| Point Forecast: Saint Charles IL 41.9N 88.32W |
Last Update: 2:46 pm CDT Sep 7, 2026 |
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| Date | 09/07 | 09/08 | ||||||||||||||||||||||
| 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 (°F) | 80 | 78 | 75 | 72 | 70 | 68 | 67 | 66 | 65 | 64 | 63 | 62 | 61 | 61 | 61 | 65 | 69 | 73 | 76 | 79 | 81 | 82 | 83 | 84 |
| Dewpoint (°F) | 53 | 55 | 57 | 58 | 59 | 59 | 60 | 60 | 60 | 59 | 58 | 57 | 57 | 57 | 58 | 59 | 61 | 62 | 63 | 62 | 61 | 61 | 60 | 60 |
| Heat Index (°F) | 80 | 78 | 75 | 76 | 79 | 82 | 83 | 84 | 84 | |||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 9 | 10 |
| Wind Dir | E | E | ESE | ESE | ESE | ESE | ESE | ESE | SE | SE | SE | SE | SE | SE | SSE | SSE | S | S | SSW | SSW | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 22 | 29 | 42 | 42 | 35 | 45 | 37 | 38 | 37 | 44 | 44 | 38 | 44 | 45 | 51 | 52 | 53 | 54 | 51 | 48 | 45 | 45 | 45 | 45 |
| Precipitation Potential (%) | 0 | 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 (%) | 40 | 45 | 54 | 61 | 68 | 72 | 76 | 80 | 82 | 83 | 84 | 84 | 85 | 88 | 90 | 82 | 77 | 70 | 64 | 56 | 51 | 48 | 46 | 44 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/09 | |||||||||||||||||||||||
| 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 (°F) | 84 | 82 | 80 | 78 | 76 | 75 | 74 | 74 | 74 | 73 | 72 | 72 | 71 | 70 | 70 | 70 | 72 | 74 | 76 | 78 | 80 | 81 | 82 | 82 |
| Dewpoint (°F) | 61 | 62 | 61 | 62 | 62 | 62 | 62 | 61 | 61 | 62 | 62 | 62 | 63 | 65 | 66 | 67 | 68 | 70 | 70 | 71 | 71 | 71 | 70 | 70 |
| Heat Index (°F) | 84 | 83 | 81 | 78 | 76 | 75 | 76 | 78 | 83 | 84 | 85 | 85 | ||||||||||||
| Surface Wind (mph) | 10 | 9 | 8 | 8 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 11 | 11 | 13 | 13 |
| Wind Dir | S | S | S | S | S | S | S | S | SSW | SSW | SSW | SW | SW | WSW | WSW | WSW | SW | SW | SW | WSW | WSW | W | W | W |
| Gust | 15 | 16 | 14 | 15 | 16 | 18 | 20 | 21 | 20 | |||||||||||||||
| Sky Cover (%) | 38 | 32 | 25 | 39 | 54 | 68 | 74 | 80 | 86 | 85 | 83 | 82 | 84 | 85 | 87 | 89 | 90 | 92 | 90 | 88 | 87 | 84 | 81 | 78 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 9 | 31 | 31 | 31 | 57 | 57 | 57 | 58 | 58 | 58 | 60 | 60 | 60 | 37 | 37 | 37 | 20 |
| Relative Humidity (%) | 46 | 49 | 52 | 58 | 62 | 63 | 65 | 65 | 66 | 68 | 71 | 73 | 75 | 82 | 89 | 89 | 88 | 87 | 83 | 79 | 75 | 71 | 68 | 67 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
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