| 02:55 PST |  Clear | 7°C / 45°F | 7°C / 45°F | 100% | 1012 mb (29.88 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KMER 281055Z AUTO 32010KT 10SM CLR 07/07 A2987 RMK AO1 |
| 02:35 PST |  Clear | 8°C / 46°F | 7°C / 45°F | 93% | 1012 mb (29.88 in) | NNW 20 kph (NNW 12.7 mph) | - | 10SM |
| | KMER 281035Z AUTO 33011KT 10SM CLR 08/07 A2988 RMK AO1 |
| 02:15 PST |  Clear | 8°C / 46°F | 8°C / 46°F | 100% | 1012 mb (29.88 in) | NW 24 kph (NW 15 mph) | - | 10SM |
| | KMER 281015Z AUTO 32013KT 10SM CLR 08/08 A2988 RMK AO1 |
| 01:55 PST |  Clear | 8°C / 46°F | 8°C / 46°F | 100% | 1012 mb (29.88 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KMER 280955Z AUTO 32010KT 10SM CLR 08/08 A2989 RMK AO1 |
| 01:35 PST |  Clear | 8°C / 46°F | 8°C / 46°F | 100% | 1012 mb (29.88 in) | NNW 17 kph (NNW 10.4 mph) | - | 10SM |
| | KMER 280935Z AUTO 33009KT 10SM CLR 08/08 A2989 RMK AO1 |
| 01:15 PST |  Partly Cloudy | 9°C / 48°F | 9°C / 48°F | 100% | 1012 mb (29.88 in) | NNW 17 kph (NNW 10.4 mph) | - | 10SM |
| | KMER 280915Z AUTO 33009KT 10SM FEW032 FEW120 09/09 A2989 RMK AO1 |
| 00:55 PST |  Partly Cloudy | 9°C / 48°F | 9°C / 48°F | 100% | 1013 mb (29.91 in) | NW 15 kph (NW 9.2 mph) | - | 9SM |
| | KMER 280855Z AUTO 32008KT 9SM FEW016 SCT032 09/09 A2991 RMK AO1 |
| 00:35 PST |  Clear | 9°C / 48°F | 9°C / 48°F | 100% | 1013 mb (29.91 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KMER 280835Z AUTO 35005KT 10SM CLR 09/09 A2991 RMK AO1 |
| 00:15 PST |  Partly Cloudy | 9°C / 48°F | 9°C / 48°F | 100% | 1013 mb (29.91 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KMER 280815Z AUTO 33006KT 10SM SCT085 09/09 A2991 RMK AO1 |