| 09:56 EST |  Clear | 8°C / 46°F | -2°C / 28°F | 50% | 1013 mb (29.91 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KHPN 291456Z 27004KT 10SM CLR 08/M02 A2992 RMK AO2 SLP134 T00831017 50002 |
| 08:56 EST |  Clear | 6°C / 43°F | -2°C / 28°F | 57% | 1013 mb (29.91 in) | Variable 7 kph (Variable 4.6 mph) | - | 10SM |
| | KHPN 291356Z VRB04KT 10SM CLR 06/M02 A2992 RMK AO2 SLP136 T00561022 |
| 07:56 EST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KHPN 291256Z 00000KT 10SM CLR 03/M02 A2991 RMK AO2 SLP132 T00281017 |
| 06:56 EST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1013 mb (29.91 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KHPN 291156Z 24003KT 10SM CLR 02/M02 A2991 RMK AO2 SLP133 T00171022 10056 20011 53010 |
| 05:56 EST |  Partly Cloudy | 2°C / 36°F | -2°C / 28°F | 75% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KHPN 291056Z 00000KT 10SM FEW100 02/M02 A2990 RMK AO2 SLP129 T00221022 |
| 04:56 EST |  Partly Cloudy | 3°C / 37°F | -2°C / 28°F | 70% | 1012 mb (29.88 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KHPN 290956Z 25004KT 10SM FEW100 03/M02 A2988 RMK AO2 SLP124 T00281017 |
| 03:56 EST |  Partly Cloudy | 3°C / 37°F | -2°C / 28°F | 70% | 1012 mb (29.88 in) | Variable 6 kph (Variable 3.5 mph) | - | 10SM |
| | KHPN 290856Z VRB03KT 10SM FEW100 03/M02 A2988 RMK AO2 SLP122 T00331017 51013 |
| 02:56 EST |  Partly Cloudy | 3°C / 37°F | -2°C / 28°F | 70% | 1012 mb (29.88 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KHPN 290756Z 23003KT 10SM SCT100 03/M02 A2987 RMK AO2 SLP119 T00331017 |
| 01:56 EST |  Clear | 5°C / 41°F | -2°C / 28°F | 61% | 1011 mb (29.85 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KHPN 290656Z 25005KT 10SM CLR 05/M02 A2986 RMK AO2 SLP117 T00501022 |
| 00:56 EST |  Clear | 5°C / 41°F | -2°C / 28°F | 61% | 1010 mb (29.83 in) | W 13 kph (W 8.1 mph) | - | 10SM |
| | KHPN 290556Z AUTO 28007KT 10SM CLR 05/M02 A2984 RMK AO2 SLP108 T00501022 10067 20050 51011 TSNO |