| 06:56 PST |  Clear | -17°C / 1°F | -19°C / -2°F | 85% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KEKO 031456Z AUTO 00000KT 10SM CLR M17/M19 A3021 RMK AO2 SLP298 T11721194 53018 |
| 05:56 PST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1022 mb (30.18 in) | ENE 7 kph (ENE 4.6 mph) | - | 10SM |
| | KEKO 031356Z AUTO 06004KT 10SM CLR M14/M17 A3019 RMK AO2 SLP281 T11441172 |
| 04:56 PST |  Clear | -16°C / 3°F | -18°C / 0°F | 85% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KEKO 031256Z AUTO 00000KT 10SM CLR M16/M18 A3016 RMK AO2 SLP272 T11611183 |
| 03:56 PST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1021 mb (30.15 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KEKO 031156Z AUTO 09003KT 10SM CLR M14/M17 A3015 RMK AO2 SLP253 T11441167 11089 21150 51015 |
| 02:56 PST |  Clear | -12°C / 10°F | -16°C / 3°F | 72% | 1020 mb (30.12 in) | NE 7 kph (NE 4.6 mph) | - | 10SM |
| | KEKO 031056Z AUTO 05004KT 10SM CLR M12/M16 A3013 RMK AO2 SLP240 T11221161 |
| 01:56 PST |  Clear | -12°C / 10°F | -15°C / 5°F | 79% | 1020 mb (30.12 in) | ENE 11 kph (ENE 6.9 mph) | - | 10SM |
| | KEKO 030956Z AUTO 07006KT 10SM CLR M12/M15 A3013 RMK AO2 SLP239 T11221150 |
| 00:56 PST |  Clear | -13°C / 9°F | -16°C / 3°F | 78% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KEKO 030856Z AUTO 00000KT 10SM CLR M13/M16 A3009 RMK AO2 SLP232 T11331156 51008 |