| Point Forecast: Marshalltown IA 42.06N 92.92W |
Last Update: 6:42 am CDT Jun 20, 2025 |
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| Date | 06/20 | 06/21 | ||||||||||||||||||||||
| Hour (CDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°C) | 22 | 22 | 24 | 26 | 28 | 30 | 32 | 33 | 34 | 34 | 33 | 33 | 32 | 30 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 25 | 26 |
| Dewpoint (°C) | 18 | 18 | 19 | 19 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 21 | 21 | 21 | 21 |
| Heat Index (°C) | 24 | 26 | 29 | 33 | 36 | 37 | 38 | 39 | 37 | 37 | 36 | 33 | 31 | 31 | 30 | 29 | 28 | 26 | 26 | 26 | 25 | 26 | ||
| Surface Wind (mph) | 10 | 11 | 14 | 14 | 15 | 16 | 17 | 17 | 18 | 18 | 18 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Wind Dir | SSE | S | S | S | S | S | S | S | S | S | S | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW |
| Gust | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 30 | 31 | 31 | 30 | |||||||||||||
| Sky Cover (%) | 100 | 88 | 76 | 58 | 41 | 23 | 17 | 15 | 11 | 9 | 4 | 3 | 5 | 3 | 6 | 3 | 5 | 6 | 5 | 7 | 7 | 14 | 15 | 8 |
| Precipitation Potential (%) | 36 | 31 | 26 | 19 | 11 | 7 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 1 |
| Relative Humidity (%) | 79 | 81 | 71 | 67 | 65 | 59 | 52 | 51 | 51 | 49 | 51 | 54 | 54 | 61 | 63 | 65 | 67 | 69 | 72 | 77 | 74 | 74 | 76 | 77 |
| Rain | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/22 | |||||||||||||||||||||||
| Hour (CDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°C) | 27 | 28 | 29 | 31 | 33 | 34 | 34 | 35 | 36 | 35 | 34 | 34 | 32 | 31 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 24 |
| Dewpoint (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 21 |
| Heat Index (°C) | 29 | 30 | 32 | 34 | 37 | 39 | 39 | 40 | 41 | 39 | 38 | 37 | 35 | 33 | 32 | 31 | 30 | 29 | 28 | 26 | 26 | 25 | 25 | 24 |
| Surface Wind (mph) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 20 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Wind Dir | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | S | S |
| Gust | 31 | 31 | 31 | 31 | 32 | 33 | 34 | 36 | 36 | 34 | 32 | 30 | 29 | 29 | ||||||||||
| Sky Cover (%) | 10 | 5 | 6 | 8 | 7 | 6 | 5 | 3 | 2 | 2 | 2 | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 2 | 3 | 3 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 74 | 70 | 63 | 57 | 54 | 50 | 49 | 48 | 47 | 46 | 46 | 46 | 50 | 54 | 59 | 62 | 64 | 67 | 69 | 69 | 71 | 73 | 75 | 79 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
