| 14:51 CST |  Partly Cloudy | 0°C / 32°F | -11°C / 12°F | 44% | 1020 mb (30.12 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KMDW 052051Z 22006KT 10SM FEW040 SCT200 00/M11 A3011 RMK AO2 SLP209 T00001106 55008 |
| 13:51 CST |  Partly Cloudy | 0°C / 32°F | -11°C / 12°F | 44% | 1019 mb (30.09 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KMDW 051951Z 23007KT 10SM FEW042 SCT200 00/M11 A3010 RMK AO2 SLP205 T00001106 |
| 12:51 CST |  Partly Cloudy | -1°C / 30°F | -11°C / 12°F | 47% | 1020 mb (30.12 in) | SSW 19 kph (SSW 11.5 mph) | - | 10SM |
| | KMDW 051851Z 25010KT 10SM SCT042 M01/M11 A3011 RMK AO2 SLP211 T10111111 |
| 11:51 CST |  Mostly Cloudy | -1°C / 30°F | -12°C / 10°F | 43% | 1020 mb (30.12 in) | SSW 20 kph (SSW 12.7 mph) | - | 10SM |
| | KMDW 051751Z 24011KT 10SM BKN042 M01/M12 A3013 RMK AO2 SLP218 T10111117 11011 21044 58012 |
| 10:51 CST |  Mostly Cloudy | -2°C / 28°F | -11°C / 12°F | 51% | 1021 mb (30.15 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KMDW 051651Z 22010G16KT 10SM BKN040 M02/M11 A3016 RMK AO2 SLP227 T10171111 |
| 09:51 CST |  Mostly Cloudy | -3°C / 27°F | -11°C / 12°F | 54% | 1022 mb (30.18 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KMDW 051551Z 21008KT 10SM BKN044 M03/M11 A3017 RMK AO2 SLP229 T10281111 |
| 08:51 CST |  Mostly Cloudy | -4°C / 25°F | -11°C / 12°F | 59% | 1022 mb (30.18 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KMDW 051451Z 23008KT 10SM BKN044 M04/M11 A3017 RMK AO2 SLP232 T10391106 53007 |
| 07:51 CST |  Mostly Cloudy | -4°C / 25°F | -11°C / 12°F | 59% | 1021 mb (30.15 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KMDW 051351Z 22006KT 10SM BKN042 M04/M11 A3016 RMK AO2 SLP227 T10441106 |
| 06:51 CST |  Overcast | -4°C / 25°F | -11°C / 12°F | 59% | 1021 mb (30.15 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KMDW 051251Z 21007KT 10SM OVC042 M04/M11 A3015 RMK AO2 SLP227 T10391106 |
| 05:51 CST |  Overcast | -4°C / 25°F | -12°C / 10°F | 54% | 1021 mb (30.15 in) | SW 9 kph (SW 5.8 mph) | 0.00 mm (0.00 in) | 10SM |
| | KMDW 051151Z 23005KT 10SM OVC040 M04/M12 A3015 RMK AO2 SNE24 SLP223 P0000 60000 T10391117 11039 21044 55006 |
| 04:51 CST |  Overcast Light Snow | -4°C / 25°F | -12°C / 10°F | 54% | 1021 mb (30.15 in) | SW 9 kph (SW 5.8 mph) | 0.00 mm (0.00 in) | 9SM |
| | KMDW 051051Z 22005KT 9SM -SN OVC040 M04/M12 A3014 RMK AO2 SLP223 P0000 T10391117 |
| 03:51 CST |  Overcast Light Snow | -4°C / 25°F | -12°C / 10°F | 54% | 1021 mb (30.15 in) | SW 11 kph (SW 6.9 mph) | 0.00 mm (0.00 in) | 9SM |
| | KMDW 050951Z 23006KT 9SM -SN OVC040 M04/M12 A3015 RMK AO2 SLP226 P0000 T10391117 |
| 02:51 CST |  Overcast Light Snow | -4°C / 25°F | -12°C / 10°F | 54% | 1022 mb (30.18 in) | SSE 11 kph (SSE 6.9 mph) | 0.00 mm (0.00 in) | 9SM |
| | KMDW 050851Z 20006KT 9SM -SN OVC040 M04/M12 A3017 RMK AO2 SLP230 P0000 60000 T10391117 58000 |
| 01:51 CST |  Overcast Light Snow | -4°C / 25°F | -12°C / 10°F | 54% | 1022 mb (30.18 in) | SW 11 kph (SW 6.9 mph) | 0.00 mm (0.00 in) | 9SM |
| | KMDW 050751Z 21006KT 9SM -SN OVC040 M04/M12 A3017 RMK AO2 SLP231 P0000 T10391117 |
| 00:51 CST |  Overcast Light Snow | -4°C / 25°F | -11°C / 12°F | 59% | 1021 mb (30.15 in) | SW 11 kph (SW 6.9 mph) | 0.00 mm (0.00 in) | 9SM |
| | KMDW 050651Z 23006KT 9SM -SN OVC036 M04/M11 A3016 RMK AO2 SLP229 P0000 T10391111 |