| 09:53 PST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1031 mb (30.45 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KEPH 251753Z AUTO 35008KT 10SM OVC029 M03/M08 A3045 RMK AO2 SLP329 T10281078 11028 21072 51009 |
| 08:53 PST |  Overcast | -4°C / 25°F | -8°C / 18°F | 74% | 1031 mb (30.45 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KEPH 251653Z AUTO 36005KT 10SM OVC029 M04/M08 A3045 RMK AO2 SLP330 T10441083 |
| 08:05 PST |  Mostly Cloudy | -7°C / 19°F | -9°C / 16°F | 86% | 1031 mb (30.45 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KEPH 251605Z AUTO 01005KT 10SM BKN029 M07/M09 A3044 RMK AO2 |
| 07:53 PST |  Partly Cloudy | -6°C / 21°F | -9°C / 16°F | 80% | 1031 mb (30.45 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KEPH 251553Z AUTO 35004KT 10SM FEW029 M06/M09 A3044 RMK AO2 SLP326 T10611094 |
| 06:53 PST |  Partly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KEPH 251453Z AUTO 32007KT 10SM SCT028 M06/M10 A3042 RMK AO2 SLP320 T10611100 56003 |
| 06:24 PST |  Mostly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KEPH 251424Z AUTO 32007KT 10SM BKN028 M06/M10 A3043 RMK AO2 |
| 05:53 PST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1030 mb (30.42 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KEPH 251353Z AUTO 34004KT 10SM CLR M07/M10 A3042 RMK AO2 SLP323 T10671100 |
| 04:53 PST |  Clear | -7°C / 19°F | -10°C / 14°F | 79% | 1030 mb (30.42 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KEPH 251253Z AUTO 35004KT 10SM CLR M07/M10 A3042 RMK AO2 SLP320 T10721100 |
| 04:17 PST |  Partly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KEPH 251217Z AUTO 32007KT 10SM SCT026 M06/M10 A3042 RMK AO2 |
| 03:53 PST |  Overcast | -6°C / 21°F | -9°C / 16°F | 80% | 1030 mb (30.42 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KEPH 251153Z AUTO 32008KT 10SM OVC026 M06/M09 A3043 RMK AO2 SLP322 T10561094 11056 21067 51005 |
| 03:00 PST |  Mostly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KEPH 251100Z AUTO 33006KT 10SM BKN026 M06/M10 A3043 RMK AO2 |
| 02:53 PST |  Partly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KEPH 251053Z AUTO 32008KT 10SM SCT026 M06/M10 A3043 RMK AO2 SLP322 T10611100 |
| 02:35 PST |  Partly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KEPH 251035Z AUTO 31009KT 10SM SCT026 M06/M10 A3043 RMK AO2 |
| 01:53 PST |  Mostly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KEPH 250953Z AUTO 31009KT 10SM BKN026 M06/M10 A3042 RMK AO2 SLP319 T10611100 |
| 01:13 PST |  Mostly Cloudy | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KEPH 250913Z AUTO 33007KT 10SM BKN028 M06/M10 A3042 RMK AO2 |
| 00:53 PST |  Clear | -6°C / 21°F | -10°C / 14°F | 74% | 1030 mb (30.42 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KEPH 250853Z AUTO 31009KT 10SM CLR M06/M10 A3041 RMK AO2 SLP317 T10611100 58002 |