| 21:56 PST |  Clear | -12°C / 10°F | -18°C / 0°F | 61% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KEKO 040556Z AUTO 00000KT 10SM CLR M12/M18 A3026 RMK AO2 SLP306 T11171178 11006 21117 51004 |
| 20:56 PST |  Clear | -11°C / 12°F | -19°C / -2°F | 52% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEKO 040456Z AUTO 00000KT 10SM CLR M11/M19 A3025 RMK AO2 SLP313 T11111194 |
| 19:56 PST |  Clear | -10°C / 14°F | -19°C / -2°F | 48% | 1025 mb (30.27 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KEKO 040356Z AUTO 33003KT 10SM CLR M10/M19 A3026 RMK AO2 SLP319 T11001194 |
| 18:56 PST |  Clear | -7°C / 19°F | -18°C / 0°F | 42% | 1024 mb (30.24 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KEKO 040256Z AUTO 35003KT 10SM CLR M07/M18 A3025 RMK AO2 SLP316 T10721178 53011 |
| 17:56 PST |  Clear | -7°C / 19°F | -18°C / 0°F | 42% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEKO 040156Z AUTO 00000KT 10SM CLR M07/M18 A3024 RMK AO2 SLP304 T10671178 |
| 16:56 PST |  Clear | -6°C / 21°F | -17°C / 1°F | 42% | 1023 mb (30.21 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KEKO 040056Z AUTO 25003KT 10SM CLR M06/M17 A3022 RMK AO2 SLP297 T10561172 |
| 15:56 PST |  Clear | -1°C / 30°F | -16°C / 3°F | 31% | 1023 mb (30.21 in) | SSW 11 kph (SSW 6.9 mph) | - | 10SM |
| | KEKO 032356Z AUTO 25006KT 10SM CLR M01/M16 A3021 RMK AO2 SLP281 T10061161 10011 21067 53005 |
| 14:56 PST |  Clear | 1°C / 34°F | -16°C / 3°F | 27% | 1023 mb (30.21 in) | SSW 13 kph (SSW 8.1 mph) | - | 10SM |
| | KEKO 032256Z AUTO 25007KT 10SM CLR 01/M16 A3021 RMK AO2 SLP271 T00111161 |
| 13:56 PST |  Clear | 1°C / 34°F | -16°C / 3°F | 27% | 1023 mb (30.21 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KEKO 032156Z AUTO 20008KT 10SM CLR 01/M16 A3020 RMK AO2 SLP267 T00111161 |
| 12:56 PST |  Clear | 1°C / 34°F | -15°C / 5°F | 29% | 1023 mb (30.21 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KEKO 032056Z AUTO 20006KT 10SM CLR 01/M15 A3020 RMK AO2 SLP270 T00061150 58018 |
| 11:56 PST |  Clear | -2°C / 28°F | -13°C / 9°F | 43% | 1023 mb (30.21 in) | SSW 7 kph (SSW 4.6 mph) | - | 10SM |
| | KEKO 031956Z AUTO 26004KT 10SM CLR M02/M13 A3022 RMK AO2 SLP280 T10171128 |
| 10:56 PST |  Clear | -4°C / 25°F | -13°C / 9°F | 50% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEKO 031856Z AUTO 00000KT 10SM CLR M04/M13 A3024 RMK AO2 SLP284 T10391128 |
| 09:56 PST |  Clear | -7°C / 19°F | -12°C / 10°F | 68% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KEKO 031756Z AUTO 00000KT 10SM CLR M07/M12 A3026 RMK AO2 SLP299 T10671122 11067 21178 51013 |
| 08:56 PST |  Clear | -11°C / 12°F | -14°C / 7°F | 79% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEKO 031656Z AUTO 00000KT 10SM CLR M11/M14 A3025 RMK AO2 SLP302 T11111144 |
| 07:56 PST |  Clear | -15°C / 5°F | -18°C / 0°F | 78% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KEKO 031556Z AUTO 00000KT 10SM CLR M15/M18 A3023 RMK AO2 SLP301 T11501178 |
| 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 |