Des Moines, Sunday, 9 August, 07:55
Clear. Feels like 73°. High 98°, low 71°.
In September, Des Moines, IA averages a high of 75.3° and a low of 58.3°. About 3.3 inches of precipitation fall over the month (9 wet days). The record high is 96.8° (2013) and the record low 34° (1983). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 80.6° | 63.7° | 27% | 95° (1984) | 46.9° (1967) |
| 2 | 80.8° | 64° | 30% | 95.2° (2000) | 52.2° (1974) |
| 3 | 80.1° | 63.7° | 23% | 95° (2023) | 43.3° (1974) |
| 4 | 79.7° | 62.8° | 28% | 95.9° (2012) | 44.8° (1974) |
| 5 | 79.9° | 62.2° | 23% | 93° (2023) | 45° (1962) |
| 6 | 79.7° | 62.6° | 23% | 93.4° (2020) | 45.9° (1988) |
| 7 | 79.2° | 62.2° | 27% | 93.7° (2013) | 45.5° (1986) |
| 8 | 77.9° | 60.8° | 33% | 93.7° (1983) | 42.4° (1986) |
| 9 | 77.7° | 60.4° | 27% | 96.8° (2013) | 44.6° (2008) |
| 10 | 77.5° | 60.1° | 27% | 94.1° (2013) | 46.9° (1969) |
| 11 | 78.3° | 60.3° | 25% | 93.6° (2000) | 46° (1992) |
| 12 | 77.2° | 60.1° | 25% | 89.1° (2025) | 43.7° (2007) |
| 13 | 75.7° | 59.5° | 38% | 93° (2025) | 38.3° (2014) |
| 14 | 74.5° | 58.3° | 28% | 91.4° (2017) | 43.7° (1996) |
| 15 | 74.1° | 57.6° | 30% | 92.3° (2017) | 40.1° (2007) |
| 16 | 73.9° | 57.6° | 28% | 88° (2019) | 42.6° (1984) |
| 17 | 74.8° | 58.1° | 28% | 88.5° (2019) | 43.5° (1980) |
| 18 | 75.2° | 58.5° | 40% | 88.2° (2013) | 41.4° (1973) |
| 19 | 75.2° | 58.6° | 38% | 88.5° (2021) | 38.1° (1991) |
| 20 | 74.5° | 57.4° | 32% | 91.4° (2022) | 38.1° (1991) |
| 21 | 72.5° | 56.3° | 33% | 88.7° (2017) | 41.2° (1983) |
| 22 | 70.9° | 54.3° | 33% | 88.9° (2017) | 34.5° (1995) |
| 23 | 69.8° | 53.1° | 32% | 88° (2017) | 34° (1983) |
| 24 | 71.1° | 54.5° | 33% | 88.3° (2017) | 37.9° (1965) |
| 25 | 71.8° | 54.5° | 38% | 84.4° (1998) | 40.5° (2001) |
| 26 | 71.8° | 53.6° | 27% | 88° (2020) | 36.3° (1984) |
| 27 | 71.4° | 54° | 13% | 86.9° (2021) | 41° (1993) |
| 28 | 70.2° | 53.1° | 28% | 87.1° (1971) | 37.2° (1961) |
| 29 | 71.2° | 52.7° | 27% | 88.5° (2023) | 34° (1984) |
| 30 | 72.3° | 53.8° | 18% | 90.5° (2023) | 35.6° (1972) |