| 13:53 PST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KSFF 252153Z 00000KT 10SM CLR M01/M07 A3037 RMK AO2 SLP309 T10061072 |
| 12:53 PST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 252053Z 00000KT 10SM CLR M01/M07 A3038 RMK AO2 SLP311 T10061072 58008 |
| 11:53 PST |  Clear | -2°C / 28°F | -8°C / 18°F | 64% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251953Z 00000KT 10SM CLR M02/M08 A3039 RMK AO2 SLP318 T10221078 |
| 10:53 PST |  Clear | -3°C / 27°F | -8°C / 18°F | 69% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251853Z 00000KT 10SM CLR M03/M08 A3040 RMK AO2 SLP323 T10331078 |
| 09:53 PST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1029 mb (30.39 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KSFF 251753Z 14003KT 10SM CLR M04/M08 A3040 RMK AO2 SLP324 T10441078 11039 21078 53001 |
| 08:53 PST |  Clear | -6°C / 21°F | -8°C / 18°F | 86% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251653Z 00000KT 10SM CLR M06/M08 A3040 RMK AO2 SLP323 T10561078 |
| 07:53 PST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251553Z 00000KT 10SM CLR M07/M09 A3039 RMK AO2 SLP321 T10721094 |
| 06:53 PST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251453Z 00000KT 10SM CLR M07/M10 A3040 RMK AO2 SLP323 T10671100 53000 |
| 05:53 PST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251353Z 00000KT 10SM CLR M07/M09 A3040 RMK AO2 SLP322 T10671094 |
| 04:53 PST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251253Z AUTO 00000KT 10SM CLR M07/M09 A3039 RMK AO2 SLP320 T10671089 |
| 03:53 PST |  Partly Cloudy | -6°C / 21°F | -9°C / 16°F | 80% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251153Z AUTO 00000KT 10SM SCT031 M06/M09 A3040 RMK AO2 SLP321 T10611089 11061 21072 53002 |
| 02:53 PST |  Clear | -6°C / 21°F | -9°C / 16°F | 80% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KSFF 251053Z AUTO 00000KT 10SM CLR M06/M09 A3040 RMK AO2 SLP321 T10611089 |
| 01:53 PST |  Clear Fog And Mist | -6°C / 21°F | -8°C / 18°F | 86% | 1029 mb (30.39 in) | Calm | - | 6SM |
| | KSFF 250953Z AUTO 00000KT 6SM BR CLR M06/M08 A3039 RMK AO2 SLP317 T10611083 |
| 00:53 PST |  Partly Cloudy | -7°C / 19°F | -9°C / 16°F | 86% | 1029 mb (30.39 in) | E 6 kph (E 3.5 mph) | - | 8SM |
| | KSFF 250853Z AUTO 10003KT 8SM FEW030 M07/M09 A3040 RMK AO2 SLP320 T10671094 56003 |