| 16:56 PST |  Clear | -11°C / 12°F | -14°C / 7°F | 79% | 1025 mb (30.27 in) | WNW 9 kph (WNW 5.8 mph) | - | 10SM |
| | KEKO 250056Z AUTO 29005KT 10SM CLR M11/M14 A3028 RMK AO2 SLP345 T11111144 |
| 15:56 PST |  Clear | -9°C / 16°F | -13°C / 9°F | 73% | 1026 mb (30.3 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KEKO 242356Z AUTO 26005KT 10SM CLR M09/M13 A3029 RMK AO2 SLP340 T10891133 11061 21133 56005 |
| 14:56 PST |  Clear | -6°C / 21°F | -12°C / 10°F | 63% | 1026 mb (30.3 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KEKO 242256Z AUTO 22006KT 10SM CLR M06/M12 A3030 RMK AO2 SLP331 T10611117 |
| 13:56 PST |  Clear | -6°C / 21°F | -12°C / 10°F | 63% | 1026 mb (30.3 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KEKO 242156Z AUTO 20004KT 10SM CLR M06/M12 A3030 RMK AO2 SLP332 T10611122 |
| 12:56 PST |  Clear | -8°C / 18°F | -13°C / 9°F | 68% | 1026 mb (30.3 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KEKO 242056Z AUTO 21005KT 10SM CLR M08/M13 A3031 RMK AO2 SLP338 T10781133 56016 |
| 11:56 PST |  Clear | -9°C / 16°F | -14°C / 7°F | 67% | 1027 mb (30.33 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KEKO 241956Z AUTO 23004KT 10SM CLR M09/M14 A3032 RMK AO2 SLP339 T10941139 |
| 10:56 PST |  Clear | -12°C / 10°F | -15°C / 5°F | 79% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KEKO 241856Z AUTO 00000KT 10SM CLR M12/M15 A3035 RMK AO2 SLP350 T11171150 |
| 09:56 PST |  Clear | -13°C / 9°F | -15°C / 5°F | 85% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KEKO 241756Z AUTO 00000KT 10SM CLR M13/M15 A3037 RMK AO2 SLP360 T11331150 11133 21206 51005 |
| 09:14 PST |  Partly Cloudy | -16°C / 3°F | -17°C / 1°F | 92% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KEKO 241714Z AUTO 00000KT 10SM FEW002 M16/M17 A3036 RMK AO2 |
| 08:56 PST |  Clear | -16°C / 3°F | -18°C / 0°F | 85% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KEKO 241656Z AUTO 00000KT 10SM CLR M16/M18 A3037 RMK AO2 SLP367 T11611183 |
| 07:56 PST |  Clear | -19°C / -2°F | -22°C / -8°F | 77% | 1028 mb (30.36 in) | ENE 7 kph (ENE 4.6 mph) | - | 10SM |
| | KEKO 241556Z AUTO 07004KT 10SM CLR M19/M22 A3036 RMK AO2 SLP371 T11941217 |
| 06:56 PST |  Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1028 mb (30.36 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KEKO 241456Z AUTO 08004KT 10SM CLR M20/M23 A3035 RMK AO2 SLP363 T12001228 51008 |
| 05:56 PST |  Clear | -19°C / -2°F | -22°C / -8°F | 77% | 1027 mb (30.33 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KEKO 241356Z AUTO 07005KT 10SM CLR M19/M22 A3034 RMK AO2 SLP359 T11941217 |
| 04:56 PST |  Clear | -20°C / -4°F | -22°C / -8°F | 84% | 1027 mb (30.33 in) | ENE 11 kph (ENE 6.9 mph) | - | 10SM |
| | KEKO 241256Z AUTO 06006KT 10SM CLR M20/M22 A3033 RMK AO2 SLP354 T12001222 |
| 03:56 PST |  Clear | -19°C / -2°F | -22°C / -8°F | 77% | 1027 mb (30.33 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KEKO 241156Z AUTO 09005KT 10SM CLR M19/M22 A3032 RMK AO2 SLP343 T11941217 11117 21194 50002 |
| 02:56 PST |  Clear | -18°C / 0°F | -20°C / -4°F | 84% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KEKO 241056Z AUTO 00000KT 10SM CLR M18/M20 A3032 RMK AO2 SLP338 T11781200 |
| 01:56 PST |  Clear | -18°C / 0°F | -20°C / -4°F | 84% | 1027 mb (30.33 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KEKO 240956Z AUTO 08004KT 10SM CLR M18/M20 A3033 RMK AO2 SLP339 T11781200 |
| 00:56 PST |  Clear | -17°C / 1°F | -19°C / -2°F | 85% | 1027 mb (30.33 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KEKO 240856Z AUTO 08004KT 10SM CLR M17/M19 A3032 RMK AO2 SLP333 T11671189 51007 |