| 04:00 EST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KBCB 120900Z AUTO 00000KT 10SM CLR M09/M11 A3045 RMK AO2 |
| 03:40 EST |  Clear | -9°C / 16°F | -10°C / 14°F | 93% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KBCB 120840Z AUTO 00000KT 10SM CLR M09/M10 A3046 RMK AO2 |
| 03:20 EST |  Clear | -9°C / 16°F | -10°C / 14°F | 93% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KBCB 120820Z AUTO 00000KT 10SM CLR M09/M10 A3046 RMK AO2 |
| 03:00 EST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1032 mb (30.48 in) | Calm | - | 10SM |
| | KBCB 120800Z AUTO 00000KT 10SM CLR M08/M10 A3047 RMK AO2 |
| 02:40 EST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1032 mb (30.48 in) | Calm | - | 10SM |
| | KBCB 120740Z AUTO 00000KT 10SM CLR M08/M10 A3047 RMK AO2 |
| 02:20 EST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1032 mb (30.48 in) | Calm | - | 10SM |
| | KBCB 120720Z AUTO 00000KT 10SM CLR M08/M11 A3047 RMK AO2 |
| 02:00 EST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1032 mb (30.48 in) | Calm | - | 10SM |
| | KBCB 120700Z AUTO 00000KT 10SM CLR M08/M11 A3047 RMK AO2 |
| 01:40 EST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KBCB 120640Z AUTO 00000KT 10SM CLR M08/M11 A3046 RMK AO2 |
| 01:20 EST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KBCB 120620Z AUTO 00000KT 10SM CLR M08/M11 A3046 RMK AO2 |
| 01:00 EST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KBCB 120600Z AUTO 00000KT 10SM CLR M08/M11 A3044 RMK AO2 |
| 00:40 EST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1031 mb (30.45 in) | Calm | - | 10SM |
| | KBCB 120540Z AUTO 00000KT 10SM CLR M08/M11 A3044 RMK AO2 |
| 00:20 EST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KBCB 120520Z AUTO 00000KT 10SM CLR M08/M11 A3043 RMK AO2 |
| 00:00 EST |  Clear | -6°C / 21°F | -12°C / 10°F | 63% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KBCB 120500Z AUTO 00000KT 10SM CLR M06/M12 A3043 RMK AO2 |