| 22:53 PST |  Clear | 1°C / 34°F | -1°C / 30°F | 87% | 1019 mb (30.09 in) | Calm | - | 9SM |
| | KSTS 100653Z 00000KT 9SM CLR 01/M01 A3010 RMK AO2 SLP186 T00111011 |
| 21:53 PST |  Clear | 2°C / 36°F | -1°C / 30°F | 81% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSTS 100553Z 00000KT 10SM CLR 02/M01 A3010 RMK AO2 SLP187 T00171011 10067 20011 51006 |
| 20:53 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSTS 100453Z 00000KT 10SM CLR 02/M02 A3009 RMK AO2 SLP185 T00221017 |
| 19:53 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSTS 100353Z 00000KT 10SM CLR 02/M02 A3009 RMK AO2 SLP184 T00171017 |
| 18:53 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1019 mb (30.09 in) | NNE 6 kph (NNE 3.5 mph) | - | 10SM |
| | KSTS 100253Z 02003KT 10SM CLR 02/M02 A3008 RMK AO2 SLP182 T00221022 58001 |
| 17:53 PST |  Clear | 4°C / 39°F | -3°C / 27°F | 61% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSTS 100153Z 00000KT 10SM CLR 04/M03 A3009 RMK AO2 SLP183 T00391033 |
| 16:53 PST |  Mostly Cloudy | 4°C / 39°F | -3°C / 27°F | 61% | 1019 mb (30.09 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KSTS 100053Z 18003KT 10SM BKN250 04/M03 A3009 RMK AO2 SLP182 T00441028 |
| 15:53 PST |  Mostly Cloudy | 7°C / 45°F | -2°C / 28°F | 53% | 1019 mb (30.09 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSTS 092353Z 25003KT 10SM BKN250 07/M02 A3008 RMK AO2 SLP182 T00671017 10078 20011 56011 |
| 14:53 PST |  Mostly Cloudy | 7°C / 45°F | -3°C / 27°F | 49% | 1019 mb (30.09 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSTS 092253Z 21004KT 10SM BKN250 07/M03 A3008 RMK AO2 SLP182 T00721028 |
| 13:53 PST |  Mostly Cloudy | 7°C / 45°F | -3°C / 27°F | 49% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSTS 092153Z 00000KT 10SM BKN250 07/M03 A3009 RMK AO2 SLP184 T00721033 |
| 12:53 PST |  Mostly Cloudy | 7°C / 45°F | -4°C / 25°F | 46% | 1020 mb (30.12 in) | SE 6 kph (SE 3.5 mph) | - | 10SM |
| | KSTS 092053Z 12003KT 10SM BKN250 07/M04 A3012 RMK AO2 SLP193 T00721039 58027 |
| 11:53 PST |  Clear | 5°C / 41°F | -3°C / 27°F | 57% | 1021 mb (30.15 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSTS 091953Z 25003KT 10SM CLR 05/M03 A3015 RMK AO2 SLP203 T00501033 |
| 10:53 PST |  Partly Cloudy | 4°C / 39°F | -3°C / 27°F | 61% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KSTS 091853Z 00000KT 10SM SCT250 04/M03 A3018 RMK AO2 SLP214 T00391028 |
| 09:53 PST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KSTS 091753Z 00000KT 10SM CLR 01/M02 A3020 RMK AO2 SLP220 T00111022 10011 21056 50003 |
| 08:53 PST |  Clear | -1°C / 30°F | -3°C / 27°F | 86% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KSTS 091653Z 00000KT 10SM CLR M01/M03 A3021 RMK AO2 SLP223 T10111028 |
| 07:53 PST |  Clear | -4°C / 25°F | -5°C / 23°F | 93% | 1022 mb (30.18 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KSTS 091553Z 34006KT 10SM CLR M04/M05 A3019 RMK AO2 SLP220 T10441050 |
| 06:53 PST |  Clear | -6°C / 21°F | -6°C / 21°F | 100% | 1022 mb (30.18 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KSTS 091453Z 36003KT 10SM CLR M06/M06 A3019 RMK AO2 SLP218 T10561061 51001 |
| 05:53 PST |  Clear | -5°C / 23°F | -6°C / 21°F | 93% | 1022 mb (30.18 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KSTS 091353Z AUTO 33005KT 10SM CLR M05/M06 A3019 RMK AO2 SLP219 T10501056 FZRANO |
| 04:53 PST |  Clear | -5°C / 23°F | -6°C / 21°F | 93% | 1022 mb (30.18 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KSTS 091253Z AUTO 35007KT 10SM CLR M05/M06 A3019 RMK AO2 SLP218 T10501056 FZRANO |
| 03:53 PST |  Clear | -4°C / 25°F | -5°C / 23°F | 93% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KSTS 091153Z AUTO 00000KT 10SM CLR M04/M05 A3019 RMK AO2 SLP217 T10441050 11017 21050 51006 FZRANO |
| 02:53 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1022 mb (30.18 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KSTS 091053Z AUTO 33006KT 10SM CLR M03/M04 A3018 RMK AO2 SLP214 T10331044 FZRANO |
| 01:53 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1022 mb (30.18 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KSTS 090953Z AUTO 35004KT 10SM CLR M03/M04 A3019 RMK AO2 SLP216 T10331044 FZRANO |
| 00:53 PST |  Clear | -4°C / 25°F | -5°C / 23°F | 93% | 1022 mb (30.18 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KSTS 090853Z AUTO 33004KT 10SM CLR M04/M05 A3017 RMK AO2 SLP211 T10391050 50004 FZRANO |