| 18:53 PST |  Clear | -1°C / 30°F | -16°C / 3°F | 31% | 1018 mb (30.06 in) | ENE 20 kph (ENE 12.7 mph) | - | 10SM |
| | KSPB 070253Z AUTO 07011G20KT 10SM CLR M01/M16 A3005 RMK AO2 SLP178 T10111161 53003 |
| 17:53 PST |  Clear | -1°C / 30°F | -16°C / 3°F | 31% | 1018 mb (30.06 in) | E 30 kph (E 18.4 mph) | - | 10SM |
| | KSPB 070153Z AUTO 08016G22KT 10SM CLR M01/M16 A3005 RMK AO2 PK WND 07026/0108 SLP175 T10061161 |
| 16:53 PST |  Clear | 0°C / 32°F | -16°C / 3°F | 29% | 1018 mb (30.06 in) | ENE 24 kph (ENE 15 mph) | - | 10SM |
| | KSPB 070053Z AUTO 07013G20KT 10SM CLR 00/M16 A3005 RMK AO2 SLP174 T00001156 |
| 15:53 PST |  Clear | 1°C / 34°F | -14°C / 7°F | 32% | 1018 mb (30.06 in) | ENE 20 kph (ENE 12.7 mph) | - | 10SM |
| | KSPB 062353Z AUTO 07011KT 10SM CLR 01/M14 A3005 RMK AO2 SLP175 T00061144 10033 20006 53002 |
| 14:53 PST |  Clear | 2°C / 36°F | -14°C / 7°F | 30% | 1017 mb (30.03 in) | ENE 20 kph (ENE 12.7 mph) | - | 10SM |
| | KSPB 062253Z AUTO 07011KT 10SM CLR 02/M14 A3003 RMK AO2 SLP170 T00171144 |
| 13:53 PST |  Clear | 3°C / 37°F | -14°C / 7°F | 28% | 1017 mb (30.03 in) | ENE 32 kph (ENE 19.6 mph) | - | 10SM |
| | KSPB 062153Z AUTO 06017KT 10SM CLR 03/M14 A3004 RMK AO2 SLP171 T00281144 |
| 12:53 PST |  Clear | 3°C / 37°F | -14°C / 7°F | 28% | 1017 mb (30.03 in) | E 26 kph (E 16.1 mph) | - | 10SM |
| | KSPB 062053Z AUTO 09014G20KT 10SM CLR 03/M14 A3004 RMK AO2 SLP172 T00281139 58017 |
| 11:53 PST |  Clear | 3°C / 37°F | -14°C / 7°F | 28% | 1018 mb (30.06 in) | ENE 24 kph (ENE 15 mph) | - | 10SM |
| | KSPB 061953Z AUTO 07013G19KT 10SM CLR 03/M14 A3005 RMK AO2 PK WND 07027/1901 SLP177 T00281139 |
| 10:53 PST |  Clear | 2°C / 36°F | -14°C / 7°F | 30% | 1019 mb (30.09 in) | E 28 kph (E 17.3 mph) | - | 10SM |
| | KSPB 061853Z AUTO 08015G22KT 10SM CLR 02/M14 A3008 RMK AO2 PK WND 07026/1832 SLP186 T00221144 |
| 09:53 PST |  Partly Cloudy | 2°C / 36°F | -13°C / 9°F | 32% | 1019 mb (30.09 in) | ENE 24 kph (ENE 15 mph) | - | 10SM |
| | KSPB 061753Z AUTO 06013G24KT 10SM FEW070 02/M13 A3009 RMK AO2 SLP189 T00221133 10022 21006 50006 |
| 08:53 PST |  Clear | 1°C / 34°F | -12°C / 10°F | 38% | 1019 mb (30.09 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KSPB 061653Z AUTO 07008G20KT 10SM CLR 01/M12 A3009 RMK AO2 PK WND 08026/1642 SLP190 T00111117 |
| 07:53 PST |  Clear | 1°C / 34°F | -11°C / 12°F | 41% | 1019 mb (30.09 in) | ENE 15 kph (ENE 9.2 mph) | - | 10SM |
| | KSPB 061553Z AUTO 06008KT 10SM CLR 01/M11 A3009 RMK AO2 PK WND 06029/1516 SLP188 T00061106 |
| 06:53 PST |  Partly Cloudy | 2°C / 36°F | -11°C / 12°F | 38% | 1018 mb (30.06 in) | E 30 kph (E 18.4 mph) | - | 10SM |
| | KSPB 061453Z AUTO 08016G28KT 10SM FEW090 SCT100 02/M11 A3007 RMK AO2 PK WND 08028/1445 SLP184 T00171111 53002 |
| 05:53 PST |  Mostly Cloudy | 2°C / 36°F | -10°C / 14°F | 41% | 1018 mb (30.06 in) | E 19 kph (E 11.5 mph) | - | 10SM |
| | KSPB 061353Z AUTO 08010G15KT 10SM BKN085 BKN100 02/M10 A3006 RMK AO2 SLP180 T00171100 |
| 04:53 PST |  Mostly Cloudy | 2°C / 36°F | -8°C / 18°F | 48% | 1018 mb (30.06 in) | ENE 32 kph (ENE 19.6 mph) | - | 10SM |
| | KSPB 061253Z AUTO 06017G23KT 10SM BKN100 02/M08 A3006 RMK AO2 SLP180 T00221083 |
| 03:53 PST |  Partly Cloudy | 0°C / 32°F | -4°C / 25°F | 75% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSPB 061153Z AUTO 00000KT 10SM FEW065 00/M04 A3007 RMK AO2 SLP181 T00001039 10028 21006 51002 |
| 02:53 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1018 mb (30.06 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KSPB 061053Z AUTO 33004KT 10SM CLR 01/M03 A3007 RMK AO2 SLP181 T00061028 |
| 01:53 PST |  Clear | 1°C / 34°F | -2°C / 28°F | 81% | 1018 mb (30.06 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KSPB 060953Z AUTO 35009KT 10SM CLR 01/M02 A3007 RMK AO2 SLP182 T00111022 |
| 00:53 PST |  Partly Cloudy | 0°C / 32°F | -3°C / 27°F | 80% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSPB 060853Z AUTO 00000KT 10SM FEW085 00/M03 A3006 RMK AO2 SLP180 T00001028 56017 |