| 18:56 EST |  Clear | 5°C / 41°F | -3°C / 27°F | 57% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KHPN 012356Z 00000KT 10SM CLR 05/M03 A3005 RMK AO2 SLP183 T00501033 10083 20028 53026 |
| 17:56 EST |  Clear | 4°C / 39°F | -3°C / 27°F | 61% | 1016 mb (30 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KHPN 012256Z 24003KT 10SM CLR 04/M03 A3001 RMK AO2 SLP170 T00441033 |
| 16:56 EST |  Partly Cloudy | 5°C / 41°F | -4°C / 25°F | 53% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KHPN 012156Z 00000KT 10SM FEW080 05/M04 A2998 RMK AO2 SLP160 T00501039 |
| 15:56 EST |  Partly Cloudy | 7°C / 45°F | -4°C / 25°F | 46% | 1015 mb (29.97 in) | W 11 kph (W 6.9 mph) | - | 10SM |
| | KHPN 012056Z 27006KT 10SM FEW050 SCT080 07/M04 A2997 RMK AO2 SLP155 T00671039 51016 |
| 14:56 EST |  Mostly Cloudy | 7°C / 45°F | -4°C / 25°F | 46% | 1015 mb (29.97 in) | WNW 24 kph (WNW 15 mph) | - | 10SM |
| | KHPN 011956Z 29013G17KT 10SM SCT050 BKN080 07/M04 A2996 RMK AO2 SLP151 T00721039 |
| 13:56 EST |  Mostly Cloudy | 7°C / 45°F | -4°C / 25°F | 46% | 1014 mb (29.94 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KHPN 011856Z 28008KT 10SM BKN047 BKN080 07/M04 A2994 RMK AO2 SLP144 T00671039 |
| 12:56 EST |  Mostly Cloudy | 6°C / 43°F | -4°C / 25°F | 49% | 1014 mb (29.94 in) | W 19 kph (W 11.5 mph) | - | 10SM |
| | KHPN 011756Z 27010G16KT 10SM BKN043 06/M04 A2993 RMK AO2 SLP140 T00611039 10067 21006 56006 |
| 11:56 EST |  Partly Cloudy | 6°C / 43°F | -4°C / 25°F | 49% | 1014 mb (29.94 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KHPN 011656Z 26007G16KT 190V300 10SM FEW043 06/M04 A2993 RMK AO2 SLP140 T00561039 |
| 10:56 EST |  Mostly Cloudy | 4°C / 39°F | -4°C / 25°F | 56% | 1014 mb (29.94 in) | W 15 kph (W 9.2 mph) | - | 10SM |
| | KHPN 011556Z 27008G20KT 10SM SCT050 BKN095 04/M04 A2994 RMK AO2 SLP145 T00441044 |
| 09:56 EST |  Mostly Cloudy | 3°C / 37°F | -5°C / 23°F | 56% | 1014 mb (29.94 in) | Variable 9 kph (Variable 5.8 mph) | - | 10SM |
| | KHPN 011456Z VRB05KT 10SM FEW050 BKN075 03/M05 A2995 RMK AO2 SLP146 T00281050 51016 |
| 08:56 EST |  Mostly Cloudy | 2°C / 36°F | -5°C / 23°F | 60% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KHPN 011356Z 00000KT 10SM FEW050 BKN095 02/M05 A2993 RMK AO2 SLP141 T00171050 |
| 07:56 EST |  Mostly Cloudy | 1°C / 34°F | -6°C / 21°F | 60% | 1013 mb (29.91 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KHPN 011256Z 25003KT 10SM FEW090 BKN100 01/M06 A2992 RMK AO2 SLP138 T00111056 |
| 06:56 EST |  Clear | -1°C / 30°F | -5°C / 23°F | 75% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KHPN 011156Z 00000KT 10SM CLR M01/M05 A2990 RMK AO2 SLP131 70003 T10061050 10022 21011 51024 |
| 05:56 EST |  Clear | 1°C / 34°F | -6°C / 21°F | 60% | 1012 mb (29.88 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KHPN 011056Z 27004KT 10SM CLR 01/M06 A2987 RMK AO2 SLP122 T00061056 |
| 04:56 EST |  Clear | 1°C / 34°F | -6°C / 21°F | 60% | 1011 mb (29.85 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KHPN 010956Z 31007KT 10SM CLR 01/M06 A2985 RMK AO2 SLP115 T00111061 |
| 03:56 EST |  Clear | 1°C / 34°F | -6°C / 21°F | 60% | 1010 mb (29.83 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KHPN 010856Z 31011KT 10SM CLR 01/M06 A2983 RMK AO2 SLP106 T00111061 51019 |
| 02:56 EST |  Clear | 1°C / 34°F | -6°C / 21°F | 60% | 1010 mb (29.83 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KHPN 010756Z 31009KT 10SM CLR 01/M06 A2982 RMK AO2 SLP102 T00111061 |
| 01:56 EST |  Clear | 2°C / 36°F | -5°C / 23°F | 60% | 1009 mb (29.8 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KHPN 010656Z 31011KT 10SM CLR 02/M05 A2980 RMK AO2 SLP097 T00171050 |
| 00:56 EST |  Clear | 2°C / 36°F | -4°C / 25°F | 65% | 1008 mb (29.77 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KHPN 010556Z 32010G17KT 10SM CLR 02/M04 A2977 RMK AO2 SLP085 T00221044 10061 20022 53015 |