| 06:54 EST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1010 mb (29.83 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KORH 291154Z 24008KT 10SM CLR 01/M02 A2982 RMK AO2 SLP106 T00111017 10033 20006 53014 |
| 05:54 EST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1009 mb (29.8 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KORH 291054Z AUTO 24005KT 10SM CLR 02/M02 A2980 RMK AO2 SLP099 T00171017 |
| 04:54 EST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1009 mb (29.8 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KORH 290954Z AUTO 25005KT 10SM CLR 02/M02 A2979 RMK AO2 SLP094 T00221017 |
| 03:54 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1008 mb (29.77 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KORH 290854Z AUTO 25007KT 10SM CLR 03/M01 A2978 RMK AO2 SLP090 T00281011 53020 |
| 02:54 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1007 mb (29.74 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KORH 290754Z AUTO 26008KT 10SM CLR 03/M01 A2974 RMK AO2 SLP078 T00331011 |
| 01:54 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1007 mb (29.74 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KORH 290654Z AUTO 27010G16KT 10SM CLR 03/M01 A2973 RMK AO2 SLP075 T00331011 |
| 00:54 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1006 mb (29.71 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KORH 290554Z AUTO 28008G14KT 10SM CLR 03/M01 A2971 RMK AO2 SLP069 T00331006 10044 20033 51017 |