| 20:53 PST |  Clear | 8°C / 46°F | 8°C / 46°F | 100% | 1015 mb (29.97 in) | SSW 9 kph (SSW 5.8 mph) | 0.00 mm (0.00 in) | |
| | KWVI 220453Z AUTO 24005KT CLR 08/08 A2996 RMK AO2 RAE01B20E37 SLP146 P0000 T00830078 $ |
| 20:36 PST |  Partly Cloudy Light Rain | 9°C / 48°F | 8°C / 46°F | 94% | 1015 mb (29.97 in) | SW 6 kph (SW 3.5 mph) | 0.00 mm (0.00 in) | |
| | KWVI 220436Z AUTO 23003KT -RA FEW023 SCT029 09/08 A2996 RMK AO2 RAE01B20 P0000 $ |
| 20:26 PST |  Mostly Cloudy Light Rain | 10°C / 50°F | 9°C / 48°F | 94% | 1015 mb (29.97 in) | SSW 7 kph (SSW 4.6 mph) | 0.00 mm (0.00 in) | |
| | KWVI 220426Z AUTO 24004KT -RA SCT023 BKN029 BKN036 10/09 A2996 RMK AO2 RAE01B20 P0000 $ |
| 19:53 PST |  Partly Cloudy Light Rain | 10°C / 50°F | 9°C / 48°F | 94% | 1015 mb (29.97 in) | SSW 7 kph (SSW 4.6 mph) | 0.00 mm (0.00 in) | |
| | KWVI 220353Z AUTO 25004KT -RA FEW029 SCT060 10/09 A2997 RMK AO2 RAB51 SLP148 P0000 T01000089 $ |
| 18:53 PST |  Partly Cloudy | 11°C / 52°F | 9°C / 48°F | 88% | 1015 mb (29.97 in) | SSW 6 kph (SSW 3.5 mph) | - | |
| | KWVI 220253Z AUTO 24003KT FEW055 11/09 A2996 RMK AO2 SLP145 T01060094 52008 $ |
| 17:53 PST |  Mostly Cloudy | 11°C / 52°F | 9°C / 48°F | 88% | 1014 mb (29.94 in) | SSW 11 kph (SSW 6.9 mph) | - | |
| | KWVI 220153Z AUTO 25006KT SCT048 BKN060 11/09 A2995 RMK AO2 SLP143 T01110094 $ |
| 17:12 PST |  Overcast | 12°C / 54°F | 12°C / 54°F | 100% | 1014 mb (29.94 in) | SSW 15 kph (SSW 9.2 mph) | - | |
| | KWVI 220112Z AUTO 25008KT FEW006 OVC049 12/12 A2995 RMK AO2 $ |
| 16:53 PST |  Overcast | 12°C / 54°F | 12°C / 54°F | 100% | 1014 mb (29.94 in) | SW 6 kph (SW 3.5 mph) | - | |
| | KWVI 220053Z AUTO 22003KT BKN006 BKN012 OVC045 12/12 A2995 RMK AO2 CIG 004V009 SLP140 T01170117 $ |
| 15:53 PST |  Overcast | 12°C / 54°F | 12°C / 54°F | 100% | 1014 mb (29.94 in) | Calm | 0.00 mm (0.00 in) | |
| | KWVI 212353Z AUTO 00000KT OVC006 12/12 A2994 RMK AO2 RAE01 CIG 004V010 SLP137 P0000 60004 T01220122 10128 20117 56008 |
| 14:53 PST |  Overcast Light Rain | 13°C / 55°F | 13°C / 55°F | 100% | 1014 mb (29.94 in) | SW 9 kph (SW 5.8 mph) | 0.00 mm (0.00 in) | |
| | KWVI 212253Z AUTO 22005KT -RA BKN006 OVC043 13/13 A2995 RMK AO2 RAB12 SLP141 P0000 T01280128 $ |
| 14:48 PST |  Overcast Light Rain | 12°C / 54°F | 12°C / 54°F | 100% | 1014 mb (29.94 in) | SW 9 kph (SW 5.8 mph) | 0.00 mm (0.00 in) | |
| | KWVI 212248Z AUTO 22005KT -RA OVC004 12/12 A2995 RMK AO2 RAB12 P0000 $ |
| 13:53 PST |  Overcast | 13°C / 55°F | 12°C / 54°F | 94% | 1015 mb (29.97 in) | SW 11 kph (SW 6.9 mph) | 0.00 mm (0.00 in) | |
| | KWVI 212153Z AUTO 23006KT OVC006 13/12 A2996 RMK AO2 PK WND 03051/2120 RAE21 CIG 003V010 SLP145 P0000 T01280122 $ |
| 13:21 PST |  Overcast | 13°C / 55°F | 13°C / 55°F | 100% | 1015 mb (29.97 in) | Variable 11 kph (Variable 6.9 mph) | 0.00 mm (0.00 in) | |
| | KWVI 212121Z AUTO VRB06G51KT OVC003 13/13 A2997 RMK AO2 PK WND 03051/2120 RAE21 P0000 $ |
| 13:14 PST |  Overcast Light Rain | 12°C / 54°F | 12°C / 54°F | 100% | 1015 mb (29.97 in) | SW 6 kph (SW 3.5 mph) | 0.00 mm (0.00 in) | |
| | KWVI 212114Z AUTO 21003KT -RA OVC005 12/12 A2998 RMK AO2 CIG 002V008 P0000 $ |
| 13:06 PST |  Overcast Light Rain | 12°C / 54°F | 12°C / 54°F | 100% | 1015 mb (29.97 in) | S 6 kph (S 3.5 mph) | 0.00 mm (0.00 in) | |
| | KWVI 212106Z AUTO 19003KT -RA OVC003 12/12 A2998 RMK AO2 CIG 002V007 P0000 $ |
| 12:53 PST |  Overcast Light Rain | 12°C / 54°F | 12°C / 54°F | 100% | 1015 mb (29.97 in) | SSE 6 kph (SSE 3.5 mph) | 1.02 mm (0.04 in) | |
| | KWVI 212053Z AUTO 20003KT -RA OVC005 12/12 A2998 RMK AO2 RAB11 CIG 002V007 SLP153 P0004 60004 T01220117 58020 $ |
| 11:53 PST |  Overcast | 12°C / 54°F | 11°C / 52°F | 94% | 1017 mb (30.03 in) | Calm | 0.00 mm (0.00 in) | |
| | KWVI 211953Z AUTO 00000KT OVC005 12/11 A3002 RMK AO2 RAB18E39 CIG 004V009 SLP164 P0000 T01220111 $ |
| 11:49 PST |  Overcast | 12°C / 54°F | 11°C / 52°F | 94% | 1017 mb (30.03 in) | SSE 6 kph (SSE 3.5 mph) | 0.00 mm (0.00 in) | |
| | KWVI 211949Z AUTO 15003KT OVC005 12/11 A3002 RMK AO2 RAB18E39 P0000 $ |
| 10:53 PST |  Overcast | 12°C / 54°F | 11°C / 52°F | 94% | 1017 mb (30.03 in) | Calm | - | |
| | KWVI 211853Z AUTO 00000KT BKN006 OVC011 12/11 A3004 RMK AO2 SLP173 T01170106 $ |
| 10:16 PST |  Overcast | 12°C / 54°F | 11°C / 52°F | 94% | 1018 mb (30.06 in) | Calm | - | |
| | KWVI 211816Z AUTO 00000KT BKN008 OVC013 12/11 A3005 RMK AO2 CIG 006V010 $ |
| 10:03 PST |  Overcast | 12°C / 54°F | 10°C / 50°F | 88% | 1018 mb (30.06 in) | Calm | - | |
| | KWVI 211803Z AUTO 00000KT SCT008 OVC013 12/10 A3005 RMK AO2 $ |
| 09:53 PST |  Overcast | 12°C / 54°F | 10°C / 50°F | 88% | 1018 mb (30.06 in) | Calm | - | |
| | KWVI 211753Z AUTO 00000KT OVC013 12/10 A3005 RMK AO2 SLP176 60000 T01170100 10117 20089 53002 $ |
| 09:15 PST |  Overcast | 11°C / 52°F | 10°C / 50°F | 94% | 1018 mb (30.06 in) | Calm | - | |
| | KWVI 211715Z AUTO 00000KT OVC013 11/10 A3005 RMK AO2 $ |
| 08:53 PST |  Overcast | 11°C / 52°F | 9°C / 48°F | 88% | 1018 mb (30.06 in) | Calm | 0.00 mm (0.00 in) | |
| | KWVI 211653Z AUTO 00000KT OVC015 11/09 A3005 RMK AO2 RAB1554E05 SLP174 P0000 T01060094 $ |
| 08:17 PST |  Overcast | 10°C / 50°F | 9°C / 48°F | 94% | 1018 mb (30.06 in) | Calm | 0.00 mm (0.00 in) | |
| | KWVI 211617Z AUTO 00000KT OVC021 10/09 A3005 RMK AO2 RAB1554E05 P0000 $ |
| 08:10 PST |  Overcast Fog | 10°C / 50°F | 9°C / 48°F | 94% | 1018 mb (30.06 in) | Calm | 0.00 mm (0.00 in) | 1/2SM |
| | KWVI 211610Z AUTO 00000KT 1/2SM FG OVC021 10/09 A3005 RMK AO2 VIS M1/4V5 RAB1554E05 P0000 |
| 07:53 PST |  Overcast | 10°C / 50°F | 9°C / 48°F | 94% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KWVI 211553Z AUTO 00000KT 10SM BKN021 OVC028 10/09 A3005 RMK AO2 SLP174 T01000089 |
| 07:23 PST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1017 mb (30.03 in) | Calm | - | |
| | KWVI 211523Z AUTO 00000KT BKN027 OVC055 09/09 A3004 RMK AO2 |
| 06:53 PST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | Calm | 0.00 mm (0.00 in) | |
| | KWVI 211453Z AUTO 00000KT SCT019 BKN035 OVC055 09/09 A3005 RMK AO2 RAB06E24 SLP174 P0000 60000 T00940089 56004 $ |
| 05:53 PST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1018 mb (30.06 in) | Calm | - | |
| | KWVI 211353Z AUTO 00000KT FEW021 OVC041 09/08 A3005 RMK AO2 SLP174 T00940083 $ |
| 05:29 PST |  Mostly Cloudy | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | Calm | - | |
| | KWVI 211329Z AUTO 00000KT SCT021 BKN041 BKN055 09/08 A3004 RMK AO2 $ |
| 05:22 PST |  Mostly Cloudy | 9°C / 48°F | 8°C / 46°F | 94% | 1017 mb (30.03 in) | Calm | - | |
| | KWVI 211322Z AUTO 00000KT BKN021 BKN043 BKN060 09/08 A3004 RMK AO2 $ |
| 04:53 PST |  Overcast | 9°C / 48°F | 8°C / 46°F | 94% | 1018 mb (30.06 in) | NNW 6 kph (NNW 3.5 mph) | - | |
| | KWVI 211253Z AUTO 33003KT FEW023 BKN046 OVC070 09/08 A3005 RMK AO2 SLP175 T00890078 $ |
| 03:53 PST |  Overcast | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | Calm | - | |
| | KWVI 211153Z AUTO 00000KT OVC042 09/09 A3006 RMK AO2 SLP178 60000 T00890089 10111 20089 58002 $ |
| 02:53 PST |  Partly Cloudy | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | NW 7 kph (NW 4.6 mph) | - | |
| | KWVI 211053Z AUTO 30004KT FEW009 SCT090 09/09 A3006 RMK AO2 SLP179 T00890089 $ |
| 02:48 PST |  Mostly Cloudy | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | Calm | - | |
| | KWVI 211048Z AUTO 00000KT FEW003 SCT009 BKN090 09/09 A3006 RMK AO2 $ |
| 02:38 PST |  Mostly Cloudy | 9°C / 48°F | 9°C / 48°F | 100% | 1018 mb (30.06 in) | NW 6 kph (NW 3.5 mph) | - | |
| | KWVI 211038Z AUTO 30003KT SCT001 BKN009 BKN090 09/09 A3006 RMK AO2 $ |
| 02:04 PST |  Overcast | 10°C / 50°F | 9°C / 48°F | 94% | 1018 mb (30.06 in) | NW 9 kph (NW 5.8 mph) | - | |
| | KWVI 211004Z AUTO 30005KT OVC001 10/09 A3006 RMK AO2 $ |
| 01:53 PST |  Overcast | 10°C / 50°F | 9°C / 48°F | 94% | 1018 mb (30.06 in) | NW 7 kph (NW 4.6 mph) | - | |
| | KWVI 210953Z AUTO 30004KT OVC003 10/09 A3006 RMK AO2 SLP180 T01000089 $ |
| 00:53 PST |  Overcast | 11°C / 52°F | 9°C / 48°F | 88% | 1019 mb (30.09 in) | Calm | - | |
| | KWVI 210853Z AUTO 00000KT OVC003 11/09 A3008 RMK AO2 SLP184 60000 T01060089 58008 $ |
| 00:41 PST |  Overcast | 11°C / 52°F | 9°C / 48°F | 88% | 1019 mb (30.09 in) | Calm | - | |
| | KWVI 210841Z AUTO 00000KT BKN003 BKN042 OVC080 11/09 A3008 RMK AO2 $ |
| 00:06 PST |  Overcast | 11°C / 52°F | 9°C / 48°F | 88% | 1019 mb (30.09 in) | Calm | - | |
| | KWVI 210806Z AUTO 00000KT SCT005 OVC042 11/09 A3009 RMK AO2 $ |