) | 50.2°F (2013) | 1.15 in (2009) |
| August 15 | 94.8°F (2015) | 50.9°F (2018) | 0.89 in (2025) |
| August 16 | 92.5°F (2021) | 46.6°F (2012) | 1.29 in (2025) |
| August 17 | 98.4°F (2021) | 46.4°F (2012) | 1.86 in (2025) |
| August 18 | 96.8°F (2021) | 47.5°F (2019) | 1.09 in (2015) |
| August 19 | 92.1°F (2021) | 49.6°F (2015) | 0.37 in (2022) |
| August 20 | 99.9°F (2013) | 48.0°F (2016) | 0.79 in (2014) |
| August 21 | 88.0°F (2010) | 48.4°F (2021) | 0.15 in (2007) |
| August 22 | 99.3°F (2010) | 43.2°F (2017) | 0.09 in (2021) |
| August 23 | 93.9°F (2020) | 42.8°F (2008) | 2.01 in (2014) |
| August 24 | 98.4°F (2013) | 39.9°F (2015) | 0.14 in (2007) |
| August 25 | 93.2°F (2013) | 41.9°F (2025) | 0.11 in (2017) |
| August 26 | 92.7°F (2013) | 43.9°F (2014) | 0.93 in (2022) |
| August 27 | 97.5°F (2010) | 47.8°F (2008) | 0.46 in (2021) |
| August 28 | 91.0°F (2016) | 43.3°F (2008) | 0.63 in (2021) |
| August 29 | 98.2°F (2012) | 45.9°F (2018) | 0.30 in (2025) |
| August 30 | 91.4°F (2008) | 42.4°F (2024) | 0.24 in (2011) |
| August 31 | 90.7°F (2008) | 45.1°F (2009) | 0.39 in (2014) |