| 11:55 EST |  Clear | 1°C / 34°F | -8°C / 18°F | 51% | 1024 mb (30.24 in) | SSE 19 kph (SSE 11.5 mph) | - | 10SM |
| | KPHN 061655Z AUTO 20010G14KT 10SM CLR 01/M08 A3023 RMK AO2 |
| 11:37 EST |  Clear | 1°C / 34°F | -8°C / 18°F | 51% | 1024 mb (30.24 in) | SW 15 kph (SW 9.2 mph) | - | 10SM |
| | KPHN 061637Z AUTO 21008G15KT 10SM CLR 01/M08 A3024 RMK AO2 |
| 11:17 EST |  Clear | 0°C / 32°F | -8°C / 18°F | 55% | 1024 mb (30.24 in) | S 17 kph (S 10.4 mph) | - | 10SM |
| | KPHN 061617Z AUTO 19009KT 10SM CLR 00/M08 A3024 RMK AO2 |
| 10:55 EST |  Partly Cloudy | 0°C / 32°F | -8°C / 18°F | 55% | 1024 mb (30.24 in) | S 17 kph (S 10.4 mph) | - | 10SM |
| | KPHN 061555Z AUTO 19009KT 10SM SCT060 00/M08 A3025 RMK AO2 |
| 10:37 EST |  Overcast | 0°C / 32°F | -8°C / 18°F | 55% | 1025 mb (30.27 in) | SSE 20 kph (SSE 12.7 mph) | - | 10SM |
| | KPHN 061537Z AUTO 20011G15KT 10SM OVC060 00/M08 A3026 RMK AO2 |
| 10:17 EST |  Overcast | -1°C / 30°F | -7°C / 19°F | 64% | 1025 mb (30.27 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KPHN 061517Z AUTO 21006KT 10SM OVC060 M01/M07 A3026 RMK AO2 |
| 09:55 EST |  Partly Cloudy | -1°C / 30°F | -8°C / 18°F | 59% | 1025 mb (30.27 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KPHN 061455Z AUTO 19007KT 10SM SCT060 M01/M08 A3026 RMK AO2 |
| 09:37 EST |  Clear | -2°C / 28°F | -8°C / 18°F | 64% | 1024 mb (30.24 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KPHN 061437Z AUTO 20008KT 10SM CLR M02/M08 A3025 RMK AO2 |
| 09:17 EST |  Clear | -3°C / 27°F | -8°C / 18°F | 69% | 1024 mb (30.24 in) | SSE 13 kph (SSE 8.1 mph) | - | 10SM |
| | KPHN 061417Z AUTO 20007KT 10SM CLR M03/M08 A3024 RMK AO2 |
| 08:55 EST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1024 mb (30.24 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KPHN 061355Z AUTO 21005KT 10SM CLR M04/M08 A3025 RMK AO2 |
| 08:37 EST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1024 mb (30.24 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KPHN 061337Z AUTO 20006KT 10SM CLR M04/M08 A3024 RMK AO2 |
| 08:17 EST |  Clear | -5°C / 23°F | -8°C / 18°F | 80% | 1024 mb (30.24 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KPHN 061317Z AUTO 21005KT 10SM CLR M05/M08 A3024 RMK AO2 |
| 07:55 EST |  Clear | -5°C / 23°F | -9°C / 16°F | 74% | 1024 mb (30.24 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KPHN 061255Z AUTO 21005KT 10SM CLR M05/M09 A3024 RMK AO2 |
| 07:37 EST |  Clear | -5°C / 23°F | -9°C / 16°F | 74% | 1024 mb (30.24 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KPHN 061237Z AUTO 21004KT 10SM CLR M05/M09 A3024 RMK AO2 |
| 07:17 EST |  Clear | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KPHN 061217Z AUTO 21003KT 10SM CLR M06/M09 A3024 RMK AO2 |
| 06:55 EST |  Clear | -6°C / 21°F | -9°C / 16°F | 80% | 1024 mb (30.24 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KPHN 061155Z AUTO 20004KT 10SM CLR M06/M09 A3023 RMK AO2 |
| 06:37 EST |  Clear | -6°C / 21°F | -8°C / 18°F | 86% | 1024 mb (30.24 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KPHN 061137Z AUTO 19003KT 10SM CLR M06/M08 A3023 RMK AO2 |
| 06:17 EST |  Clear | -6°C / 21°F | -8°C / 18°F | 86% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KPHN 061117Z AUTO 00000KT 10SM CLR M06/M08 A3022 RMK AO2 |
| 05:55 EST |  Partly Cloudy | -5°C / 23°F | -8°C / 18°F | 80% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KPHN 061055Z AUTO 00000KT 10SM SCT048 M05/M08 A3022 RMK AO2 |
| 05:37 EST |  Overcast | -5°C / 23°F | -8°C / 18°F | 80% | 1023 mb (30.21 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KPHN 061037Z AUTO 20003KT 10SM OVC048 M05/M08 A3022 RMK AO2 |
| 05:17 EST |  Partly Cloudy | -5°C / 23°F | -8°C / 18°F | 80% | 1023 mb (30.21 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KPHN 061017Z AUTO 20003KT 10SM SCT046 M05/M08 A3022 RMK AO2 |
| 04:55 EST |  Clear | -6°C / 21°F | -8°C / 18°F | 86% | 1023 mb (30.21 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KPHN 060955Z AUTO 19003KT 10SM CLR M06/M08 A3021 RMK AO2 |
| 04:37 EST |  Clear | -5°C / 23°F | -8°C / 18°F | 80% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KPHN 060937Z AUTO 00000KT 10SM CLR M05/M08 A3022 RMK AO2 |
| 04:17 EST |  Clear | -5°C / 23°F | -8°C / 18°F | 80% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KPHN 060917Z AUTO 00000KT 10SM CLR M05/M08 A3022 RMK AO2 |
| 03:55 EST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KPHN 060855Z AUTO 00000KT 10SM CLR M04/M08 A3021 RMK AO2 |
| 03:37 EST |  Clear | -3°C / 27°F | -8°C / 18°F | 69% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KPHN 060837Z AUTO 00000KT 10SM CLR M03/M08 A3022 RMK AO2 |
| 03:17 EST |  Partly Cloudy | -3°C / 27°F | -8°C / 18°F | 69% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KPHN 060817Z AUTO 00000KT 10SM SCT044 M03/M08 A3020 RMK AO2 |
| 02:55 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KPHN 060755Z AUTO 00000KT 10SM OVC046 M03/M08 A3020 RMK AO2 |
| 02:37 EST |  Mostly Cloudy | -3°C / 27°F | -8°C / 18°F | 69% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KPHN 060737Z AUTO 00000KT 10SM BKN046 M03/M08 A3019 RMK AO2 |
| 02:17 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1022 mb (30.18 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KPHN 060717Z AUTO 22003KT 10SM OVC044 M03/M08 A3018 RMK AO2 |
| 01:55 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KPHN 060655Z AUTO 00000KT 10SM OVC044 M03/M08 A3018 RMK AO2 |
| 01:37 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KPHN 060637Z AUTO 00000KT 10SM OVC044 M03/M08 A3017 RMK AO2 |
| 01:17 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1022 mb (30.18 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KPHN 060617Z AUTO 22005KT 10SM OVC044 M03/M08 A3017 RMK AO2 |
| 00:55 EST |  Overcast | -2°C / 28°F | -8°C / 18°F | 64% | 1022 mb (30.18 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KPHN 060555Z AUTO 23005KT 10SM OVC044 M02/M08 A3017 RMK AO2 |
| 00:37 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1022 mb (30.18 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KPHN 060537Z AUTO 23004KT 10SM OVC046 M03/M08 A3017 RMK AO2 |
| 00:17 EST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1021 mb (30.15 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KPHN 060517Z AUTO 21004KT 10SM OVC048 M03/M08 A3016 RMK AO2 |