| 20:53 PST |  Clear | -3°C / 27°F | -9°C / 16°F | 64% | 1020 mb (30.12 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KRDD 100453Z 01004KT 10SM CLR M03/M09 A3012 RMK AO2 SLP205 T10331094 |
| 19:53 PST |  Clear | -2°C / 28°F | -10°C / 14°F | 55% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KRDD 100353Z 00000KT 10SM CLR M02/M10 A3012 RMK AO2 SLP203 T10221100 |
| 18:53 PST |  Clear | -1°C / 30°F | -9°C / 16°F | 55% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRDD 100253Z 00000KT 10SM CLR M01/M09 A3010 RMK AO2 SLP198 T10061094 53006 |
| 17:53 PST |  Clear | 2°C / 36°F | -10°C / 14°F | 41% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRDD 100153Z 00000KT 10SM CLR 02/M10 A3009 RMK AO2 SLP193 T00221100 |
| 16:53 PST |  Clear | 4°C / 39°F | -9°C / 16°F | 39% | 1019 mb (30.09 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KRDD 100053Z 13004KT 10SM CLR 04/M09 A3009 RMK AO2 SLP193 T00391094 |
| 15:53 PST |  Clear | 8°C / 46°F | -11°C / 12°F | 25% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRDD 092353Z 00000KT 10SM CLR 08/M11 A3009 RMK AO2 SLP191 T00781111 10083 20000 55013 |
| 14:53 PST |  Clear | 8°C / 46°F | -11°C / 12°F | 25% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRDD 092253Z 00000KT 10SM CLR 08/M11 A3008 RMK AO2 SLP189 T00831106 |
| 13:53 PST |  Clear | 8°C / 46°F | -10°C / 14°F | 27% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KRDD 092153Z 00000KT 10SM CLR 08/M10 A3010 RMK AO2 SLP195 T00781100 |
| 12:53 PST |  Clear | 7°C / 45°F | -9°C / 16°F | 31% | 1020 mb (30.12 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KRDD 092053Z 36004KT 10SM CLR 07/M09 A3013 RMK AO2 SLP204 T00721089 58030 |
| 11:53 PST |  Clear | 6°C / 43°F | -8°C / 18°F | 36% | 1021 mb (30.15 in) | NNE 6 kph (NNE 3.5 mph) | - | 10SM |
| | KRDD 091953Z 02003KT 10SM CLR 06/M08 A3016 RMK AO2 SLP217 T00561083 |
| 10:53 PST |  Clear | 3°C / 37°F | -8°C / 18°F | 45% | 1023 mb (30.21 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KRDD 091853Z 34004KT 10SM CLR 03/M08 A3020 RMK AO2 SLP230 T00331078 |
| 09:53 PST |  Clear | 0°C / 32°F | -6°C / 21°F | 64% | 1023 mb (30.21 in) | Calm | - | 9SM |
| | KRDD 091753Z 00000KT 9SM CLR 00/M06 A3022 RMK AO2 SLP236 T00001056 10000 21089 50004 |
| 08:53 PST |  Clear | -4°C / 25°F | -8°C / 18°F | 74% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KRDD 091653Z 00000KT 10SM CLR M04/M08 A3022 RMK AO2 SLP238 T10391078 |
| 07:53 PST |  Clear Fog And Mist | -8°C / 18°F | -10°C / 14°F | 86% | 1023 mb (30.21 in) | Calm | - | 5SM |
| | KRDD 091553Z 00000KT 5SM BR CLR M08/M10 A3022 RMK AO2 SLP238 T10781100 |
| 06:53 PST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KRDD 091453Z 00000KT 10SM CLR M08/M10 A3020 RMK AO2 SLP233 T10781100 55003 |
| 05:53 PST |  Clear | -8°C / 18°F | -11°C / 12°F | 79% | 1022 mb (30.18 in) | Calm | - | 8SM |
| | KRDD 091353Z AUTO 00000KT 8SM CLR M08/M11 A3019 RMK AO2 SLP228 T10831106 |
| 04:53 PST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1022 mb (30.18 in) | Calm | - | 7SM |
| | KRDD 091253Z AUTO 00000KT 7SM CLR M07/M10 A3019 RMK AO2 SLP228 T10721100 |
| 03:53 PST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1023 mb (30.21 in) | NW 9 kph (NW 5.8 mph) | - | 7SM |
| | KRDD 091153Z AUTO 30005KT 7SM CLR M07/M09 A3021 RMK AO2 SLP234 T10721094 11022 21083 50001 |
| 02:53 PST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1024 mb (30.24 in) | NE 6 kph (NE 3.5 mph) | - | 8SM |
| | KRDD 091053Z AUTO 03003KT 8SM CLR M07/M09 A3023 RMK AO2 SLP239 T10721094 |
| 01:53 PST |  Clear | -8°C / 18°F | -10°C / 14°F | 86% | 1023 mb (30.21 in) | Calm | - | 8SM |
| | KRDD 090953Z AUTO 00000KT 8SM CLR M08/M10 A3022 RMK AO2 SLP238 T10781100 |
| 00:53 PST |  Clear | -6°C / 21°F | -9°C / 16°F | 80% | 1023 mb (30.21 in) | Calm | - | 9SM |
| | KRDD 090853Z AUTO 00000KT 9SM CLR M06/M09 A3021 RMK AO2 SLP232 T10561089 53002 |