| Point Forecast: Des Moines International Airport IA 41.54N 93.66W |
Last Update: 3:18 am CDT May 21, 2025 |
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| Date | 05/21 | 05/22 | ||||||||||||||||||||||
| Hour (CDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 48 | 48 | 49 | 49 | 49 | 48 | 51 | 51 | 53 | 54 | 55 | 57 | 56 | 57 | 58 | 56 | 55 | 52 | 51 | 50 | 49 | 48 | 47 | 46 |
| Dewpoint (°F) | 46 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 43 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 42 | 41 | 41 | 41 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 14 | 15 | 15 | 15 | 16 | 16 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 16 | 14 | 13 | 11 | 10 | 10 | 9 | 10 | 10 | 10 |
| Wind Dir | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 24 | 22 | 20 | |||||||
| Sky Cover (%) | 89 | 84 | 96 | 95 | 92 | 84 | 83 | 74 | 69 | 72 | 57 | 59 | 55 | 58 | 63 | 46 | 37 | 41 | 36 | 38 | 31 | 25 | 21 | 23 |
| Precipitation Potential (%) | 6 | 2 | 1 | 4 | 4 | 7 | 5 | 10 | 8 | 10 | 4 | 10 | 7 | 5 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Relative Humidity (%) | 93 | 89 | 86 | 83 | 83 | 86 | 77 | 77 | 71 | 66 | 64 | 59 | 62 | 59 | 57 | 59 | 61 | 69 | 68 | 71 | 77 | 77 | 79 | 83 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/23 | |||||||||||||||||||||||
| Hour (CDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 45 | 45 | 44 | 46 | 47 | 48 | 51 | 52 | 54 | 57 | 58 | 60 | 62 | 63 | 63 | 64 | 60 | 57 | 55 | 53 | 51 | 50 | 48 | 47 |
| Dewpoint (°F) | 41 | 41 | 40 | 41 | 42 | 42 | 42 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 43 | 40 | 40 | 40 | 40 | 40 | 39 | 39 | 39 | 39 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 10 | 10 | 10 | 11 | 11 | 11 | 13 | 13 | 13 | 14 | 13 | 11 | 11 | 11 | 10 | 10 | 8 | 7 | 6 | 5 | 5 | 5 | 5 | 3 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | N | N | N | NNW | NNW | NW | NW | WNW | WNW | WNW |
| Gust | 18 | 18 | 18 | 18 | 18 | 20 | 20 | 20 | 20 | |||||||||||||||
| Sky Cover (%) | 27 | 32 | 29 | 34 | 36 | 43 | 55 | 64 | 67 | 65 | 61 | 55 | 49 | 43 | 37 | 31 | 19 | 14 | 11 | 9 | 7 | 7 | 9 | 11 |
| Precipitation Potential (%) | 7 | 7 | 7 | 2 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 86 | 86 | 86 | 83 | 83 | 80 | 71 | 71 | 66 | 62 | 59 | 55 | 52 | 50 | 48 | 41 | 47 | 53 | 57 | 61 | 63 | 66 | 71 | 74 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
