| Point Forecast: 5NM ENE Chicago IL 41.88N 87.59W |
Last Update: 8:41 pm CST Dec 15, 2025 |
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| Date | 12/15 | 12/16 | ||||||||||||||||||||||
| Hour (CST) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 20 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 27 | 29 | 32 | 34 | 36 | 36 | 37 | 37 | 36 | 36 | 36 | 36 |
| Surface Wind (mph) | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 12 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 18 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SSW | SSW | SSW | S | S | SSW | SSW | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | 18 | 20 | 21 | 22 | 23 | 23 | 24 | 23 | 23 | |||||||||||||||
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Wave Height (ft) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 |
| Wave Period (sec) | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Wave Direction (°) | 220 | 220 | 220 | 220 | 220 | 200 | 190 | 190 | 190 | 180 | 180 | 180 | 180 | 190 | 190 | 200 | 200 | 200 | 200 | 210 | 210 | 210 | 210 | 210 |
| Date | 12/17 | |||||||||||||||||||||||
| Hour (CST) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 36 | 36 | 36 | 36 | 36 | 35 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 36 | 36 | 37 | 37 | 37 | 36 | 36 | 35 | 35 | 35 | 35 |
| Surface Wind (mph) | 17 | 17 | 16 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 10 | 9 | 8 | 7 | 6 | 5 | 6 | 6 | 7 | 8 | 10 | 11 | 13 | 14 |
| Wind Dir | SW | SW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | WNW | WNW | WNW | W | W | WSW | SSW | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Precipitation Potential (%) | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Wave Height (ft) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Wave Period (sec) | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 3 | 3 |
| Wave Direction (°) | 210 | 210 | 230 | 230 | 230 | 240 | 250 | 250 | 270 | 270 | 280 | 280 | 290 | 290 | 300 | 310 | 120 | 110 | 200 | 190 | 170 | 160 | 160 | 160 |


