| 18:56 PST |  Clear | 1°C / 34°F | -11°C / 12°F | 41% | 1026 mb (30.3 in) | Calm | - | 10SM |
| | KNFL 260256Z 00000KT 10SM CLR 01/M11 A3031 RMK AO2 SLP224 T00111111 55002 |
| 17:56 PST |  Clear | 5°C / 41°F | -11°C / 12°F | 31% | 1026 mb (30.3 in) | ENE 11 kph (ENE 6.9 mph) | - | 10SM |
| | KNFL 260156Z 06006KT 10SM CLR 05/M11 A3031 RMK AO2 SLP223 T00501106 |
| 16:56 PST |  Clear | 7°C / 45°F | -11°C / 12°F | 27% | 1027 mb (30.33 in) | NE 11 kph (NE 6.9 mph) | - | 10SM |
| | KNFL 260056Z 05006KT 10SM CLR 07/M11 A3032 RMK AO2 SLP225 T00721106 |
| 15:56 PST |  Clear | 12°C / 54°F | -10°C / 14°F | 21% | 1027 mb (30.33 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KNFL 252356Z 01005KT 10SM CLR 12/M10 A3032 RMK AO2 SLP225 T01171100 10128 20056 56007 |
| 14:56 PST |  Clear | 13°C / 55°F | -10°C / 14°F | 19% | 1027 mb (30.33 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KNFL 252256Z 34004KT 10SM CLR 13/M10 A3032 RMK AO2 SLP226 T01281100 |
| 13:56 PST |  Partly Cloudy | 12°C / 54°F | -10°C / 14°F | 21% | 1027 mb (30.33 in) | NE 6 kph (NE 3.5 mph) | - | 10SM |
| | KNFL 252156Z 04003KT 10SM FEW100 12/M10 A3032 RMK AO2 SLP227 T01221100 |
| 12:56 PST |  Clear | 12°C / 54°F | -11°C / 12°F | 19% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KNFL 252056Z 00000KT 10SM CLR 12/M11 A3034 RMK AO2 SLP232 T01171106 58024 |
| 11:56 PST |  Clear | 11°C / 52°F | -10°C / 14°F | 22% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KNFL 251956Z 00000KT 10SM CLR 11/M10 A3037 RMK AO2 SLP241 T01061100 |
| 10:56 PST |  Clear | 8°C / 46°F | -10°C / 14°F | 27% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KNFL 251856Z 00000KT 10SM CLR 08/M10 A3040 RMK AO2 SLP250 T00781100 |
| 09:56 PST |  Clear | 6°C / 43°F | -10°C / 14°F | 31% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KNFL 251756Z 00000KT 10SM CLR 06/M10 A3042 RMK AO2 SLP257 T00611100 10061 21089 50005 |
| 08:56 PST |  Clear | 2°C / 36°F | -9°C / 16°F | 44% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KNFL 251656Z 00000KT 10SM CLR 02/M09 A3042 RMK AO2 SLP257 T00171089 |
| 07:56 PST |  Clear | -3°C / 27°F | -11°C / 12°F | 54% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KNFL 251556Z 00000KT 10SM CLR M03/M11 A3042 RMK AO2 SLP256 T10331106 |
| 06:56 PST |  Clear | -8°C / 18°F | -14°C / 7°F | 62% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KNFL 251456Z 00000KT 10SM CLR M08/M14 A3041 RMK AO2 SLP252 T10831139 53002 |
| 06:24 PST |  Clear | -7°C / 19°F | -11°C / 12°F | 73% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KNFL 251424Z 00000KT 10SM CLR M07/M11 A3040 RMK AO2 |
| 05:56 PST |  Clear | -6°C / 21°F | -10°C / 14°F | 74% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KNFL 251356Z AUTO 00000KT 10SM CLR M06/M10 A3039 RMK AO2 SLP248 T10611100 FZRANO TSNO |
| 04:56 PST |  Clear | -6°C / 21°F | -11°C / 12°F | 68% | 1029 mb (30.39 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KNFL 251256Z AUTO 19003KT 10SM CLR M06/M11 A3039 RMK AO2 SLP248 T10561106 FZRANO TSNO |
| 03:56 PST |  Clear | -5°C / 23°F | -11°C / 12°F | 63% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KNFL 251156Z AUTO 00000KT 10SM CLR M05/M11 A3040 RMK AO2 SLP250 T10501106 11011 21061 55000 FZRANO TSNO |
| 02:56 PST |  Clear | -5°C / 23°F | -11°C / 12°F | 63% | 1029 mb (30.39 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KNFL 251056Z AUTO 17004KT 10SM CLR M05/M11 A3040 RMK AO2 SLP249 T10501111 FZRANO TSNO |
| 01:56 PST |  Clear | -6°C / 21°F | -13°C / 9°F | 58% | 1029 mb (30.39 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KNFL 250956Z AUTO 20004KT 10SM CLR M06/M13 A3040 RMK AO2 SLP251 T10561133 FZRANO TSNO |
| 00:56 PST |  Clear | -3°C / 27°F | -13°C / 9°F | 46% | 1029 mb (30.39 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KNFL 250856Z AUTO 15003KT 10SM CLR M03/M13 A3040 RMK AO2 SLP250 T10331128 51003 FZRANO TSNO |