| 21:56 PST |  Clear | -9°C / 16°F | -13°C / 9°F | 73% | 1018 mb (30.06 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KEKO 030556Z AUTO 09004KT 10SM CLR M09/M13 A3007 RMK AO2 SLP227 T10941128 10017 21100 53010 |
| 20:56 PST |  Clear | -7°C / 19°F | -12°C / 10°F | 68% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KEKO 030456Z AUTO 00000KT 10SM CLR M07/M12 A3005 RMK AO2 SLP220 T10671122 |
| 19:56 PST |  Clear | -5°C / 23°F | -11°C / 12°F | 63% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KEKO 030356Z AUTO 00000KT 10SM CLR M05/M11 A3004 RMK AO2 SLP219 T10501111 |
| 18:56 PST |  Clear | -5°C / 23°F | -11°C / 12°F | 63% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KEKO 030256Z AUTO 00000KT 10SM CLR M05/M11 A3003 RMK AO2 SLP222 T10501106 53008 |
| 17:56 PST |  Clear | -4°C / 25°F | -10°C / 14°F | 63% | 1016 mb (30 in) | Calm | - | 10SM |
| | KEKO 030156Z AUTO 00000KT 10SM CLR M04/M10 A3001 RMK AO2 SLP212 T10391100 |
| 16:56 PST |  Clear | -2°C / 28°F | -9°C / 16°F | 59% | 1016 mb (30 in) | Calm | - | 10SM |
| | KEKO 030056Z AUTO 00000KT 10SM CLR M02/M09 A3000 RMK AO2 SLP203 T10221094 |
| 15:56 PST |  Clear | 2°C / 36°F | -8°C / 18°F | 48% | 1016 mb (30 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KEKO 022356Z AUTO 22006KT 10SM CLR 02/M08 A3001 RMK AO2 SLP196 T00171078 10039 21044 56007 |
| 14:56 PST |  Clear | 3°C / 37°F | -8°C / 18°F | 45% | 1016 mb (30 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KEKO 022256Z AUTO 19005KT 10SM CLR 03/M08 A3001 RMK AO2 SLP195 T00331078 |
| 13:56 PST |  Clear | 3°C / 37°F | -7°C / 19°F | 48% | 1017 mb (30.03 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KEKO 022156Z AUTO 17006KT 10SM CLR 03/M07 A3002 RMK AO2 SLP194 T00331072 |
| 12:56 PST |  Clear | 2°C / 36°F | -7°C / 19°F | 52% | 1017 mb (30.03 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KEKO 022056Z AUTO 24005KT 10SM CLR 02/M07 A3003 RMK AO2 SLP195 T00221067 56020 |
| 11:56 PST |  Clear | 2°C / 36°F | -7°C / 19°F | 52% | 1018 mb (30.06 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KEKO 021956Z AUTO 22006KT 10SM CLR 02/M07 A3005 RMK AO2 SLP201 T00171067 |
| 11:15 PST |  Partly Cloudy | 0°C / 32°F | -7°C / 19°F | 60% | 1018 mb (30.06 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KEKO 021915Z AUTO 22006KT 10SM SCT029 00/M07 A3007 RMK AO2 |
| 10:56 PST |  Overcast | -1°C / 30°F | -7°C / 19°F | 64% | 1019 mb (30.09 in) | Variable 6 kph (Variable 3.5 mph) | - | 10SM |
| | KEKO 021856Z AUTO VRB03KT 10SM OVC029 M01/M07 A3008 RMK AO2 SLP218 T10111067 |
| 09:56 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KEKO 021756Z AUTO 00000KT 10SM OVC027 M04/M08 A3010 RMK AO2 SLP229 T10441078 11044 21133 53003 |
| 08:56 PST |  Overcast | -7°C / 19°F | -10°C / 14°F | 79% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KEKO 021656Z AUTO 00000KT 10SM OVC027 M07/M10 A3009 RMK AO2 SLP232 T10721100 |
| 07:56 PST |  Overcast | -10°C / 14°F | -12°C / 10°F | 85% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KEKO 021556Z AUTO 00000KT 10SM OVC029 M10/M12 A3008 RMK AO2 SLP228 T11001117 |
| 07:40 PST |  Overcast | -11°C / 12°F | -13°C / 9°F | 85% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KEKO 021540Z AUTO 00000KT 10SM OVC029 M11/M13 A3008 RMK AO2 |
| 06:56 PST |  Mostly Cloudy | -12°C / 10°F | -14°C / 7°F | 85% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KEKO 021456Z AUTO 00000KT 10SM BKN033 M12/M14 A3009 RMK AO2 SLP232 T11221139 53009 |
| 05:56 PST |  Clear | -12°C / 10°F | -13°C / 9°F | 92% | 1019 mb (30.09 in) | ENE 7 kph (ENE 4.6 mph) | - | 10SM |
| | KEKO 021356Z AUTO 07004KT 10SM CLR M12/M13 A3008 RMK AO2 SLP226 T11171133 |
| 04:56 PST |  Clear | -12°C / 10°F | -14°C / 7°F | 85% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KEKO 021256Z AUTO 00000KT 10SM CLR M12/M14 A3006 RMK AO2 SLP216 T11171144 |
| 03:56 PST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KEKO 021156Z AUTO 00000KT 10SM CLR M11/M13 A3006 RMK AO2 SLP203 T11061128 11044 21117 51007 |
| 02:56 PST |  Clear | -11°C / 12°F | -13°C / 9°F | 85% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KEKO 021056Z AUTO 00000KT 10SM CLR M11/M13 A3005 RMK AO2 SLP199 T11111128 |
| 01:56 PST |  Clear | -9°C / 16°F | -11°C / 12°F | 86% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KEKO 020956Z AUTO 00000KT 10SM CLR M09/M11 A3004 RMK AO2 SLP192 T10891111 |
| 00:56 PST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1017 mb (30.03 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KEKO 020856Z AUTO 35005KT 10SM CLR M07/M10 A3003 RMK AO2 SLP186 T10721100 58001 |