| 07:53 PST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1027 mb (30.33 in) | SSW 13 kph (SSW 8.1 mph) | 0.00 mm (0.00 in) | 9SM |
| | KSHN 291553Z AUTO 25007KT 9SM OVC008 09/08 A3033 RMK AO2 RAE10 SLP273 P0000 T00890083 |
| 07:34 PST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1027 mb (30.33 in) | SSW 15 kph (SSW 9.2 mph) | 0.00 mm (0.00 in) | 9SM |
| | KSHN 291534Z AUTO 25008KT 9SM BKN008 OVC065 09/08 A3033 RMK AO2 RAE10 P0000 |
| 07:26 PST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1027 mb (30.33 in) | SSW 13 kph (SSW 8.1 mph) | 0.00 mm (0.00 in) | 10SM |
| | KSHN 291526Z AUTO 25007KT 10SM SCT008 BKN011 OVC065 09/08 A3033 RMK AO2 RAE10 P0000 |
| 07:16 PST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1027 mb (30.33 in) | SSW 17 kph (SSW 10.4 mph) | 0.00 mm (0.00 in) | 10SM |
| | KSHN 291516Z AUTO 25009KT 10SM SCT008 BKN043 OVC065 09/08 A3033 RMK AO2 RAE10 P0000 |
| 06:53 PST |  Partly Cloudy Light Rain | 9°C / 48°F | 8°C / 46°F | 94% | 1027 mb (30.33 in) | SSW 24 kph (SSW 15 mph) | 0.00 mm (0.00 in) | 9SM |
| | KSHN 291453Z AUTO 25013KT 9SM -RA FEW026 SCT060 09/08 A3032 RMK AO2 RAE1358B53 SLP271 P0000 60001 T00890083 55002 |
| 05:53 PST |  Overcast Light Rain | 9°C / 48°F | 8°C / 46°F | 94% | 1027 mb (30.33 in) | SSW 19 kph (SSW 11.5 mph) | 0.00 mm (0.00 in) | 9SM |
| | KSHN 291353Z AUTO 24010KT 9SM -RA BKN060 OVC070 09/08 A3032 RMK AO2 RAE09B48 SLP271 P0000 T00890078 |
| 04:53 PST |  Overcast Light Rain | 8°C / 46°F | 8°C / 46°F | 100% | 1027 mb (30.33 in) | SSW 17 kph (SSW 10.4 mph) | 0.25 mm (0.01 in) | 7SM |
| | KSHN 291253Z AUTO 25009KT 7SM -RA FEW009 BKN055 OVC075 08/08 A3033 RMK AO2 RAE23B46 SLP272 P0001 T00830078 |
| 04:38 PST |  Overcast | 8°C / 46°F | 8°C / 46°F | 100% | 1027 mb (30.33 in) | SSW 15 kph (SSW 9.2 mph) | 0.25 mm (0.01 in) | 10SM |
| | KSHN 291238Z AUTO 24008KT 10SM FEW008 OVC070 08/08 A3033 RMK AO2 RAE23 P0001 |
| 04:30 PST |  Overcast | 8°C / 46°F | 8°C / 46°F | 100% | 1027 mb (30.33 in) | SSW 17 kph (SSW 10.4 mph) | 0.25 mm (0.01 in) | 8SM |
| | KSHN 291230Z AUTO 24009KT 8SM SCT010 BKN060 OVC075 08/08 A3033 RMK AO2 RAE23 P0001 |
| 04:14 PST |  Overcast Light Rain | 8°C / 46°F | 8°C / 46°F | 100% | 1027 mb (30.33 in) | SSW 11 kph (SSW 6.9 mph) | 0.25 mm (0.01 in) | 8SM |
| | KSHN 291214Z AUTO 24006KT 8SM -RA SCT006 BKN010 OVC034 08/08 A3033 RMK AO2 P0001 |
| 04:03 PST |  Overcast Light Rain | 8°C / 46°F | 8°C / 46°F | 100% | 1027 mb (30.33 in) | SSW 11 kph (SSW 6.9 mph) | 0.00 mm (0.00 in) | 7SM |
| | KSHN 291203Z AUTO 25006KT 7SM -RA BKN010 BKN035 OVC070 08/08 A3033 RMK AO2 P0000 |
| 03:53 PST |  Overcast Light Rain | 9°C / 48°F | 8°C / 46°F | 94% | 1027 mb (30.33 in) | SSW 13 kph (SSW 8.1 mph) | 0.00 mm (0.00 in) | 8SM |
| | KSHN 291153Z AUTO 24007KT 8SM -RA BKN008 BKN034 OVC080 09/08 A3033 RMK AO2 RAB41 SLP274 P0000 60001 70006 T00890083 10089 20078 57007 |
| 03:26 PST |  Mostly Cloudy | 9°C / 48°F | 8°C / 46°F | 94% | 1027 mb (30.33 in) | SSW 9 kph (SSW 5.8 mph) | - | 10SM |
| | KSHN 291126Z AUTO 24005KT 10SM BKN010 BKN065 09/08 A3033 RMK AO2 |
| 02:53 PST |  Mostly Cloudy | 8°C / 46°F | 8°C / 46°F | 100% | 1027 mb (30.33 in) | SW 17 kph (SW 10.4 mph) | - | 10SM |
| | KSHN 291053Z AUTO 23009KT 10SM BKN070 08/08 A3033 RMK AO2 SLP274 T00830078 |
| 02:07 PST |  Overcast | 8°C / 46°F | 8°C / 46°F | 100% | 1027 mb (30.33 in) | SW 9 kph (SW 5.8 mph) | - | 9SM |
| | KSHN 291007Z AUTO 23005KT 9SM FEW012 OVC070 08/08 A3034 RMK AO2 |
| 01:53 PST |  Overcast | 8°C / 46°F | 8°C / 46°F | 100% | 1028 mb (30.36 in) | SW 9 kph (SW 5.8 mph) | - | 8SM |
| | KSHN 290953Z AUTO 23005KT 8SM BKN012 OVC070 08/08 A3035 RMK AO2 SLP280 T00830078 |
| 01:50 PST |  Overcast | 8°C / 46°F | 8°C / 46°F | 100% | 1028 mb (30.36 in) | SSW 9 kph (SSW 5.8 mph) | - | 8SM |
| | KSHN 290950Z AUTO 24005KT 8SM BKN010 BKN035 OVC070 08/08 A3035 RMK AO2 |
| 00:53 PST |  Overcast Fog And Mist | 8°C / 46°F | 8°C / 46°F | 100% | 1028 mb (30.36 in) | SSW 19 kph (SSW 11.5 mph) | - | 6SM |
| | KSHN 290853Z AUTO 25010KT 6SM BR BKN036 OVC060 08/08 A3036 RMK AO2 SLP282 60001 T00830078 53004 |