| 16:51 PST |  Mostly Cloudy | 8°C / 46°F | 2°C / 36°F | 66% | 1025 mb (30.27 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KONP 050051Z AUTO 36009KT 10SM SCT032 SCT038 BKN050 08/02 A3026 RMK AO1 |
| 16:31 PST |  Mostly Cloudy | 8°C / 46°F | 2°C / 36°F | 66% | 1025 mb (30.27 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KONP 050031Z AUTO 36009G18KT 10SM SCT033 SCT039 BKN046 08/02 A3027 RMK AO1 |
| 16:11 PST |  Mostly Cloudy | 8°C / 46°F | 2°C / 36°F | 66% | 1025 mb (30.27 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KONP 050011Z AUTO 35011G14KT 10SM SCT031 BKN039 08/02 A3026 RMK AO1 |
| 15:51 PST |  Partly Cloudy | 8°C / 46°F | 2°C / 36°F | 66% | 1025 mb (30.27 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KONP 042351Z AUTO 35011G16KT 10SM SCT033 08/02 A3026 RMK AO1 |
| 15:31 PST |  Partly Cloudy | 9°C / 48°F | 3°C / 37°F | 66% | 1024 mb (30.24 in) | N 20 kph (N 12.7 mph) | - | 10SM |
| | KONP 042331Z AUTO 35011G15KT 10SM SCT031 SCT038 09/03 A3025 RMK AO1 |
| 15:11 PST |  Partly Cloudy | 9°C / 48°F | 3°C / 37°F | 66% | 1024 mb (30.24 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KONP 042311Z AUTO 36007KT 10SM SCT038 09/03 A3025 RMK AO1 |
| 14:51 PST |  Partly Cloudy | 9°C / 48°F | 3°C / 37°F | 66% | 1024 mb (30.24 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KONP 042251Z AUTO 35009KT 10SM SCT026 SCT036 09/03 A3025 RMK AO1 |
| 14:31 PST |  Mostly Cloudy | 10°C / 50°F | 4°C / 39°F | 67% | 1024 mb (30.24 in) | N 15 kph (N 9.2 mph) | - | 10SM |
| | KONP 042231Z AUTO 36008KT 10SM SCT026 BKN036 10/04 A3025 RMK AO1 |
| 14:11 PST |  Partly Cloudy | 10°C / 50°F | 3°C / 37°F | 62% | 1024 mb (30.24 in) | N 17 kph (N 10.4 mph) | - | 10SM |
| | KONP 042211Z AUTO 35009G17KT 10SM SCT036 10/03 A3025 RMK AO1 |
| 13:51 PST |  Mostly Cloudy | 10°C / 50°F | 4°C / 39°F | 67% | 1025 mb (30.27 in) | NNW 19 kph (NNW 11.5 mph) | - | 10SM |
| | KONP 042151Z AUTO 34010G15KT 10SM SCT021 SCT027 BKN034 10/04 A3026 RMK AO1 |
| 13:31 PST |  Overcast | 9°C / 48°F | 5°C / 41°F | 76% | 1025 mb (30.27 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KONP 042131Z AUTO 36007KT 10SM SCT021 SCT026 OVC032 09/05 A3027 RMK AO1 |
| 13:12 PST |  Overcast | 9°C / 48°F | 5°C / 41°F | 76% | 1025 mb (30.27 in) | NNW 11 kph (NNW 6.9 mph) | - | 10SM |
| | KONP 042112Z AUTO 33006KT 10SM SCT023 OVC032 09/05 A3027 RMK AO1 |
| 12:52 PST |  Overcast | 9°C / 48°F | 4°C / 39°F | 71% | 1025 mb (30.27 in) | WNW 7 kph (WNW 4.6 mph) | - | 10SM |
| | KONP 042052Z AUTO 29004KT 10SM SCT023 OVC028 09/04 A3027 RMK AO1 |
| 12:31 PST |  Mostly Cloudy | 9°C / 48°F | 4°C / 39°F | 71% | 1025 mb (30.27 in) | NW 6 kph (NW 3.5 mph) | - | 7SM |
| | KONP 042031Z AUTO 30003KT 7SM BKN030 09/04 A3027 RMK AO1 |
| 12:11 PST |  Overcast | 10°C / 50°F | 4°C / 39°F | 67% | 1025 mb (30.27 in) | N 6 kph (N 3.5 mph) | - | 7SM |
| | KONP 042011Z AUTO 35003KT 7SM OVC030 10/04 A3027 RMK AO1 |
| 11:51 PST |  Overcast | 9°C / 48°F | 3°C / 37°F | 66% | 1025 mb (30.27 in) | Calm | - | 7SM |
| | KONP 041951Z AUTO 00000KT 7SM OVC028 09/03 A3027 RMK AO1 |
| 11:31 PST |  Overcast | 9°C / 48°F | 3°C / 37°F | 66% | 1025 mb (30.27 in) | Calm | - | 7SM |
| | KONP 041931Z AUTO 00000KT 7SM OVC028 09/03 A3027 RMK AO1 |
| 11:11 PST |  Overcast | 11°C / 52°F | 3°C / 37°F | 58% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KONP 041911Z AUTO 00000KT 10SM OVC028 11/03 A3028 RMK AO1 |
| 10:51 PST |  Partly Cloudy | 9°C / 48°F | 3°C / 37°F | 66% | 1025 mb (30.27 in) | NE 6 kph (NE 3.5 mph) | - | 10SM |
| | KONP 041851Z AUTO 05003KT 10SM SCT028 09/03 A3028 RMK AO1 |
| 10:31 PST |  Clear | 9°C / 48°F | 3°C / 37°F | 66% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KONP 041831Z AUTO 00000KT 10SM CLR 09/03 A3029 RMK AO1 |
| 10:11 PST |  Clear | 8°C / 46°F | 3°C / 37°F | 71% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KONP 041811Z AUTO 00000KT 10SM CLR 08/03 A3029 RMK AO1 |
| 09:51 PST |  Clear | 7°C / 45°F | 2°C / 36°F | 71% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KONP 041751Z AUTO 00000KT 10SM CLR 07/02 A3029 RMK AO1 |
| 09:31 PST |  Clear | 5°C / 41°F | 2°C / 36°F | 81% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KONP 041731Z AUTO 00000KT 10SM CLR 05/02 A3029 RMK AO1 |
| 09:11 PST |  Clear | 3°C / 37°F | 1°C / 34°F | 87% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KONP 041711Z AUTO 00000KT 10SM CLR 03/01 A3029 RMK AO1 |
| 08:51 PST |  Clear | 1°C / 34°F | -1°C / 30°F | 87% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KONP 041651Z AUTO 00000KT 10SM CLR 01/M01 A3029 RMK AO1 |
| 08:31 PST |  Clear | 0°C / 32°F | -2°C / 28°F | 87% | 1025 mb (30.27 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KONP 041631Z AUTO 10003KT 10SM CLR 00/M02 A3028 RMK AO1 |
| 08:11 PST |  Clear | -1°C / 30°F | -2°C / 28°F | 93% | 1025 mb (30.27 in) | ESE 6 kph (ESE 3.5 mph) | - | 10SM |
| | KONP 041611Z AUTO 11003KT 10SM CLR M01/M02 A3027 RMK AO1 |
| 07:51 PST |  Clear | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KONP 041551Z AUTO 10003KT 10SM CLR M01/M03 A3027 RMK AO1 |
| 07:31 PST |  Clear | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KONP 041531Z AUTO 09004KT 10SM CLR M01/M03 A3027 RMK AO1 |
| 07:11 PST |  Clear | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 041511Z AUTO 09005KT 10SM CLR M01/M03 A3026 RMK AO1 |
| 06:51 PST |  Clear | -1°C / 30°F | -3°C / 27°F | 86% | 1025 mb (30.27 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 041451Z AUTO 10005KT 10SM CLR M01/M03 A3026 RMK AO1 |
| 06:31 PST |  Clear | 0°C / 32°F | -3°C / 27°F | 80% | 1025 mb (30.27 in) | ENE 9 kph (ENE 5.8 mph) | - | 10SM |
| | KONP 041431Z AUTO 07005KT 10SM CLR 00/M03 A3026 RMK AO1 |
| 06:11 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 041411Z AUTO 09005KT 10SM CLR 01/M03 A3025 RMK AO1 |
| 05:51 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1024 mb (30.24 in) | ENE 6 kph (ENE 3.5 mph) | - | 10SM |
| | KONP 041351Z AUTO 07003KT 10SM CLR 01/M03 A3025 RMK AO1 |
| 05:31 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 041331Z AUTO 09005KT 10SM CLR 01/M03 A3025 RMK AO1 |
| 05:11 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1024 mb (30.24 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KONP 041311Z AUTO 09004KT 10SM CLR 01/M03 A3024 RMK AO1 |
| 04:51 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1024 mb (30.24 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KONP 041251Z AUTO 10004KT 10SM CLR 01/M03 A3024 RMK AO1 |
| 04:31 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1024 mb (30.24 in) | ESE 13 kph (ESE 8.1 mph) | - | 10SM |
| | KONP 041231Z AUTO 11007KT 10SM CLR 01/M03 A3024 RMK AO1 |
| 04:11 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 041211Z AUTO 09005KT 10SM CLR 01/M03 A3024 RMK AO1 |
| 03:51 PST |  Clear | 1°C / 34°F | -3°C / 27°F | 75% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 041151Z AUTO 08005KT 10SM CLR 01/M03 A3024 RMK AO1 |
| 03:31 PST |  Clear | 2°C / 36°F | -3°C / 27°F | 70% | 1024 mb (30.24 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KONP 041131Z AUTO 09003KT 10SM CLR 02/M03 A3024 RMK AO1 |
| 03:11 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1024 mb (30.24 in) | SE 7 kph (SE 4.6 mph) | - | 10SM |
| | KONP 041111Z AUTO 12004KT 10SM CLR 02/M02 A3023 RMK AO1 |
| 02:51 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1024 mb (30.24 in) | E 11 kph (E 6.9 mph) | - | 10SM |
| | KONP 041051Z AUTO 09006KT 10SM CLR 02/M02 A3024 RMK AO1 |
| 02:31 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1024 mb (30.24 in) | E 11 kph (E 6.9 mph) | - | 10SM |
| | KONP 041031Z AUTO 09006KT 10SM CLR 02/M02 A3024 RMK AO1 |
| 02:11 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1024 mb (30.24 in) | E 11 kph (E 6.9 mph) | - | 10SM |
| | KONP 041011Z AUTO 10006KT 10SM CLR 02/M02 A3024 RMK AO1 |
| 01:51 PST |  Clear | 2°C / 36°F | -2°C / 28°F | 75% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 040951Z AUTO 08005KT 10SM CLR 02/M02 A3024 RMK AO1 |
| 01:31 PST |  Clear | 2°C / 36°F | -3°C / 27°F | 70% | 1024 mb (30.24 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KONP 040931Z AUTO 10004KT 10SM CLR 02/M03 A3024 RMK AO1 |
| 01:11 PST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 040911Z AUTO 08005KT 10SM CLR 03/M02 A3024 RMK AO1 |
| 00:51 PST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 040851Z AUTO 08005KT 10SM CLR 03/M02 A3024 RMK AO1 |
| 00:31 PST |  Clear | 3°C / 37°F | -2°C / 28°F | 70% | 1024 mb (30.24 in) | E 9 kph (E 5.8 mph) | - | 10SM |
| | KONP 040831Z AUTO 08005KT 10SM CLR 03/M02 A3024 RMK AO1 |
| 00:11 PST |  Clear | 3°C / 37°F | -3°C / 27°F | 65% | 1024 mb (30.24 in) | E 13 kph (E 8.1 mph) | - | 10SM |
| | KONP 040811Z AUTO 08007KT 10SM CLR 03/M03 A3024 RMK AO1 |