| 18:50 PST |  Clear | 11°C / 52°F | 11°C / 52°F | 100% | 1020 mb (30.12 in) | Calm | - | 10SM |
| | KSZT 280250Z AUTO 00000KT 10SM CLR 11/11 A3011 RMK AO2 |
| 18:30 PST |  Clear | 7°C / 45°F | 7°C / 45°F | 100% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSZT 280230Z AUTO 00000KT 10SM CLR 07/07 A3010 RMK AO2 |
| 18:10 PST |  Clear | 0°C / 32°F | -1°C / 30°F | 93% | 1019 mb (30.09 in) | W 6 kph (W 3.5 mph) | - | 10SM |
| | KSZT 280210Z AUTO 28003KT 10SM CLR 00/M01 A3009 RMK AO2 |
| 17:50 PST |  Clear | 0°C / 32°F | -1°C / 30°F | 93% | 1019 mb (30.09 in) | Calm | - | 10SM |
| | KSZT 280150Z AUTO 00000KT 10SM CLR 00/M01 A3008 RMK AO2 |
| 17:30 PST |  Clear | 5°C / 41°F | 4°C / 39°F | 93% | 1018 mb (30.06 in) | Calm | - | 10SM |
| | KSZT 280130Z AUTO 00000KT 10SM CLR 05/04 A3007 RMK AO2 |
| 17:10 PST |  Clear | 6°C / 43°F | 5°C / 41°F | 93% | 1018 mb (30.06 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KSZT 280110Z AUTO 27004KT 10SM CLR 06/05 A3007 RMK AO2 |
| 16:50 PST |  Clear | 4°C / 39°F | 2°C / 36°F | 87% | 1018 mb (30.06 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSZT 280050Z AUTO 25003KT 10SM CLR 04/02 A3006 RMK AO2 |
| 16:30 PST |  Clear | 5°C / 41°F | 2°C / 36°F | 81% | 1017 mb (30.03 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSZT 280030Z AUTO 20003KT 10SM CLR 05/02 A3004 RMK AO2 |
| 16:10 PST |  Clear | 5°C / 41°F | 3°C / 37°F | 87% | 1017 mb (30.03 in) | Calm | - | 10SM |
| | KSZT 280010Z AUTO 00000KT 10SM CLR 05/03 A3003 RMK AO2 |
| 15:50 PST |  Partly Cloudy | 6°C / 43°F | 3°C / 37°F | 81% | 1017 mb (30.03 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KSZT 272350Z AUTO 24003KT 10SM SCT025 06/03 A3003 RMK AO2 |
| 15:30 PST |  Mostly Cloudy | 6°C / 43°F | 3°C / 37°F | 81% | 1017 mb (30.03 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSZT 272330Z AUTO 20003KT 10SM SCT018 BKN026 06/03 A3002 RMK AO2 |
| 15:10 PST |  Overcast | 7°C / 45°F | 3°C / 37°F | 76% | 1016 mb (30 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KSZT 272310Z AUTO 17004KT 10SM BKN018 OVC026 07/03 A3001 RMK AO2 |
| 14:50 PST |  Overcast | 7°C / 45°F | 4°C / 39°F | 81% | 1016 mb (30 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KSZT 272250Z AUTO 17006KT 10SM BKN013 OVC026 07/04 A3000 RMK AO2 |
| 14:30 PST |  Overcast | 8°C / 46°F | 5°C / 41°F | 82% | 1016 mb (30 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KSZT 272230Z AUTO 17006KT 10SM SCT011 OVC026 08/05 A2999 RMK AO2 |
| 14:10 PST |  Overcast | 8°C / 46°F | 5°C / 41°F | 82% | 1015 mb (29.97 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSZT 272210Z AUTO 22003KT 10SM BKN011 OVC024 08/05 A2998 RMK AO2 |
| 13:50 PST |  Overcast | 8°C / 46°F | 5°C / 41°F | 82% | 1015 mb (29.97 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSZT 272150Z AUTO 22004KT 10SM SCT011 BKN021 OVC026 08/05 A2998 RMK AO2 |
| 13:30 PST |  Overcast | 7°C / 45°F | 5°C / 41°F | 87% | 1015 mb (29.97 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KSZT 272130Z AUTO 20005KT 10SM SCT011 SCT014 OVC023 07/05 A2997 RMK AO2 |
| 13:10 PST |  Overcast | 8°C / 46°F | 5°C / 41°F | 82% | 1015 mb (29.97 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KSZT 272110Z AUTO 19005KT 10SM SCT009 SCT014 OVC023 08/05 A2997 RMK AO2 |
| 12:50 PST |  Overcast | 7°C / 45°F | 5°C / 41°F | 87% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KSZT 272050Z AUTO 00000KT 10SM SCT009 BKN021 OVC032 07/05 A2996 RMK AO2 |
| 12:30 PST |  Mostly Cloudy | 6°C / 43°F | 5°C / 41°F | 93% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KSZT 272030Z AUTO 00000KT 10SM SCT021 BKN033 06/05 A2995 RMK AO2 |
| 12:10 PST |  Mostly Cloudy | 6°C / 43°F | 5°C / 41°F | 93% | 1014 mb (29.94 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSZT 272010Z AUTO 22004KT 10SM BKN039 06/05 A2995 RMK AO2 |
| 11:50 PST |  Overcast | 6°C / 43°F | 5°C / 41°F | 93% | 1014 mb (29.94 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KSZT 271950Z AUTO 21004KT 10SM SCT021 OVC039 06/05 A2995 RMK AO2 |
| 11:31 PST |  Overcast | 6°C / 43°F | 5°C / 41°F | 93% | 1014 mb (29.94 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KSZT 271931Z AUTO 22003KT 10SM OVC019 06/05 A2994 RMK AO2 |
| 11:10 PST |  Overcast | 6°C / 43°F | 5°C / 41°F | 93% | 1014 mb (29.94 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KSZT 271910Z AUTO 20003KT 10SM SCT019 BKN070 OVC080 06/05 A2994 RMK AO2 |
| 10:50 PST |  Overcast | 5°C / 41°F | 4°C / 39°F | 93% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSZT 271850Z AUTO 00000KT 10SM SCT009 BKN019 OVC070 05/04 A2992 RMK AO2 |
| 10:30 PST |  Overcast | 4°C / 39°F | 2°C / 36°F | 87% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSZT 271830Z AUTO 00000KT 10SM SCT023 OVC027 04/02 A2992 RMK AO2 |
| 10:10 PST |  Overcast | 3°C / 37°F | 2°C / 36°F | 93% | 1013 mb (29.91 in) | Calm | - | 10SM |
| | KSZT 271810Z AUTO 00000KT 10SM BKN017 OVC025 03/02 A2992 RMK AO2 |
| 09:50 PST |  Overcast | 3°C / 37°F | 2°C / 36°F | 93% | 1013 mb (29.91 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KSZT 271750Z AUTO 03006KT 10SM OVC015 03/02 A2991 RMK AO2 |
| 09:30 PST |  Overcast Drizzle | 4°C / 39°F | 3°C / 37°F | 93% | 1013 mb (29.91 in) | NE 15 kph (NE 9.2 mph) | - | 10SM |
| | KSZT 271730Z AUTO 03008KT 10SM -DZ OVC011 04/03 A2991 RMK AO2 |
| 09:10 PST |  Overcast Light Rain | 5°C / 41°F | 4°C / 39°F | 93% | 1013 mb (29.91 in) | NNE 11 kph (NNE 6.9 mph) | - | 10SM |
| | KSZT 271710Z AUTO 02006KT 10SM -RA OVC009 05/04 A2991 RMK AO2 |
| 08:50 PST |  Overcast Light Rain | 5°C / 41°F | 4°C / 39°F | 93% | 1013 mb (29.91 in) | N 9 kph (N 5.8 mph) | - | 7SM |
| | KSZT 271650Z AUTO 01005KT 7SM -RA OVC011 05/04 A2990 RMK AO2 |
| 08:30 PST |  Overcast Light Rain | 5°C / 41°F | 5°C / 41°F | 100% | 1013 mb (29.91 in) | NE 6 kph (NE 3.5 mph) | - | 4SM |
| | KSZT 271630Z AUTO 03003KT 4SM -RA OVC013 05/05 A2990 RMK AO2 |
| 08:10 PST |  Overcast Light Rain | 5°C / 41°F | 5°C / 41°F | 100% | 1012 mb (29.88 in) | Calm | - | 5SM |
| | KSZT 271610Z AUTO 00000KT 5SM -RA OVC015 05/05 A2989 RMK AO2 |
| 07:50 PST |  Overcast Drizzle | 5°C / 41°F | 4°C / 39°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSZT 271550Z AUTO 00000KT 10SM -DZ OVC018 05/04 A2989 RMK AO2 |
| 07:30 PST |  Overcast Rain | 5°C / 41°F | 4°C / 39°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSZT 271530Z AUTO 00000KT 10SM RA BKN016 OVC023 05/04 A2987 RMK AO2 |
| 07:10 PST |  Overcast Light Rain | 5°C / 41°F | 4°C / 39°F | 93% | 1012 mb (29.88 in) | Calm | - | 10SM |
| | KSZT 271510Z AUTO 00000KT 10SM -RA SCT014 BKN026 OVC034 05/04 A2987 RMK AO2 |
| 06:50 PST |  Overcast Light Rain | 5°C / 41°F | 5°C / 41°F | 100% | 1011 mb (29.85 in) | Calm | - | 7SM |
| | KSZT 271450Z AUTO 00000KT 7SM -RA OVC026 05/05 A2986 RMK AO2 |
| 06:30 PST |  Overcast Light Rain | 5°C / 41°F | 5°C / 41°F | 100% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KSZT 271430Z AUTO 00000KT 10SM -RA OVC029 05/05 A2986 RMK AO2 |
| 06:10 PST |  Overcast Light Rain | 5°C / 41°F | 5°C / 41°F | 100% | 1011 mb (29.85 in) | SSE 6 kph (SSE 3.5 mph) | - | 7SM |
| | KSZT 271410Z AUTO 20003KT 7SM -RA OVC027 05/05 A2986 RMK AO2 |
| 05:50 PST |  Overcast Rain | 5°C / 41°F | 5°C / 41°F | 100% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KSZT 271350Z AUTO 00000KT 10SM RA BKN027 OVC033 05/05 A2986 RMK AO2 |
| 05:30 PST |  Overcast Light Rain | 5°C / 41°F | 5°C / 41°F | 100% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KSZT 271330Z AUTO 00000KT 10SM -RA SCT017 SCT023 OVC033 05/05 A2985 RMK AO2 |
| 05:10 PST |  Overcast Rain | 5°C / 41°F | 5°C / 41°F | 100% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KSZT 271310Z AUTO 00000KT 10SM RA BKN017 BKN027 OVC041 05/05 A2985 RMK AO2 |
| 04:50 PST |  Overcast Light Rain | 6°C / 43°F | 5°C / 41°F | 93% | 1011 mb (29.85 in) | Calm | - | 10SM |
| | KSZT 271250Z AUTO 00000KT 10SM -RA BKN019 OVC029 06/05 A2985 RMK AO2 |
| 04:30 PST |  Overcast Rain | 6°C / 43°F | 5°C / 41°F | 93% | 1011 mb (29.85 in) | Calm | - | 7SM |
| | KSZT 271230Z AUTO 00000KT 7SM RA BKN019 OVC027 06/05 A2985 RMK AO2 |
| 04:10 PST |  Overcast Rain | 6°C / 43°F | 5°C / 41°F | 93% | 1011 mb (29.85 in) | Calm | - | 5SM |
| | KSZT 271210Z AUTO 00000KT 5SM RA OVC019 06/05 A2986 RMK AO2 |
| 03:50 PST |  Overcast Rain | 6°C / 43°F | 5°C / 41°F | 93% | 1011 mb (29.85 in) | Calm | - | 7SM |
| | KSZT 271150Z AUTO 00000KT 7SM RA OVC019 06/05 A2986 RMK AO2 |
| 03:30 PST |  Overcast Light Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1011 mb (29.85 in) | Calm | - | 7SM |
| | KSZT 271130Z AUTO 00000KT 7SM -RA SCT019 BKN027 OVC032 06/06 A2986 RMK AO2 |
| 03:10 PST |  Overcast Light Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1011 mb (29.85 in) | SSE 6 kph (SSE 3.5 mph) | - | 7SM |
| | KSZT 271110Z AUTO 16003KT 7SM -RA BKN027 OVC032 06/06 A2986 RMK AO2 |
| 02:52 PST |  Overcast Light Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1012 mb (29.88 in) | Calm | - | 5SM |
| | KSZT 271052Z AUTO 00000KT 5SM -RA OVC025 06/06 A2987 RMK AO2 |
| 02:30 PST |  Overcast Light Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1012 mb (29.88 in) | Calm | - | 7SM |
| | KSZT 271030Z AUTO 00000KT 7SM -RA OVC021 06/06 A2987 RMK AO2 |
| 02:10 PST |  Overcast Light Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1012 mb (29.88 in) | Calm | - | 5SM |
| | KSZT 271010Z AUTO 00000KT 5SM -RA SCT002 BKN021 OVC029 06/06 A2988 RMK AO2 |
| 01:50 PST |  Overcast Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1012 mb (29.88 in) | Calm | - | 5SM |
| | KSZT 270950Z AUTO 00000KT 5SM RA SCT002 SCT018 OVC023 06/06 A2988 RMK AO2 |
| 01:30 PST |  Overcast Light Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1012 mb (29.88 in) | Calm | - | 7SM |
| | KSZT 270930Z AUTO 00000KT 7SM -RA SCT002 OVC026 06/06 A2988 RMK AO2 |
| 01:10 PST |  Overcast Light Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1012 mb (29.88 in) | Calm | - | 4SM |
| | KSZT 270910Z AUTO 00000KT 4SM -RA BKN002 OVC030 06/06 A2988 RMK AO2 |
| 00:50 PST |  Overcast Drizzle | 6°C / 43°F | 6°C / 43°F | 100% | 1012 mb (29.88 in) | Calm | - | 4SM |
| | KSZT 270850Z AUTO 00000KT 4SM DZ SCT002 OVC030 06/06 A2989 RMK AO2 |
| 00:30 PST |  Overcast Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1012 mb (29.88 in) | Calm | - | 5SM |
| | KSZT 270830Z AUTO 00000KT 5SM RA BKN027 OVC033 06/06 A2989 RMK AO2 |
| 00:10 PST |  Overcast Rain | 6°C / 43°F | 6°C / 43°F | 100% | 1013 mb (29.91 in) | Calm | - | 7SM |
| | KSZT 270810Z AUTO 00000KT 7SM RA SCT002 BKN029 OVC033 06/06 A2990 RMK AO2 |