| 15:51 CST |  Partly Cloudy | -5°C / 23°F | -14°C / 7°F | 50% | 1026 mb (30.3 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KMDW 112151Z 24007KT 10SM SCT150 M05/M14 A3029 RMK AO2 SLP277 T10501139 |
| 14:51 CST |  Partly Cloudy | -4°C / 25°F | -13°C / 9°F | 50% | 1025 mb (30.27 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KMDW 112051Z 21006KT 10SM FEW110 SCT250 M04/M13 A3028 RMK AO2 SLP271 T10441133 53003 |
| 13:51 CST |  Partly Cloudy | -5°C / 23°F | -13°C / 9°F | 54% | 1025 mb (30.27 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KMDW 111951Z 23006KT 10SM FEW110 SCT250 M05/M13 A3027 RMK AO2 SLP269 T10501128 |
| 12:51 CST |  Partly Cloudy | -6°C / 21°F | -14°C / 7°F | 54% | 1025 mb (30.27 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KMDW 111851Z 24012KT 10SM FEW250 M06/M14 A3027 RMK AO2 SLP268 T10561139 |
| 11:51 CST |  Partly Cloudy | -6°C / 21°F | -14°C / 7°F | 54% | 1025 mb (30.27 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KMDW 111751Z 26008KT 10SM FEW250 M06/M14 A3027 RMK AO2 SLP270 T10611144 11061 21122 58013 |
| 10:51 CST |  Clear | -7°C / 19°F | -16°C / 3°F | 49% | 1026 mb (30.3 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KMDW 111651Z 26010KT 10SM CLR M07/M16 A3031 RMK AO2 SLP283 T10721161 |
| 09:51 CST |  Clear | -9°C / 16°F | -16°C / 3°F | 57% | 1027 mb (30.33 in) | SSW 24 kph (SSW 15 mph) | - | 10SM |
| | KMDW 111551Z 25013KT 10SM CLR M09/M16 A3032 RMK AO2 SLP287 T10891161 |
| 08:51 CST |  Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1026 mb (30.3 in) | SSW 22 kph (SSW 13.8 mph) | - | 10SM |
| | KMDW 111451Z 25012KT 10SM CLR M11/M16 A3031 RMK AO2 SLP284 T11061156 53031 |
| 07:51 CST |  Clear | -12°C / 10°F | -16°C / 3°F | 72% | 1025 mb (30.27 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KMDW 111351Z 23010KT 10SM CLR M12/M16 A3027 RMK AO2 SLP274 T11171161 |
| 06:51 CST |  Clear | -12°C / 10°F | -17°C / 1°F | 67% | 1024 mb (30.24 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KMDW 111251Z 24008KT 10SM CLR M12/M17 A3024 RMK AO2 SLP263 T11221167 $ |
| 05:51 CST |  Clear | -12°C / 10°F | -17°C / 1°F | 67% | 1023 mb (30.21 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KMDW 111151Z 26006KT 10SM CLR M12/M17 A3021 RMK AO2 SLP255 4/001 T11221167 11106 21122 53014 $ |
| 04:51 CST |  Partly Cloudy | -12°C / 10°F | -17°C / 1°F | 67% | 1022 mb (30.18 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KMDW 111051Z 25009KT 10SM FEW060 M12/M17 A3019 RMK AO2 SLP248 T11221167 $ |
| 03:51 CST |  Clear | -12°C / 10°F | -17°C / 1°F | 67% | 1022 mb (30.18 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KMDW 110951Z 25010KT 10SM CLR M12/M17 A3018 RMK AO2 SLP244 T11171167 $ |
| 02:51 CST |  Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1022 mb (30.18 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KMDW 110851Z 26010KT 10SM CLR M11/M16 A3017 RMK AO2 SLP240 T11111161 51019 $ |
| 01:51 CST |  Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1021 mb (30.15 in) | SSW 26 kph (SSW 16.1 mph) | - | 10SM |
| | KMDW 110751Z 26014G20KT 10SM CLR M11/M16 A3016 RMK AO2 SLP235 T11061161 $ |
| 00:51 CST |  Clear | -11°C / 12°F | -16°C / 3°F | 67% | 1021 mb (30.15 in) | W 20 kph (W 12.7 mph) | - | 10SM |
| | KMDW 110651Z 27011G18KT 10SM CLR M11/M16 A3014 RMK AO2 SLP227 T11061161 $ |