| 15:50 PST |  Overcast Light Rain | 0°C / 32°F | 0°C / 32°F | 100% | 1025 mb (30.27 in) | S 11 kph (S 6.9 mph) | - | 7SM |
| | KSZT 282350Z AUTO 19006KT 7SM -RA BKN020 BKN031 OVC043 00/00 A3026 RMK AO2 |
| 15:30 PST |  Overcast Drizzle | 1°C / 34°F | 0°C / 32°F | 93% | 1025 mb (30.27 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KSZT 282330Z AUTO 20004KT 10SM DZ OVC018 01/00 A3027 RMK AO2 |
| 15:10 PST |  Overcast Drizzle | 1°C / 34°F | 0°C / 32°F | 93% | 1025 mb (30.27 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KSZT 282310Z AUTO 20005KT 10SM -DZ SCT015 OVC022 01/00 A3026 RMK AO2 |
| 14:50 PST |  Overcast Light Rain | 1°C / 34°F | 0°C / 32°F | 93% | 1025 mb (30.27 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KSZT 282250Z AUTO 20004KT 10SM -RA OVC026 01/00 A3026 RMK AO2 |
| 14:30 PST |  Overcast Light Rain | 1°C / 34°F | 0°C / 32°F | 93% | 1025 mb (30.27 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KSZT 282230Z AUTO 19005KT 10SM -RA SCT018 OVC028 01/00 A3026 RMK AO2 |
| 14:10 PST |  Overcast Light Snow | 1°C / 34°F | 0°C / 32°F | 93% | 1025 mb (30.27 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KSZT 282210Z AUTO 20005KT 10SM -SN BKN018 OVC026 01/00 A3027 RMK AO2 |
| 13:50 PST |  Overcast Snow | 1°C / 34°F | 1°C / 34°F | 100% | 1025 mb (30.27 in) | S 9 kph (S 5.8 mph) | - | 7SM |
| | KSZT 282150Z AUTO 19005KT 7SM SN OVC016 01/01 A3027 RMK AO2 |
| 13:30 PST |  Overcast | 2°C / 36°F | 2°C / 36°F | 100% | 1025 mb (30.27 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KSZT 282130Z AUTO 19004KT 10SM OVC016 02/02 A3027 RMK AO2 |
| 13:10 PST |  Overcast Light Rain | 9°C / 48°F | 9°C / 48°F | 100% | 1025 mb (30.27 in) | S 7 kph (S 4.6 mph) | - | 5SM |
| | KSZT 282110Z AUTO 18004KT 5SM -RA OVC014 09/09 A3027 RMK AO2 |
| 12:50 PST |  Overcast Light Snow | 8°C / 46°F | 8°C / 46°F | 100% | 1025 mb (30.27 in) | SSE 7 kph (SSE 4.6 mph) | - | 3SM |
| | KSZT 282050Z AUTO 20004KT 3SM -SN BKN010 OVC014 08/08 A3028 RMK AO2 |
| 12:30 PST |  Overcast | 7°C / 45°F | 7°C / 45°F | 100% | 1025 mb (30.27 in) | SW 9 kph (SW 5.8 mph) | - | 7SM |
| | KSZT 282030Z AUTO 21005KT 7SM OVC008 07/07 A3028 RMK AO2 |
| 12:10 PST |  Overcast | 6°C / 43°F | 6°C / 43°F | 100% | 1025 mb (30.27 in) | SW 6 kph (SW 3.5 mph) | - | 7SM |
| | KSZT 282010Z AUTO 21003KT 7SM OVC008 06/06 A3028 RMK AO2 |
| 11:50 PST |  Overcast | 4°C / 39°F | 4°C / 39°F | 100% | 1025 mb (30.27 in) | S 9 kph (S 5.8 mph) | - | 7SM |
| | KSZT 281950Z AUTO 19005KT 7SM OVC008 04/04 A3028 RMK AO2 |
| 11:30 PST |  Overcast | 3°C / 37°F | 2°C / 36°F | 93% | 1025 mb (30.27 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KSZT 281930Z AUTO 18006KT 10SM OVC010 03/02 A3028 RMK AO2 |
| 11:10 PST |  Overcast | 3°C / 37°F | 2°C / 36°F | 93% | 1026 mb (30.3 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KSZT 281910Z AUTO 19005KT 10SM OVC010 03/02 A3029 RMK AO2 |
| 10:50 PST |  Overcast | 2°C / 36°F | 2°C / 36°F | 100% | 1026 mb (30.3 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KSZT 281850Z AUTO 18006KT 10SM BKN010 OVC015 02/02 A3029 RMK AO2 |
| 10:30 PST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KSZT 281830Z AUTO 20006KT 10SM OVC015 02/01 A3030 RMK AO2 |
| 10:10 PST |  Overcast | 2°C / 36°F | 1°C / 34°F | 93% | 1026 mb (30.3 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KSZT 281810Z AUTO 20005KT 10SM OVC017 02/01 A3030 RMK AO2 |
| 09:50 PST |  Overcast | 1°C / 34°F | 1°C / 34°F | 100% | 1026 mb (30.3 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KSZT 281750Z AUTO 20005KT 10SM OVC019 01/01 A3030 RMK AO2 |
| 09:30 PST |  Overcast | 0°C / 32°F | 0°C / 32°F | 100% | 1026 mb (30.3 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KSZT 281730Z AUTO 22006KT 10SM OVC019 00/00 A3030 RMK AO2 |
| 09:10 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1026 mb (30.3 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KSZT 281710Z AUTO 20006KT 10SM OVC021 00/M01 A3029 RMK AO2 |
| 08:50 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1026 mb (30.3 in) | SSE 11 kph (SSE 6.9 mph) | - | 10SM |
| | KSZT 281650Z AUTO 20006KT 10SM BKN023 BKN033 OVC075 00/M01 A3029 RMK AO2 |
| 08:30 PST |  Overcast | 0°C / 32°F | -1°C / 30°F | 93% | 1026 mb (30.3 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KSZT 281630Z AUTO 21006KT 10SM BKN033 BKN039 OVC075 00/M01 A3029 RMK AO2 |
| 08:10 PST |  Overcast | -1°C / 30°F | -1°C / 30°F | 100% | 1026 mb (30.3 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KSZT 281610Z AUTO 20005KT 10SM SCT035 OVC041 M01/M01 A3029 RMK AO2 |
| 07:50 PST |  Overcast | -1°C / 30°F | -2°C / 28°F | 93% | 1025 mb (30.27 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KSZT 281550Z AUTO 20005KT 10SM OVC040 M01/M02 A3028 RMK AO2 |
| 07:30 PST |  Overcast | -2°C / 28°F | -2°C / 28°F | 100% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KSZT 281530Z AUTO 00000KT 10SM OVC040 M02/M02 A3028 RMK AO2 |
| 07:10 PST |  Overcast | -2°C / 28°F | -2°C / 28°F | 100% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KSZT 281510Z AUTO 00000KT 10SM OVC040 M02/M02 A3027 RMK AO2 |
| 06:50 PST |  Overcast | -2°C / 28°F | -2°C / 28°F | 100% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KSZT 281450Z AUTO 00000KT 10SM OVC040 M02/M02 A3028 RMK AO2 |
| 06:30 PST |  Partly Cloudy | -2°C / 28°F | -3°C / 27°F | 93% | 1025 mb (30.27 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KSZT 281430Z AUTO 18004KT 10SM SCT042 M02/M03 A3027 RMK AO2 |
| 06:10 PST |  Clear | -3°C / 27°F | -3°C / 27°F | 100% | 1025 mb (30.27 in) | S 11 kph (S 6.9 mph) | - | 10SM |
| | KSZT 281410Z AUTO 18006KT 10SM CLR M03/M03 A3027 RMK AO2 |
| 05:50 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1025 mb (30.27 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KSZT 281350Z AUTO 19004KT 10SM CLR M03/M04 A3026 RMK AO2 |
| 05:30 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSZT 281330Z AUTO 00000KT 10SM CLR M03/M04 A3025 RMK AO2 |
| 05:10 PST |  Clear | -3°C / 27°F | -3°C / 27°F | 100% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSZT 281310Z AUTO 00000KT 10SM CLR M03/M03 A3024 RMK AO2 |
| 04:50 PST |  Clear | -3°C / 27°F | -3°C / 27°F | 100% | 1024 mb (30.24 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KSZT 281250Z AUTO 20004KT 10SM CLR M03/M03 A3024 RMK AO2 |
| 04:30 PST |  Clear | -2°C / 28°F | -3°C / 27°F | 93% | 1024 mb (30.24 in) | SSE 9 kph (SSE 5.8 mph) | - | 10SM |
| | KSZT 281230Z AUTO 20005KT 10SM CLR M02/M03 A3024 RMK AO2 |
| 04:10 PST |  Clear | -3°C / 27°F | -4°C / 25°F | 93% | 1024 mb (30.24 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KSZT 281210Z AUTO 19004KT 10SM CLR M03/M04 A3024 RMK AO2 |
| 03:50 PST |  Partly Cloudy | -3°C / 27°F | -3°C / 27°F | 100% | 1024 mb (30.24 in) | S 9 kph (S 5.8 mph) | - | 10SM |
| | KSZT 281150Z AUTO 19005KT 10SM SCT090 M03/M03 A3024 RMK AO2 |
| 03:30 PST |  Partly Cloudy | -3°C / 27°F | -4°C / 25°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSZT 281130Z AUTO 00000KT 10SM SCT090 M03/M04 A3024 RMK AO2 |
| 03:10 PST |  Partly Cloudy | -3°C / 27°F | -5°C / 23°F | 86% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSZT 281110Z AUTO 00000KT 10SM SCT090 M03/M05 A3024 RMK AO2 |
| 02:50 PST |  Clear | -2°C / 28°F | -3°C / 27°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSZT 281050Z AUTO 00000KT 10SM CLR M02/M03 A3023 RMK AO2 |
| 02:30 PST |  Clear | -2°C / 28°F | -2°C / 28°F | 100% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSZT 281030Z AUTO 00000KT 10SM CLR M02/M02 A3023 RMK AO2 |
| 02:10 PST |  Clear | -2°C / 28°F | -2°C / 28°F | 100% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KSZT 281010Z AUTO 00000KT 10SM CLR M02/M02 A3023 RMK AO2 |
| 01:50 PST |  Clear | -1°C / 30°F | -1°C / 30°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KSZT 280950Z AUTO 00000KT 10SM CLR M01/M01 A3022 RMK AO2 |
| 01:30 PST |  Clear | -2°C / 28°F | -2°C / 28°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KSZT 280930Z AUTO 00000KT 10SM CLR M02/M02 A3021 RMK AO2 |
| 01:10 PST |  Clear | -2°C / 28°F | -2°C / 28°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KSZT 280910Z AUTO 00000KT 10SM CLR M02/M02 A3021 RMK AO2 |
| 00:50 PST |  Clear | 2°C / 36°F | 2°C / 36°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KSZT 280850Z AUTO 00000KT 10SM CLR 02/02 A3021 RMK AO2 |
| 00:30 PST |  Clear | 9°C / 48°F | 9°C / 48°F | 100% | 1023 mb (30.21 in) | Calm | - | 7SM |
| | KSZT 280830Z AUTO 00000KT 7SM CLR 09/09 A3021 RMK AO2 |
| 00:10 PST |  Clear | 18°C / 64°F | 17°C / 63°F | 94% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KSZT 280810Z AUTO 00000KT 10SM CLR 18/17 A3021 RMK AO2 |