| 11:55 PST |  Clear | 25°C / 77°F | -10°C / 14°F | 9% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KRIV 271955Z AUTO 00000KT 10SM CLR 25/M10 A2997 RMK AO2 SLP152 T02481096 |
| 10:55 PST |  Partly Cloudy | 22°C / 72°F | -10°C / 14°F | 11% | 1016 mb (30 in) | SE 9 kph (SE 5.8 mph) | - | 10SM |
| | KRIV 271855Z AUTO 13005KT 10SM FEW180 22/M10 A3001 RMK AO2 SLP166 T02201096 |
| 09:55 PST |  Clear | 19°C / 66°F | -10°C / 14°F | 13% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRIV 271755Z AUTO 00000KT 10SM CLR 19/M10 A3004 RMK AO2 SLP177 T01921097 10192 21007 50004 |
| 08:55 PST |  Clear | 15°C / 59°F | -8°C / 18°F | 20% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KRIV 271655Z AUTO 00000KT 10SM CLR 15/M08 A3005 RMK AO2 SLP179 T01531078 |
| 07:55 PST |  Clear | 10°C / 50°F | -8°C / 18°F | 28% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRIV 271555Z AUTO 00000KT 10SM CLR 10/M08 A3004 RMK AO2 SLP177 T01021083 |
| 06:55 PST |  Clear | 0°C / 32°F | -12°C / 10°F | 40% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRIV 271455Z AUTO 00000KT 10SM CLR M00/M12 A3003 RMK AO2 SLP182 T10021122 53005 |
| 05:55 PST |  Clear | 0°C / 32°F | -13°C / 9°F | 37% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRIV 271355Z AUTO 00000KT 10SM CLR M00/M13 A3003 RMK AO2 SLP176 T10051134 |
| 04:55 PST |  Clear | -1°C / 30°F | -14°C / 7°F | 37% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRIV 271255Z AUTO 00000KT 10SM CLR M01/M14 A3002 RMK AO2 SLP171 T10051138 |
| 03:55 PST |  Clear | 0°C / 32°F | -14°C / 7°F | 34% | 1016 mb (30 in) | Calm | - | 10SM |
| | KRIV 271155Z AUTO 00000KT 10SM CLR M00/M14 A3001 RMK AO2 SLP167 T10021135 10075 21002 57007 |
| 02:55 PST |  Clear | 0°C / 32°F | -13°C / 9°F | 37% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRIV 271055Z AUTO 00000KT 10SM CLR 00/M13 A3002 RMK AO2 SLP169 T00021127 |
| 01:55 PST |  Clear | 1°C / 34°F | -13°C / 9°F | 35% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRIV 270955Z AUTO 00000KT 10SM CLR 01/M13 A3003 RMK AO2 SLP171 T00141128 |
| 00:55 PST |  Clear | 2°C / 36°F | -13°C / 9°F | 32% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KRIV 270855Z AUTO 00000KT 10SM CLR 02/M13 A3004 RMK AO2 SLP172 T00231127 58005 |