| 06:20 EST |  Overcast Unknown Precip | -3°C / 27°F | -6°C / 21°F | 80% | 1024 mb (30.24 in) | NNE 7 kph (NNE 4.6 mph) | - | 7SM |
| | KSHD 251120Z AUTO 02004KT 7SM UP BKN020 OVC026 M03/M06 A3024 RMK AO2 |
| 06:00 EST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KSHD 251100Z AUTO 00000KT 10SM BKN026 OVC060 M04/M06 A3027 RMK AO2 |
| 05:40 EST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KSHD 251040Z AUTO 00000KT 10SM BKN028 OVC060 M04/M06 A3026 RMK AO2 |
| 05:20 EST |  Overcast | -4°C / 25°F | -6°C / 21°F | 86% | 1025 mb (30.27 in) | Calm | - | 7SM |
| | KSHD 251020Z AUTO 00000KT 7SM OVC060 M04/M06 A3027 RMK AO2 |
| 05:00 EST |  Overcast | -5°C / 23°F | -6°C / 21°F | 93% | 1025 mb (30.27 in) | Calm | - | 7SM |
| | KSHD 251000Z AUTO 00000KT 7SM OVC060 M05/M06 A3027 RMK AO2 |
| 04:40 EST |  Overcast Unknown Precip | -5°C / 23°F | -7°C / 19°F | 86% | 1025 mb (30.27 in) | SW 7 kph (SW 4.6 mph) | - | 7SM |
| | KSHD 250940Z AUTO 23004KT 7SM UP OVC060 M05/M07 A3028 RMK AO2 |
| 04:20 EST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1025 mb (30.27 in) | Calm | - | 7SM |
| | KSHD 250920Z AUTO 00000KT 7SM OVC060 M06/M07 A3026 RMK AO2 |
| 04:00 EST |  Overcast | -6°C / 21°F | -7°C / 19°F | 93% | 1025 mb (30.27 in) | NE 7 kph (NE 4.6 mph) | - | 7SM |
| | KSHD 250900Z AUTO 03004KT 7SM OVC070 M06/M07 A3026 RMK AO2 |
| 03:40 EST |  Overcast Fog And Mist | -6°C / 21°F | -7°C / 19°F | 93% | 1025 mb (30.27 in) | Calm | - | 5SM |
| | KSHD 250840Z AUTO 00000KT 5SM BR OVC070 M06/M07 A3028 RMK AO2 |
| 03:20 EST |  Mostly Cloudy Fog And Mist | -7°C / 19°F | -8°C / 18°F | 93% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KSHD 250820Z AUTO 00000KT 5SM BR BKN070 M07/M08 A3029 RMK AO2 |
| 03:00 EST |  Mostly Cloudy Fog And Mist | -7°C / 19°F | -8°C / 18°F | 93% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KSHD 250800Z AUTO 00000KT 5SM BR BKN070 M07/M08 A3029 RMK AO2 |
| 02:40 EST |  Clear Fog And Mist | -8°C / 18°F | -8°C / 18°F | 100% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KSHD 250740Z AUTO 00000KT 5SM BR CLR M08/M08 A3030 RMK AO2 |
| 02:20 EST |  Clear Fog And Mist | -8°C / 18°F | -9°C / 16°F | 93% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KSHD 250720Z AUTO 00000KT 5SM BR CLR M08/M09 A3030 RMK AO2 |
| 02:00 EST |  Clear | -9°C / 16°F | -9°C / 16°F | 100% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KSHD 250700Z AUTO 00000KT 7SM CLR M09/M09 A3030 RMK AO2 |
| 01:40 EST |  Clear Fog And Mist | -8°C / 18°F | -9°C / 16°F | 93% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KSHD 250640Z AUTO 00000KT 5SM BR CLR M08/M09 A3030 RMK AO2 |
| 01:20 EST |  Clear Fog And Mist | -9°C / 16°F | -10°C / 14°F | 93% | 1026 mb (30.3 in) | Calm | - | 5SM |
| | KSHD 250620Z AUTO 00000KT 5SM BR CLR M09/M10 A3030 RMK AO2 |
| 01:00 EST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KSHD 250600Z AUTO 00000KT 7SM CLR M09/M11 A3031 RMK AO2 |
| 00:40 EST |  Clear | -8°C / 18°F | -9°C / 16°F | 93% | 1026 mb (30.3 in) | Calm | - | 7SM |
| | KSHD 250540Z AUTO 00000KT 7SM CLR M08/M09 A3030 RMK AO2 |
| 00:20 EST |  Clear | -9°C / 16°F | -10°C / 14°F | 93% | 1027 mb (30.33 in) | Calm | - | 7SM |
| | KSHD 250520Z AUTO 00000KT 7SM CLR M09/M10 A3032 RMK AO2 |
| 00:00 EST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1027 mb (30.33 in) | Calm | - | 7SM |
| | KSHD 250500Z AUTO 00000KT 7SM CLR M09/M11 A3033 RMK AO2 |