| 07:00 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 041200Z AUTO 00000KT 10SM CLR 03/M01 A3010 RMK AO2 |
| 06:40 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1019 mb (30.09 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KMWK 041140Z AUTO 36003KT 10SM CLR 03/M01 A3010 RMK AO2 |
| 06:21 EST |  Clear | 1°C / 34°F | -1°C / 30°F | 87% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 041121Z AUTO 00000KT 10SM CLR 01/M01 A3010 RMK AO2 |
| 06:00 EST |  Clear | 1°C / 34°F | -1°C / 30°F | 87% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KMWK 041100Z AUTO 00000KT 10SM CLR 01/M01 A3011 RMK AO2 |
| 05:40 EST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KMWK 041040Z AUTO 00000KT 10SM CLR 00/M02 A3012 RMK AO2 |
| 05:20 EST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KMWK 041020Z AUTO 00000KT 10SM CLR 01/M02 A3011 RMK AO2 |
| 05:00 EST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 041000Z AUTO 00000KT 10SM CLR 00/M02 A3010 RMK AO2 |
| 04:40 EST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 040940Z AUTO 00000KT 10SM CLR 00/M02 A3009 RMK AO2 |
| 04:20 EST |  Clear | 1°C / 34°F | -1°C / 30°F | 87% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 040920Z AUTO 00000KT 10SM CLR 01/M01 A3008 RMK AO2 |
| 04:00 EST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 040900Z AUTO 00000KT 10SM CLR 00/M02 A3008 RMK AO2 |
| 03:40 EST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 040840Z AUTO 00000KT 10SM CLR 01/M02 A3008 RMK AO2 |
| 03:20 EST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 040820Z AUTO 00000KT 10SM CLR 01/M02 A3008 RMK AO2 |
| 03:00 EST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KMWK 040800Z AUTO 00000KT 10SM CLR 01/M02 A3008 RMK AO2 |
| 02:40 EST |  Clear | 2°C / 36°F | -1°C / 30°F | 81% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KMWK 040740Z AUTO 00000KT 10SM CLR 02/M01 A3007 RMK AO2 |
| 02:20 EST |  Clear | 2°C / 36°F | -1°C / 30°F | 81% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KMWK 040720Z AUTO 00000KT 10SM CLR 02/M01 A3007 RMK AO2 |
| 02:00 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KMWK 040700Z AUTO 00000KT 10SM CLR 03/M01 A3006 RMK AO2 |
| 01:40 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KMWK 040640Z AUTO 00000KT 10SM CLR 04/M01 A3005 RMK AO2 |
| 01:20 EST |  Clear | 4°C / 39°F | -1°C / 30°F | 70% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KMWK 040620Z AUTO 00000KT 10SM CLR 04/M01 A3004 RMK AO2 |
| 01:00 EST |  Clear | 2°C / 36°F | -1°C / 30°F | 81% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KMWK 040600Z AUTO 00000KT 10SM CLR 02/M01 A3005 RMK AO2 |
| 00:40 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KMWK 040540Z AUTO 00000KT 10SM CLR 03/M01 A3005 RMK AO2 |
| 00:20 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KMWK 040520Z AUTO 00000KT 10SM CLR 03/M01 A3005 RMK AO2 |
| 00:00 EST |  Clear | 3°C / 37°F | -1°C / 30°F | 75% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KMWK 040500Z AUTO 00000KT 10SM CLR 03/M01 A3004 RMK AO2 |