| Point Forecast: Saint Charles IL 41.9N 88.32W |
Last Update: 4:12 pm CDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (CDT) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°C) | 27 | 27 | 26 | 24 | 23 | 22 | 21 | 21 | 19 | 19 | 18 | 18 | 18 | 17 | 19 | 22 | 25 | 27 | 28 | 29 | 30 | 30 | 30 | 31 |
| Dewpoint (°C) | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 18 | 18 |
| Heat Index (°C) | 27 | 27 | 26 | 24 | 25 | 28 | 29 | 30 | 31 | 31 | 31 | 31 | ||||||||||||
| Surface Wind (mph) | 8 | 7 | 6 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 6 | 6 |
| Wind Dir | W | WNW | WNW | WNW | WNW | WNW | W | SW | SW | WSW | W | W | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 64 | 55 | 46 | 36 | 35 | 35 | 30 | 25 | 20 | 20 | 16 | 13 | 9 | 8 | 8 | 7 | 4 | 2 | 2 | 3 | 4 | 4 | 4 | 4 |
| Precipitation Potential (%) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 46 | 47 | 53 | 59 | 64 | 68 | 71 | 75 | 77 | 80 | 84 | 87 | 90 | 94 | 89 | 76 | 66 | 58 | 54 | 51 | 48 | 48 | 47 | 47 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (CDT) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°C) | 30 | 29 | 28 | 26 | 24 | 23 | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 19 | 20 | 23 | 26 | 28 | 29 | 30 | 31 | 32 | 32 | 32 |
| Dewpoint (°C) | 18 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Heat Index (°C) | 31 | 31 | 29 | 27 | 24 | 26 | 29 | 32 | 33 | 33 | 34 | 35 | 35 | |||||||||||
| Surface Wind (mph) | 6 | 6 | 5 | 3 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 5 | 5 | 6 | 7 | 7 | 7 | 7 | 7 |
| Wind Dir | W | W | W | SW | SSW | SSE | SE | SE | SE | SSE | SSE | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 4 | 5 | 5 | 5 | 5 | 6 | 5 | 6 | 7 | 8 | 10 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 18 | 22 | 26 | 31 | 37 | 42 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 7 | 7 | 7 | 7 | 7 | 7 | 17 | 17 | 17 | 17 |
| Relative Humidity (%) | 48 | 51 | 55 | 63 | 70 | 77 | 81 | 85 | 86 | 88 | 89 | 92 | 92 | 93 | 90 | 78 | 69 | 64 | 60 | 57 | 55 | 54 | 53 | 52 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc |
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