| 02:50 PST |  Overcast | -5°C / 23°F | -20°C / -4°F | 30% | 1026 mb (30.3 in) | NE 33 kph (NE 20.7 mph) | - | 10SM |
| | KSZT 061050Z AUTO 03018G29KT 10SM OVC110 M05/M20 A3029 RMK AO2 |
| 02:30 PST |  Overcast | -5°C / 23°F | -20°C / -4°F | 30% | 1025 mb (30.27 in) | NE 46 kph (NE 28.8 mph) | - | 10SM |
| | KSZT 061030Z AUTO 03025G31KT 10SM OVC110 M05/M20 A3028 RMK AO2 |
| 02:10 PST |  Overcast | -5°C / 23°F | -19°C / -2°F | 33% | 1026 mb (30.3 in) | NE 39 kph (NE 24.2 mph) | - | 10SM |
| | KSZT 061010Z AUTO 04021G31KT 10SM OVC120 M05/M19 A3029 RMK AO2 |
| 01:50 PST |  Overcast | -4°C / 25°F | -18°C / 0°F | 33% | 1026 mb (30.3 in) | NE 37 kph (NE 23 mph) | - | 10SM |
| | KSZT 060950Z AUTO 04020G27KT 10SM OVC110 M04/M18 A3029 RMK AO2 |
| 01:30 PST |  Overcast | -4°C / 25°F | -18°C / 0°F | 33% | 1026 mb (30.3 in) | NE 32 kph (NE 19.6 mph) | - | 10SM |
| | KSZT 060930Z AUTO 05017G29KT 10SM OVC110 M04/M18 A3029 RMK AO2 |
| 01:10 PST |  Overcast | -4°C / 25°F | -17°C / 1°F | 36% | 1025 mb (30.27 in) | NE 37 kph (NE 23 mph) | - | 10SM |
| | KSZT 060910Z AUTO 05020G27KT 10SM OVC120 M04/M17 A3028 RMK AO2 |
| 00:50 PST |  Overcast | -3°C / 27°F | -17°C / 1°F | 33% | 1025 mb (30.27 in) | NE 33 kph (NE 20.7 mph) | - | 10SM |
| | KSZT 060850Z AUTO 05018G24KT 10SM OVC120 M03/M17 A3027 RMK AO2 |
| 00:30 PST |  Mostly Cloudy | -3°C / 27°F | -17°C / 1°F | 33% | 1025 mb (30.27 in) | NE 30 kph (NE 18.4 mph) | - | 10SM |
| | KSZT 060830Z AUTO 05016G25KT 10SM SCT050 SCT065 BKN120 M03/M17 A3027 RMK AO2 |
| 00:10 PST |  Mostly Cloudy | -3°C / 27°F | -16°C / 3°F | 36% | 1025 mb (30.27 in) | NE 30 kph (NE 18.4 mph) | - | 10SM |
| | KSZT 060810Z AUTO 05016G22KT 10SM BKN055 BKN065 BKN120 M03/M16 A3027 RMK AO2 |