| Point Forecast: 2 Miles ESE Serena IL 41.48N 88.73W |
Last Update: 1:11 pm CDT Jul 18, 2026 |
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| Date | 07/18 | 07/19 | ||||||||||||||||||||||
| Hour (CDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°F) | 86 | 88 | 89 | 88 | 87 | 86 | 84 | 81 | 77 | 74 | 72 | 71 | 70 | 69 | 68 | 66 | 66 | 66 | 67 | 70 | 73 | 76 | 78 | 80 |
| Dewpoint (°F) | 74 | 74 | 74 | 74 | 74 | 73 | 72 | 72 | 71 | 69 | 67 | 65 | 65 | 64 | 64 | 63 | 63 | 63 | 64 | 64 | 64 | 65 | 65 | 65 |
| Heat Index (°F) | 95 | 97 | 98 | 97 | 95 | 93 | 90 | 85 | 77 | 76 | 78 | 81 | ||||||||||||
| Surface Wind (mph) | 14 | 13 | 11 | 10 | 9 | 9 | 7 | 7 | 6 | 7 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 7 | 7 | 7 |
| Wind Dir | WNW | WNW | WNW | WNW | NW | NNW | NNW | N | NE | ENE | ENE | ENE | ENE | NE | NE | NE | NE | NE | ENE | ENE | ENE | ENE | ENE | ENE |
| Gust | 21 | 20 | 18 | 16 | 15 | 14 | 13 | |||||||||||||||||
| Sky Cover (%) | 61 | 69 | 73 | 59 | 55 | 43 | 27 | 14 | 12 | 13 | 20 | 27 | 34 | 29 | 33 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 33 |
| Precipitation Potential (%) | 41 | 69 | 69 | 69 | 48 | 27 | 19 | 10 | 6 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 68 | 63 | 61 | 64 | 67 | 67 | 67 | 73 | 81 | 82 | 83 | 83 | 84 | 85 | 87 | 88 | 91 | 92 | 89 | 82 | 75 | 70 | 65 | 61 |
| Rain | Chc | Lkly | Lkly | Lkly | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Lkly | Lkly | Lkly | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/20 | |||||||||||||||||||||||
| Hour (CDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°F) | 81 | 82 | 82 | 82 | 82 | 82 | 79 | 76 | 73 | 71 | 69 | 67 | 66 | 65 | 64 | 64 | 63 | 63 | 66 | 70 | 75 | 78 | 81 | 83 |
| Dewpoint (°F) | 65 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 62 | 61 | 60 | 60 | 59 | 60 | 60 | 60 | 60 | 60 | 62 | 64 | 65 | 66 | 67 | 67 |
| Heat Index (°F) | 83 | 83 | 84 | 84 | 84 | 83 | 81 | 76 | 75 | 79 | 84 | 86 | ||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 6 | 7 | 8 |
| Wind Dir | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | ESE | ESE | ESE | ESE | SE | SE | SSE | SE | SSE | SSE | S | S | S | S | S |
| Gust | 13 | |||||||||||||||||||||||
| Sky Cover (%) | 30 | 30 | 25 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 30 | 20 | 20 | 20 | 20 | 20 | 41 | 49 | 56 | 63 | 44 | 40 | 48 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 58 | 56 | 55 | 54 | 55 | 56 | 60 | 65 | 69 | 72 | 75 | 77 | 79 | 83 | 85 | 87 | 89 | 91 | 86 | 79 | 73 | 67 | 62 | 59 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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