| 12:54 PST |  Overcast | 8°C / 46°F | -2°C / 28°F | 50% | 1016 mb (30 in) | ENE 22 kph (ENE 13.8 mph) | - | 10SM |
| | KAPC 102054Z 07012G18KT 10SM OVC041 08/M02 A3000 RMK AO2 SLP150 T00781017 58030 |
| 11:54 PST |  Overcast | 8°C / 46°F | -2°C / 28°F | 50% | 1017 mb (30.03 in) | E 19 kph (E 11.5 mph) | - | 10SM |
| | KAPC 101954Z 08010G17KT 10SM OVC047 08/M02 A3004 RMK AO2 SLP162 T00831017 |
| 10:54 PST |  Overcast | 8°C / 46°F | -2°C / 28°F | 50% | 1018 mb (30.06 in) | ENE 20 kph (ENE 12.7 mph) | - | 10SM |
| | KAPC 101854Z 06011KT 10SM OVC047 08/M02 A3007 RMK AO2 SLP172 T00781022 |
| 09:54 PST |  Overcast | 7°C / 45°F | -4°C / 25°F | 46% | 1019 mb (30.09 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KAPC 101754Z 07008G18KT 10SM OVC047 07/M04 A3009 RMK AO2 SLP180 T00721039 10072 20028 56002 |
| 08:54 PST |  Overcast | 6°C / 43°F | -4°C / 25°F | 49% | 1019 mb (30.09 in) | E 11 kph (E 6.9 mph) | - | 10SM |
| | KAPC 101654Z 08006KT 10SM OVC045 06/M04 A3009 RMK AO2 SLP181 T00561039 |
| 07:54 PST |  Overcast | 4°C / 39°F | -3°C / 27°F | 61% | 1019 mb (30.09 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KAPC 101554Z 01006KT 10SM SCT045 BKN050 OVC065 04/M03 A3008 RMK AO2 SLP178 T00441033 |
| 06:54 PST |  Overcast | 3°C / 37°F | -3°C / 27°F | 65% | 1019 mb (30.09 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KAPC 101454Z 04005KT 10SM BKN075 OVC110 03/M03 A3010 RMK AO2 SLP182 T00331033 53004 |
| 05:54 PST |  Overcast | 4°C / 39°F | -3°C / 27°F | 61% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KAPC 101354Z 00000KT 10SM OVC065 04/M03 A3009 RMK AO2 SLP181 T00391033 |
| 04:54 PST |  Mostly Cloudy | 4°C / 39°F | -4°C / 25°F | 56% | 1019 mb (30.09 in) | NE 6 kph (NE 3.5 mph) | - | 10SM |
| | KAPC 101254Z 04003KT 10SM BKN060 BKN120 04/M04 A3008 RMK AO2 SLP177 T00391039 |
| 03:54 PST |  Overcast | 3°C / 37°F | -4°C / 25°F | 60% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KAPC 101154Z 00000KT 10SM OVC110 03/M04 A3008 RMK AO2 SLP178 T00331039 10056 20022 58003 |
| 02:54 PST |  Overcast | 3°C / 37°F | -3°C / 27°F | 65% | 1019 mb (30.09 in) | NE 6 kph (NE 3.5 mph) | - | 10SM |
| | KAPC 101054Z 03003KT 10SM OVC100 03/M03 A3009 RMK AO2 SLP182 T00281033 |
| 01:54 PST |  Clear | 4°C / 39°F | -4°C / 25°F | 56% | 1019 mb (30.09 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KAPC 100954Z 34003KT 10SM CLR 04/M04 A3009 RMK AO2 SLP181 T00391039 |
| 00:54 PST |  Clear | 3°C / 37°F | -4°C / 25°F | 60% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KAPC 100854Z 00000KT 10SM CLR 03/M04 A3009 RMK AO2 SLP181 T00281039 58005 |