| 11:53 PST |  Clear | 6°C / 43°F | 3°C / 37°F | 81% | 1022 mb (30.18 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KUIL 041953Z AUTO 35004KT 10SM CLR 06/03 A3019 RMK AO2 SLP226 T00610028 PWINO TSNO $ |
| 10:53 PST |  Fair | 5°C / 41°F | 2°C / 36°F | 81% | 1022 mb (30.18 in) | NE 7 kph (NE 4.6 mph) | - | |
| | KUIL 041853Z AUTO 03004KT 05/02 A3019 RMK AO2 SLP226 T00500017 TSNO $ |
| 09:53 PST |  Clear | 2°C / 36°F | 1°C / 34°F | 93% | 1023 mb (30.21 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KUIL 041753Z AUTO 10003KT 10SM CLR 02/01 A3020 RMK AO2 SLP227 T00170006 10017 21033 58003 TSNO |
| 08:53 PST |  Clear | -1°C / 30°F | -1°C / 30°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KUIL 041653Z AUTO 00000KT 10SM CLR M01/M01 A3020 RMK AO2 SLP228 T10061011 TSNO |
| 08:42 PST |  Clear Fog And Mist | -2°C / 28°F | -2°C / 28°F | 100% | 1023 mb (30.21 in) | Calm | - | 3SM |
| | KUIL 041642Z AUTO 00000KT 3SM BR CLR M02/M02 A3021 RMK AO2 TSNO |
| 08:35 PST |  Clear Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | Calm | - | 1 1/2SM |
| | KUIL 041635Z AUTO 00000KT 1 1/2SM BR CLR M01/M02 A3020 RMK AO2 VIS 1/2V4 TSNO |
| 08:27 PST |  Clear Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1023 mb (30.21 in) | Calm | - | 3/4SM |
| | KUIL 041627Z AUTO 00000KT 3/4SM BR CLR M02/M03 A3021 RMK AO2 TSNO |
| 08:24 PST |  Clear Fog And Mist | -2°C / 28°F | -2°C / 28°F | 100% | 1023 mb (30.21 in) | Calm | - | 1 1/2SM |
| | KUIL 041624Z AUTO 00000KT 1 1/2SM BR CLR M02/M02 A3021 RMK AO2 TSNO |
| 07:53 PST |  Partly Cloudy | -2°C / 28°F | -2°C / 28°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KUIL 041553Z AUTO 00000KT 10SM FEW020 M02/M02 A3021 RMK AO2 SLP231 T10171022 TSNO |
| 07:42 PST |  Partly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KUIL 041542Z AUTO 09003KT 10SM SCT021 M01/M02 A3021 RMK AO2 TSNO |
| 07:10 PST |  Mostly Cloudy | -3°C / 27°F | -4°C / 25°F | 93% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KUIL 041510Z AUTO 00000KT 10SM BKN021 M03/M04 A3020 RMK AO2 TSNO |
| 06:53 PST |  Clear | -2°C / 28°F | -2°C / 28°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KUIL 041453Z AUTO 00000KT 10SM CLR M02/M02 A3021 RMK AO2 SLP230 T10171022 56008 TSNO |
| 05:53 PST |  Partly Cloudy | -2°C / 28°F | -2°C / 28°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KUIL 041353Z AUTO 00000KT 10SM FEW015 M02/M02 A3021 RMK AO2 SLP231 T10171022 TSNO |
| 04:53 PST |  Partly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | Calm | - | 9SM |
| | KUIL 041253Z AUTO 00000KT 9SM FEW017 M01/M02 A3022 RMK AO2 SLP235 T10061017 TSNO |
| 04:44 PST |  Partly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KUIL 041244Z AUTO 00000KT 10SM SCT017 M01/M02 A3022 RMK AO2 TSNO |
| 04:29 PST |  Mostly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 041229Z AUTO 00000KT 10SM BKN017 M01/M02 A3023 RMK AO2 TSNO |
| 04:03 PST |  Partly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 041203Z AUTO 00000KT 10SM SCT019 M01/M02 A3023 RMK AO2 TSNO |
| 03:53 PST |  Mostly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 041153Z AUTO 00000KT 10SM BKN019 M01/M02 A3023 RMK AO2 SLP238 T10061017 10006 21022 58003 TSNO |
| 02:53 PST |  Mostly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 041053Z AUTO 00000KT 10SM BKN023 M01/M02 A3024 RMK AO2 SLP240 T10111017 TSNO |
| 02:46 PST |  Mostly Cloudy | -2°C / 28°F | -2°C / 28°F | 100% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 041046Z AUTO 00000KT 10SM BKN023 M02/M02 A3024 RMK AO2 TSNO |
| 02:08 PST |  Partly Cloudy | -1°C / 30°F | -1°C / 30°F | 100% | 1024 mb (30.24 in) | E 6 kph (E 3.5 mph) | - | 10SM |
| | KUIL 041008Z AUTO 09003KT 10SM SCT023 M01/M01 A3023 RMK AO2 TSNO |
| 01:53 PST |  Mostly Cloudy | -1°C / 30°F | -1°C / 30°F | 100% | 1024 mb (30.24 in) | E 7 kph (E 4.6 mph) | - | 10SM |
| | KUIL 040953Z AUTO 09004KT 10SM BKN023 M01/M01 A3024 RMK AO2 SLP240 T10061011 TSNO |
| 01:32 PST |  Mostly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 040932Z AUTO 00000KT 10SM BKN023 M01/M02 A3024 RMK AO2 TSNO |
| 01:01 PST |  Partly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 040901Z AUTO 00000KT 10SM SCT025 M01/M02 A3024 RMK AO2 TSNO |
| 00:53 PST |  Mostly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 040853Z AUTO 00000KT 10SM BKN025 M01/M02 A3024 RMK AO2 SLP240 T10061017 50002 TSNO |
| 00:46 PST |  Mostly Cloudy | -1°C / 30°F | -2°C / 28°F | 93% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KUIL 040846Z AUTO 00000KT 10SM BKN025 M01/M02 A3024 RMK AO2 TSNO |