| 09:53 PST |  Clear | -2°C / 28°F | -9°C / 16°F | 59% | 1028 mb (30.36 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KSFF 231753Z 30005KT 10SM CLR M02/M09 A3036 RMK AO2 SLP298 T10221089 11017 21033 51015 |
| 08:53 PST |  Clear | -3°C / 27°F | -10°C / 14°F | 59% | 1027 mb (30.33 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KSFF 231653Z 32003KT 10SM CLR M03/M10 A3034 RMK AO2 SLP294 T10281100 |
| 07:53 PST |  Partly Cloudy | -3°C / 27°F | -11°C / 12°F | 54% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KSFF 231553Z 00000KT 10SM FEW015 M03/M11 A3033 RMK AO2 SLP290 T10281111 |
| 06:53 PST |  Clear | -2°C / 28°F | -10°C / 14°F | 55% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KSFF 231453Z 00000KT 10SM CLR M02/M10 A3031 RMK AO2 SLP283 T10221100 51017 |
| 05:53 PST |  Partly Cloudy | -3°C / 27°F | -7°C / 19°F | 74% | 1026 mb (30.3 in) | Variable 11 kph (Variable 6.9 mph) | - | 10SM |
| | KSFF 231353Z VRB06KT 10SM FEW110 M03/M07 A3030 RMK AO2 SLP278 T10281072 |
| 04:53 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KSFF 231253Z AUTO 00000KT 10SM CLR M03/M04 A3028 RMK AO2 SLP273 T10281044 |
| 03:53 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KSFF 231153Z AUTO 00000KT 10SM CLR M03/M04 A3026 RMK AO2 SLP265 T10281044 10006 21028 51014 |
| 02:53 PST |  Clear | -2°C / 28°F | -4°C / 25°F | 86% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSFF 231053Z AUTO 00000KT 10SM CLR M02/M04 A3025 RMK AO2 SLP260 T10171044 |
| 02:27 PST |  Partly Cloudy | -2°C / 28°F | -4°C / 25°F | 86% | 1024 mb (30.24 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSFF 231027Z AUTO 25003KT 10SM SCT013 M02/M04 A3025 RMK AO2 |
| 02:00 PST |  Mostly Cloudy | -1°C / 30°F | -4°C / 25°F | 80% | 1024 mb (30.24 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSFF 231000Z AUTO 25003KT 10SM BKN013 M01/M04 A3024 RMK AO2 |
| 01:53 PST |  Overcast | -1°C / 30°F | -4°C / 25°F | 80% | 1024 mb (30.24 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KSFF 230953Z AUTO 25004KT 10SM OVC015 M01/M04 A3024 RMK AO2 SLP256 T10111044 |
| 00:53 PST |  Overcast | 0°C / 32°F | -4°C / 25°F | 75% | 1023 mb (30.21 in) | WNW 9 kph (WNW 5.8 mph) | - | 10SM |
| | KSFF 230853Z AUTO 29005KT 10SM OVC017 00/M04 A3021 RMK AO2 SLP246 T00001039 51018 |