| 07:53 PST |  Clear | -5°C / 23°F | -7°C / 19°F | 86% | 1031 mb (30.45 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KPSC 231553Z 32003KT 10SM CLR M05/M07 A3045 RMK AO2 SLP316 T10501067 |
| 06:53 PST |  Clear | -6°C / 21°F | -8°C / 18°F | 86% | 1031 mb (30.45 in) | WNW 7 kph (WNW 4.6 mph) | - | 10SM |
| | KPSC 231453Z 29004KT 10SM CLR M06/M08 A3044 RMK AO2 SLP311 T10561078 53026 |
| 05:53 PST |  Clear | -4°C / 25°F | -7°C / 19°F | 80% | 1030 mb (30.42 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KPSC 231353Z AUTO 28004KT 10SM CLR M04/M07 A3041 RMK AO2 SLP303 T10441067 |
| 04:53 PST |  Clear | -5°C / 23°F | -7°C / 19°F | 86% | 1029 mb (30.39 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KPSC 231253Z AUTO 35004KT 10SM CLR M05/M07 A3038 RMK AO2 SLP291 T10501067 |
| 03:53 PST |  Clear | -4°C / 25°F | -6°C / 21°F | 86% | 1028 mb (30.36 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KPSC 231153Z AUTO 35003KT 10SM CLR M04/M06 A3036 RMK AO2 SLP283 T10441061 10000 21056 53013 |
| 02:53 PST |  Clear | -4°C / 25°F | -6°C / 21°F | 86% | 1027 mb (30.33 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KPSC 231053Z AUTO 01006KT 10SM CLR M04/M06 A3034 RMK AO2 SLP278 T10441056 |
| 01:53 PST |  Clear | -4°C / 25°F | -6°C / 21°F | 86% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KPSC 230953Z AUTO 00000KT 10SM CLR M04/M06 A3033 RMK AO2 SLP274 T10441061 |
| 00:53 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KPSC 230853Z AUTO 00000KT 10SM CLR M03/M04 A3032 RMK AO2 SLP270 T10331039 51024 |