| Point Forecast: 5NM ENE Chicago IL 41.88N 87.59W |
Last Update: 12:16 pm CDT Sep 13, 2026 |
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| Date | 09/13 | 09/14 | ||||||||||||||||||||||
| Hour (CDT) | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |
| Temperature (°C) | 21 | 21 | 21 | 20 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 19 | 19 |
| Surface Wind (km/h) | 26 | 27 | 27 | 29 | 26 | 23 | 18 | 18 | 18 | 18 | 18 | 16 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 16 | 18 | 18 |
| Wind Dir | N | N | N | N | N | N | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | N | N | N | ENE | SE | SE | SE |
| Gust | 37 | 37 | 39 | 34 | 29 | |||||||||||||||||||
| Precipitation Potential (%) | 1 | 6 | 24 | 47 | 59 | 47 | 10 | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Rain | -- | -- | SChc | Chc | Lkly | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Wave Height (m) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wave Period (sec) | 4 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Wave Direction (°) | 10 | 10 | 20 | 20 | 20 | 30 | 30 | 30 | 30 | 20 | 30 | 150 | 150 | 150 | 140 | 140 | 140 | 10 | 10 | 10 | 20 | 70 | 90 | 100 |
| Date | 09/15 | |||||||||||||||||||||||
| Hour (CDT) | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 |
| Temperature (°C) | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 24 |
| Surface Wind (km/h) | 18 | 21 | 21 | 23 | 24 | 26 | 27 | 32 | 34 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 35 | 34 | 32 | 29 | 27 | 26 | 24 | 24 |
| Wind Dir | SE | SE | SE | SE | SE | SE | SSE | SSE | SSE | SSE | SSE | SSE | S | S | S | S | S | S | SSW | SSW | SSW | SSW | SSW | SW |
| Gust | 34 | 39 | 45 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 45 | 34 | 34 | |||||||||||
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 28 | 28 | 28 | 28 | 28 | 28 | 35 | 35 | 35 | 35 | 35 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- |
| Wave Height (m) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
| Wave Period (sec) | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 |
| Wave Direction (°) | 100 | 110 | 110 | 110 | 120 | 120 | 130 | 130 | 130 | 140 | 130 | 130 | 140 | 140 | 140 | 150 | 150 | 160 | 160 | 170 | 180 | 180 | 190 | 200 |


