| 18:53 PST |  Clear | -3°C / 27°F | -7°C / 19°F | 74% | 1016 mb (30 in) | Calm | - | 8SM |
| | KRBG 110253Z AUTO 00000KT 8SM CLR M03/M07 A2999 RMK AO2 SLP162 T10281067 55001 |
| 17:53 PST |  Clear Hazy | -2°C / 28°F | -6°C / 21°F | 74% | 1015 mb (29.97 in) | Calm | - | 6SM |
| | KRBG 110153Z AUTO 00000KT 6SM HZ CLR M02/M06 A2998 RMK AO2 SLP161 T10171061 |
| 16:53 PST |  Clear | 1°C / 34°F | -6°C / 21°F | 60% | 1016 mb (30 in) | Calm | - | 9SM |
| | KRBG 110053Z AUTO 00000KT 9SM CLR 01/M06 A2999 RMK AO2 SLP163 T00061061 |
| 15:53 PST |  Clear | 3°C / 37°F | -6°C / 21°F | 52% | 1016 mb (30 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KRBG 102353Z AUTO 23003KT 10SM CLR 03/M06 A2999 RMK AO2 SLP163 T00281061 10033 21072 56012 |
| 14:53 PST |  Clear | 3°C / 37°F | -7°C / 19°F | 48% | 1016 mb (30 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KRBG 102253Z AUTO 01003KT 10SM CLR 03/M07 A3000 RMK AO2 SLP165 T00331067 |
| 13:53 PST |  Clear | 2°C / 36°F | -8°C / 18°F | 48% | 1016 mb (30 in) | Calm | - | 10SM |
| | KRBG 102153Z AUTO 00000KT 10SM CLR 02/M08 A3001 RMK AO2 SLP169 T00221078 |
| 12:53 PST |  Clear | 0°C / 32°F | -7°C / 19°F | 60% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRBG 102053Z AUTO 00000KT 10SM CLR 00/M07 A3003 RMK AO2 SLP175 T00001072 58032 |
| 11:53 PST |  Clear | -2°C / 28°F | -7°C / 19°F | 69% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KRBG 101953Z AUTO 00000KT 10SM CLR M02/M07 A3006 RMK AO2 SLP188 T10171072 |
| 10:53 PST |  Clear Hazy | -4°C / 25°F | -7°C / 19°F | 80% | 1019 mb (30.09 in) | Calm | - | 6SM |
| | KRBG 101853Z AUTO 00000KT 6SM HZ CLR M04/M07 A3010 RMK AO2 SLP200 T10391072 |
| 09:53 PST |  Clear Fog And Mist | -7°C / 19°F | -9°C / 16°F | 86% | 1020 mb (30.12 in) | Calm | - | 5SM |
| | KRBG 101753Z AUTO 00000KT 5SM BR CLR M07/M09 A3012 RMK AO2 SLP209 T10721089 11072 21100 50002 |
| 08:53 PST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1020 mb (30.12 in) | Calm | - | 7SM |
| | KRBG 101653Z AUTO 00000KT 7SM CLR M08/M10 A3013 RMK AO2 SLP211 T10831100 |
| 07:53 PST |  Clear Fog And Mist | -10°C / 14°F | -11°C / 12°F | 92% | 1020 mb (30.12 in) | Calm | - | 6SM |
| | KRBG 101553Z AUTO 00000KT 6SM BR CLR M10/M11 A3012 RMK AO2 SLP208 T11001111 |
| 06:53 PST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1020 mb (30.12 in) | Calm | - | 8SM |
| | KRBG 101453Z AUTO 00000KT 8SM CLR M09/M11 A3011 RMK AO2 SLP207 T10941106 58004 |
| 05:53 PST |  Clear Fog And Mist | -9°C / 16°F | -11°C / 12°F | 86% | 1020 mb (30.12 in) | Calm | - | 5SM |
| | KRBG 101353Z AUTO 00000KT 5SM BR CLR M09/M11 A3012 RMK AO2 SLP209 T10941111 |
| 04:53 PST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1020 mb (30.12 in) | Calm | - | 9SM |
| | KRBG 101253Z AUTO 00000KT 9SM CLR M09/M11 A3013 RMK AO2 SLP210 T10941111 |
| 03:53 PST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1020 mb (30.12 in) | Calm | - | 7SM |
| | KRBG 101153Z AUTO 00000KT 7SM CLR M09/M11 A3013 RMK AO2 SLP209 T10891106 11061 21089 50000 |
| 02:53 PST |  Clear Fog And Mist | -9°C / 16°F | -11°C / 12°F | 86% | 1020 mb (30.12 in) | Calm | - | 6SM |
| | KRBG 101053Z AUTO 00000KT 6SM BR CLR M09/M11 A3013 RMK AO2 SLP212 T10891106 |
| 01:53 PST |  Clear Fog And Mist | -8°C / 18°F | -10°C / 14°F | 86% | 1020 mb (30.12 in) | Calm | - | 6SM |
| | KRBG 100953Z AUTO 00000KT 6SM BR CLR M08/M10 A3012 RMK AO2 SLP208 T10831100 |
| 00:53 PST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1020 mb (30.12 in) | Calm | - | 7SM |
| | KRBG 100853Z AUTO 00000KT 7SM CLR M08/M10 A3013 RMK AO2 SLPNO T10781100 58007 |