| 05:37 EST |  Partly Cloudy | -1°C / 30°F | -8°C / 18°F | 59% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KW99 061037Z AUTO 00000KT 10SM SCT041 M01/M08 A3028 RMK AO2 |
| 05:17 EST |  Partly Cloudy | -5°C / 23°F | -7°C / 19°F | 86% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KW99 061017Z AUTO 00000KT 10SM SCT039 M05/M07 A3028 RMK AO2 |
| 04:57 EST |  Partly Cloudy | -5°C / 23°F | -7°C / 19°F | 86% | 1025 mb (30.27 in) | Calm | - | 7SM |
| | KW99 060957Z AUTO 00000KT 7SM SCT039 M05/M07 A3027 RMK AO2 |
| 04:37 EST |  Mostly Cloudy | -4°C / 25°F | -7°C / 19°F | 80% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KW99 060937Z AUTO 00000KT 10SM BKN039 M04/M07 A3026 RMK AO2 |
| 04:19 EST |  Partly Cloudy | -4°C / 25°F | -7°C / 19°F | 80% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KW99 060919Z AUTO 00000KT 10SM SCT039 M04/M07 A3026 RMK AO2 |
| 03:57 EST |  Partly Cloudy | -4°C / 25°F | -7°C / 19°F | 80% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KW99 060857Z AUTO 00000KT 10SM SCT039 M04/M07 A3025 RMK AO2 |
| 03:37 EST |  Clear | -3°C / 27°F | -7°C / 19°F | 74% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KW99 060837Z AUTO 00000KT 10SM CLR M03/M07 A3024 RMK AO2 |
| 03:17 EST |  Partly Cloudy | -2°C / 28°F | -7°C / 19°F | 69% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KW99 060817Z AUTO 00000KT 10SM SCT038 M02/M07 A3023 RMK AO2 |
| 02:57 EST |  Clear | -2°C / 28°F | -7°C / 19°F | 69% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KW99 060757Z AUTO 00000KT 10SM CLR M02/M07 A3022 RMK AO2 |
| 02:39 EST |  Clear | 0°C / 32°F | -7°C / 19°F | 60% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KW99 060739Z AUTO 00000KT 10SM CLR 00/M07 A3021 RMK AO2 |
| 02:17 EST |  Clear | 1°C / 34°F | -7°C / 19°F | 56% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KW99 060717Z AUTO 00000KT 10SM CLR 01/M07 A3021 RMK AO2 |
| 01:57 EST |  Clear | 1°C / 34°F | -7°C / 19°F | 56% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KW99 060657Z AUTO 00000KT 10SM CLR 01/M07 A3020 RMK AO2 |
| 01:37 EST |  Clear | 1°C / 34°F | -6°C / 21°F | 60% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KW99 060637Z AUTO 00000KT 10SM CLR 01/M06 A3019 RMK AO2 |
| 01:17 EST |  Clear | 2°C / 36°F | -7°C / 19°F | 52% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KW99 060617Z AUTO 00000KT 10SM CLR 02/M07 A3017 RMK AO2 |
| 00:57 EST |  Partly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KW99 060557Z AUTO 00000KT 10SM SCT038 02/M07 A3016 RMK AO2 |
| 00:37 EST |  Partly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KW99 060537Z AUTO 00000KT 10SM SCT040 02/M07 A3016 RMK AO2 |
| 00:17 EST |  Mostly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KW99 060517Z AUTO 00000KT 10SM BKN040 02/M07 A3016 RMK AO2 |