| 03:55 EST |  Clear | -3°C / 27°F | -5°C / 23°F | 86% | 1019 mb (30.09 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KSFZ 080855Z 30008KT 10SM CLR M03/M05 A3010 RMK AO1 52010 |
| 03:35 EST |  Clear | -3°C / 27°F | -5°C / 23°F | 86% | 1019 mb (30.09 in) | WNW 11 kph (WNW 6.9 mph) | - | 8SM |
| | KSFZ 080835Z 29006KT 8SM CLR M03/M05 A3010 RMK AO1 |
| 03:15 EST |  Clear | -2°C / 28°F | -5°C / 23°F | 80% | 1019 mb (30.09 in) | WNW 13 kph (WNW 8.1 mph) | - | 9SM |
| | KSFZ 080815Z 29007KT 9SM CLR M02/M05 A3010 RMK AO1 |
| 02:55 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1019 mb (30.09 in) | W 13 kph (W 8.1 mph) | - | 8SM |
| | KSFZ 080755Z 28007KT 8SM CLR M02/M04 A3009 RMK AO1 |
| 02:35 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1019 mb (30.09 in) | WNW 15 kph (WNW 9.2 mph) | - | 8SM |
| | KSFZ 080735Z 29008KT 8SM CLR M02/M04 A3008 RMK AO1 |
| 02:15 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1019 mb (30.09 in) | WNW 11 kph (WNW 6.9 mph) | - | 8SM |
| | KSFZ 080715Z 29006KT 8SM CLR M02/M04 A3008 RMK AO1 |
| 01:55 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | W 13 kph (W 8.1 mph) | - | 8SM |
| | KSFZ 080655Z 28007KT 8SM CLR M02/M04 A3007 RMK AO1 |
| 01:35 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | WNW 11 kph (WNW 6.9 mph) | - | 10SM |
| | KSFZ 080635Z 29006KT 10SM CLR M02/M04 A3006 RMK AO1 |
| 01:15 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KSFZ 080615Z 30005KT 10SM CLR M02/M04 A3007 RMK AO1 |
| 00:55 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KSFZ 080555Z 30007KT 10SM CLR M02/M04 A3007 RMK AO1 10000 21020 52003 |
| 00:35 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | WNW 13 kph (WNW 8.1 mph) | - | 9SM |
| | KSFZ 080535Z 29007KT 9SM CLR M02/M04 A3006 RMK AO1 |
| 00:15 EST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1018 mb (30.06 in) | WNW 9 kph (WNW 5.8 mph) | - | 9SM |
| | KSFZ 080515Z 29005KT 9SM CLR M02/M04 A3006 RMK AO1 |