| 05:56 EST |  Clear | 0°C / 32°F | -4°C / 25°F | 75% | 1011 mb (29.85 in) | WNW 9 kph (WNW 5.8 mph) | - | 10SM |
| | KGON 011056Z AUTO 29005KT 10SM CLR 00/M04 A2986 RMK AO2 SLP112 T00001039 |
| 04:56 EST |  Clear | 1°C / 34°F | -4°C / 25°F | 70% | 1010 mb (29.83 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KGON 010956Z AUTO 30005KT 10SM CLR 01/M04 A2982 RMK AO2 SLP099 T00061039 |
| 03:56 EST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1009 mb (29.8 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KGON 010856Z AUTO 31006KT 10SM CLR 01/M03 A2980 RMK AO2 SLP090 T00111028 51025 |
| 02:56 EST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1008 mb (29.77 in) | NW 22 kph (NW 13.8 mph) | - | 10SM |
| | KGON 010756Z AUTO 31012KT 10SM CLR 02/M02 A2977 RMK AO2 SLP080 T00221022 |
| 01:56 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1007 mb (29.74 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KGON 010656Z AUTO 32011KT 10SM CLR 03/M02 A2975 RMK AO2 SLP075 T00281017 |
| 00:56 EST |  Mostly Cloudy | 4°C / 39°F | -1°C / 30°F | 70% | 1006 mb (29.71 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KGON 010556Z AUTO 32010KT 10SM BKN075 04/M01 A2972 RMK AO2 SLP064 T00391011 10067 20039 53013 |