| 08:54 EST |  Clear | 6°C / 43°F | -2°C / 28°F | 57% | 1017 mb (30.03 in) | WNW 20 kph (WNW 12.7 mph) | - | 10SM |
| | KORH 041354Z 29011G18KT 10SM CLR 06/M02 A3004 RMK AO2 SLP177 T00561017 |
| 07:54 EST |  Clear | 5°C / 41°F | -1°C / 30°F | 66% | 1016 mb (30 in) | W 13 kph (W 8.1 mph) | - | 10SM |
| | KORH 041254Z 28007KT 10SM CLR 05/M01 A2999 RMK AO2 SLP160 T00501011 |
| 06:54 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1015 mb (29.97 in) | WNW 15 kph (WNW 9.2 mph) | - | 10SM |
| | KORH 041154Z 29008KT 10SM CLR 04/M01 A2996 RMK AO2 SLP151 70003 T00441006 10067 20044 53020 |
| 05:54 EST |  Clear | 5°C / 41°F | -1°C / 30°F | 66% | 1014 mb (29.94 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KORH 041054Z AUTO 27005KT 10SM CLR 05/M01 A2994 RMK AO2 SLP145 T00501006 |
| 04:54 EST |  Clear | 5°C / 41°F | -1°C / 30°F | 66% | 1013 mb (29.91 in) | WNW 15 kph (WNW 9.2 mph) | - | 10SM |
| | KORH 040954Z AUTO 29008KT 10SM CLR 05/M01 A2991 RMK AO2 SLP134 T00501006 |
| 03:54 EST |  Overcast | 7°C / 45°F | 1°C / 34°F | 66% | 1013 mb (29.91 in) | W 13 kph (W 8.1 mph) | - | 10SM |
| | KORH 040854Z AUTO 28007KT 10SM OVC033 07/01 A2990 RMK AO2 SLP129 T00670006 51029 |
| 02:54 EST |  Overcast | 7°C / 45°F | 1°C / 34°F | 66% | 1012 mb (29.88 in) | NW 22 kph (NW 13.8 mph) | - | 10SM |
| | KORH 040754Z AUTO 31012KT 10SM OVC031 07/01 A2987 RMK AO2 SLP119 T00670006 |
| 02:27 EST |  Overcast | 7°C / 45°F | 0°C / 32°F | 61% | 1011 mb (29.85 in) | W 17 kph (W 10.4 mph) | - | 10SM |
| | KORH 040727Z AUTO 28009G17KT 10SM OVC031 07/00 A2986 RMK AO2 |
| 00:54 EST |  Clear | 6°C / 43°F | 1°C / 34°F | 71% | 1009 mb (29.8 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KORH 040554Z AUTO 30010KT 10SM CLR 06/01 A2981 RMK AO2 SLP097 T00610011 10128 20061 51026 |