| 07:53 PST |  Clear | -16°C / 3°F | -19°C / -2°F | 78% | 1008 mb (29.77 in) | SSE 15 kph (SSE 9.2 mph) | - | 10SM |
| | KTVL 081553Z AUTO 20008KT 10SM CLR M16/M19 A2977 RMK AO2 SLP153 T11611189 TSNO |
| 06:53 PST |  Clear | -17°C / 1°F | -21°C / -6°F | 71% | 1008 mb (29.77 in) | S 13 kph (S 8.1 mph) | - | 10SM |
| | KTVL 081453Z AUTO 18007KT 10SM CLR M17/M21 A2977 RMK AO2 SLP153 T11721206 51027 TSNO |
| 05:53 PST |  Clear | -22°C / -8°F | -25°C / -13°F | 77% | 1007 mb (29.74 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KTVL 081353Z AUTO 19005KT 10SM CLR M22/M25 A2975 RMK AO2 SLP155 T12171250 TSNO |
| 04:53 PST |  Clear | -21°C / -6°F | -23°C / -9°F | 84% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KTVL 081253Z AUTO 00000KT 10SM CLR M21/M23 A2971 RMK AO2 SLP133 T12061233 TSNO |
| 03:53 PST |  Clear | -23°C / -9°F | -26°C / -15°F | 77% | 1005 mb (29.68 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KTVL 081153Z AUTO 18005KT 10SM CLR M23/M26 A2968 RMK AO2 SLP130 60000 70056 T12281256 11089 21228 51021 TSNO |
| 02:53 PST |  Clear | -19°C / -2°F | -22°C / -8°F | 77% | 1004 mb (29.65 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KTVL 081053Z AUTO 19005KT 10SM CLR M19/M22 A2966 RMK AO2 SLP108 T11941222 TSNO |
| 01:53 PST |  Clear | -19°C / -2°F | -21°C / -6°F | 84% | 1003 mb (29.62 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KTVL 080953Z AUTO 21004KT 10SM CLR M19/M21 A2963 RMK AO2 SLP094 T11891206 TSNO |
| 01:00 PST |  Partly Cloudy | -14°C / 7°F | -16°C / 3°F | 85% | 1002 mb (29.59 in) | Calm | - | 10SM |
| | KTVL 080900Z AUTO 00000KT 10SM SCT027 M14/M16 A2960 RMK AO2 TSNO |
| 00:53 PST |  Mostly Cloudy | -14°C / 7°F | -16°C / 3°F | 85% | 1002 mb (29.59 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KTVL 080853Z AUTO 19004KT 10SM BKN027 M14/M16 A2960 RMK AO2 SLP069 60000 T11391161 53008 TSNO |
| 00:12 PST |  Overcast | -12°C / 10°F | -15°C / 5°F | 79% | 1002 mb (29.59 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KTVL 080812Z AUTO 18003KT 10SM OVC029 M12/M15 A2960 RMK AO2 TSNO |