| 16:54 EST |  Partly Cloudy | 1°C / 34°F | -15°C / 5°F | 29% | 1026 mb (30.3 in) | W 22 kph (W 13.8 mph) | - | 10SM |
| | KBWI 112154Z 28012KT 10SM FEW180 01/M15 A3030 RMK AO2 PK WND 27026/2105 SLP260 T00061150 |
| 15:54 EST |  Partly Cloudy | 2°C / 36°F | -15°C / 5°F | 27% | 1025 mb (30.27 in) | W 20 kph (W 12.7 mph) | - | 10SM |
| | KBWI 112054Z 27011G20KT 10SM FEW180 02/M15 A3026 RMK AO2 PK WND 28030/2013 SLP250 T00171150 53019 |
| 14:54 EST |  Partly Cloudy | 2°C / 36°F | -16°C / 3°F | 25% | 1024 mb (30.24 in) | SSW 28 kph (SSW 17.3 mph) | - | 10SM |
| | KBWI 111954Z 26015G25KT 10SM FEW180 02/M16 A3024 RMK AO2 PK WND 27031/1857 SLP242 T00221156 |
| 13:54 EST |  Partly Cloudy | 2°C / 36°F | -16°C / 3°F | 25% | 1024 mb (30.24 in) | W 41 kph (W 25.3 mph) | - | 10SM |
| | KBWI 111854Z 27022G33KT 10SM FEW050 SCT180 02/M16 A3023 RMK AO2 PK WND 29034/1756 SLP237 T00221156 |
| 12:54 EST |  Partly Cloudy | 2°C / 36°F | -16°C / 3°F | 25% | 1023 mb (30.21 in) | WNW 41 kph (WNW 25.3 mph) | - | 10SM |
| | KBWI 111754Z 29022G30KT 10SM FEW180 02/M16 A3021 RMK AO2 PK WND 27030/1754 SLP231 T00171161 10022 21056 58020 |
| 11:54 EST |  Partly Cloudy | 1°C / 34°F | -15°C / 5°F | 29% | 1024 mb (30.24 in) | W 22 kph (W 13.8 mph) | - | 10SM |
| | KBWI 111654Z 27012G21KT 10SM FEW180 SCT250 01/M15 A3023 RMK AO2 PK WND 28026/1617 SLP237 T00061150 |
| 10:54 EST |  Partly Cloudy | -1°C / 30°F | -16°C / 3°F | 31% | 1024 mb (30.24 in) | W 30 kph (W 18.4 mph) | - | 10SM |
| | KBWI 111554Z 27016G23KT 10SM FEW180 SCT250 M01/M16 A3025 RMK AO2 PK WND 26027/1514 SLP246 T10111156 |
| 09:54 EST |  Partly Cloudy | -2°C / 28°F | -15°C / 5°F | 37% | 1025 mb (30.27 in) | SSW 26 kph (SSW 16.1 mph) | - | 10SM |
| | KBWI 111454Z 26014G22KT 10SM FEW180 SCT250 M02/M15 A3027 RMK AO2 SLP250 T10221150 51010 |
| 08:54 EST |  Partly Cloudy | -4°C / 25°F | -16°C / 3°F | 39% | 1025 mb (30.27 in) | W 20 kph (W 12.7 mph) | - | 10SM |
| | KBWI 111354Z 27011G15KT 10SM FEW180 M04/M16 A3026 RMK AO2 SLP248 T10391156 |
| 07:54 EST |  Partly Cloudy | -5°C / 23°F | -16°C / 3°F | 42% | 1024 mb (30.24 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KBWI 111254Z 25008KT 10SM FEW050 SCT180 M05/M16 A3025 RMK AO2 SLP246 T10501156 |
| 06:54 EST |  Partly Cloudy | -5°C / 23°F | -16°C / 3°F | 42% | 1024 mb (30.24 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KBWI 111154Z 26009KT 10SM FEW050 SCT180 M05/M16 A3024 RMK AO2 SLP240 T10501156 11028 21056 51022 |
| 05:54 EST |  Partly Cloudy | -5°C / 23°F | -16°C / 3°F | 42% | 1023 mb (30.21 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KBWI 111054Z 27008G16KT 10SM FEW050 M05/M16 A3022 RMK AO2 SLP235 T10501156 |
| 04:54 EST |  Clear | -5°C / 23°F | -16°C / 3°F | 42% | 1023 mb (30.21 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KBWI 110954Z 26009KT 10SM CLR M05/M16 A3020 RMK AO2 SLP227 T10501156 |
| 03:54 EST |  Clear | -4°C / 25°F | -16°C / 3°F | 39% | 1022 mb (30.18 in) | W 17 kph (W 10.4 mph) | - | 10SM |
| | KBWI 110854Z 28009KT 10SM CLR M04/M16 A3017 RMK AO2 SLP218 T10441161 53033 |
| 02:54 EST |  Partly Cloudy | -4°C / 25°F | -16°C / 3°F | 39% | 1021 mb (30.15 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KBWI 110754Z 28010G19KT 10SM FEW045 M04/M16 A3014 RMK AO2 PK WND 28029/0738 SLP207 T10391161 |
| 01:54 EST |  Partly Cloudy | -3°C / 27°F | -15°C / 5°F | 39% | 1019 mb (30.09 in) | W 32 kph (W 19.6 mph) | - | 10SM |
| | KBWI 110654Z 27017G21KT 10SM FEW045 M03/M15 A3010 RMK AO2 SLP195 T10331150 |
| 00:54 EST |  Partly Cloudy | -3°C / 27°F | -15°C / 5°F | 39% | 1018 mb (30.06 in) | W 22 kph (W 13.8 mph) | - | 10SM |
| | KBWI 110554Z 27012G20KT 10SM FEW050 M03/M15 A3007 RMK AO2 SLP185 T10281150 11006 21033 53025 |