| 08:56 PST |  Clear | 3°C / 37°F | -7°C / 19°F | 48% | 1014 mb (29.94 in) | NE 15 kph (NE 9.2 mph) | - | 10SM |
| | KWMC 271656Z AUTO 05008KT 10SM CLR 03/M07 A2993 RMK AO2 SLP144 T00281067 |
| 07:56 PST |  Clear | 1°C / 34°F | -7°C / 19°F | 56% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KWMC 271556Z AUTO 00000KT 10SM CLR 01/M07 A2993 RMK AO2 SLP151 T00061067 |
| 06:56 PST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1013 mb (29.91 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KWMC 271456Z AUTO 08004KT 10SM CLR M01/M07 A2992 RMK AO2 SLP145 T10111072 56013 |
| 05:56 PST |  Clear | 0°C / 32°F | -7°C / 19°F | 60% | 1014 mb (29.94 in) | NE 9 kph (NE 5.8 mph) | - | 10SM |
| | KWMC 271356Z AUTO 05005KT 10SM CLR 00/M07 A2993 RMK AO2 SLP147 T00001067 |
| 04:56 PST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KWMC 271256Z AUTO 00000KT 10SM CLR M01/M07 A2994 RMK AO2 SLP144 T10061072 |
| 03:56 PST |  Clear | 1°C / 34°F | -7°C / 19°F | 56% | 1015 mb (29.97 in) | Variable 6 kph (Variable 3.5 mph) | - | 10SM |
| | KWMC 271156Z AUTO VRB03KT 10SM CLR 01/M07 A2996 RMK AO2 SLP143 70001 T00111067 10017 21028 58013 |
| 02:56 PST |  Clear | 1°C / 34°F | -7°C / 19°F | 56% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KWMC 271056Z AUTO 00000KT 10SM CLR 01/M07 A2998 RMK AO2 SLP145 T00061072 |
| 01:56 PST |  Clear | -2°C / 28°F | -9°C / 16°F | 59% | 1016 mb (30 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KWMC 270956Z AUTO 30003KT 10SM CLR M02/M09 A3001 RMK AO2 SLP158 T10171089 |
| 00:56 PST |  Clear | -2°C / 28°F | -9°C / 16°F | 59% | 1016 mb (30 in) | Calm | - | 10SM |
| | KWMC 270856Z AUTO 00000KT 10SM CLR M02/M09 A3001 RMK AO2 SLP161 T10171094 58013 |