| 12:56 PST |  Mostly Cloudy | 1°C / 34°F | -8°C / 18°F | 51% | 1012 mb (29.88 in) | NNW 19 kph (NNW 11.5 mph) | - | 10SM |
| | KNFL 222056Z 34010KT 10SM FEW050 SCT100 BKN200 01/M08 A2987 RMK AO2 SLP091 ACSL DSNT S IR// 60010 T00111083 58004 |
| 11:56 PST |  Partly Cloudy | 1°C / 34°F | -8°C / 18°F | 51% | 1012 mb (29.88 in) | NNW 19 kph (NNW 11.5 mph) | - | 10SM |
| | KNFL 221956Z 33010KT 10SM FEW050 SCT100 SCT200 01/M08 A2988 RMK AO2 UPB17E26 SLP092 ACSL DSNT S IR// T00061083 |
| 10:56 PST |  Partly Cloudy | -1°C / 30°F | -8°C / 18°F | 59% | 1012 mb (29.88 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KNFL 221856Z 32010KT 10SM FEW050 SCT090 M01/M08 A2989 RMK AO2 SLP096 T10061083 PNO |
| 09:56 PST |  Partly Cloudy | -2°C / 28°F | -8°C / 18°F | 64% | 1012 mb (29.88 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KNFL 221756Z 31010KT 10SM FEW050 SCT090 M02/M08 A2989 RMK AO2 SLP095 IR// 6//// T10171083 10000 21033 51019 PNO |
| 08:56 PST |  Partly Cloudy | -3°C / 27°F | -8°C / 18°F | 69% | 1012 mb (29.88 in) | NW 22 kph (NW 13.8 mph) | - | 10SM |
| | KNFL 221656Z 31012KT 10SM FEW055 SCT080 SCT100 M03/M08 A2987 RMK AO2 SLP090 IR// T10281083 PNO |
| 07:56 PST |  Mostly Cloudy | -2°C / 28°F | -8°C / 18°F | 64% | 1011 mb (29.85 in) | NW 32 kph (NW 19.6 mph) | - | 10SM |
| | KNFL 221556Z 32017KT 10SM SCT060 BKN080 BKN100 M02/M08 A2985 RMK AO2 SLP083 SNE16 T10221078 PNO |
| 07:23 PST |  Mostly Cloudy | -2°C / 28°F | -6°C / 21°F | 74% | 1010 mb (29.83 in) | NW 32 kph (NW 19.6 mph) | - | 10SM |
| | KNFL 221523Z 32017KT 10SM SCT030 BKN045 BKN080 BKN150 M02/M06 A2983 RMK AO2 SNE16 PNO |
| 07:13 PST |  Overcast Light Snow | -1°C / 30°F | -6°C / 21°F | 69% | 1010 mb (29.83 in) | NW 26 kph (NW 16.1 mph) | - | 9SM |
| | KNFL 221513Z 32014G22KT 9SM -SN BKN032 BKN043 OVC065 M01/M06 A2982 RMK AO2 PNO |
| 07:03 PST |  Overcast Light Snow | -1°C / 30°F | -4°C / 25°F | 80% | 1010 mb (29.83 in) | NNW 24 kph (NNW 15 mph) | - | 6SM |
| | KNFL 221503Z 33013KT 6SM -SN OVC026 M01/M04 A2983 RMK AO2 PNO |
| 06:56 PST |  Overcast Light Snow | -1°C / 30°F | -4°C / 25°F | 80% | 1010 mb (29.83 in) | NNW 26 kph (NNW 16.1 mph) | - | 3SM |
| | KNFL 221456Z 33014KT 3SM -SN FEW005 SCT021 OVC038 M01/M04 A2982 RMK AO2 SLP076 6//// T10111039 53021 PNO |
| 06:28 PST |  Overcast Light Snow | -1°C / 30°F | -3°C / 27°F | 86% | 1009 mb (29.8 in) | NNW 26 kph (NNW 16.1 mph) | - | 3SM |
| | KNFL 221428Z 33014KT 3SM -SN FEW005 SCT021 OVC038 M01/M03 A2981 RMK AO2 PNO |
| 06:12 PST |  Overcast Light Snow | -1°C / 30°F | -2°C / 28°F | 93% | 1009 mb (29.8 in) | NNW 20 kph (NNW 12.7 mph) | - | 3SM |
| | KNFL 221412Z AUTO 33011KT 3SM -SN BR SCT023 BKN033 OVC060 M01/M02 A2980 RMK AO2 FZRANO TSNO PNO |
| 06:02 PST |  Overcast Light Snow | -1°C / 30°F | -2°C / 28°F | 93% | 1009 mb (29.8 in) | NNW 13 kph (NNW 8.1 mph) | - | 2 1/2SM |
| | KNFL 221402Z AUTO 33007KT 2 1/2SM -SN BR SCT019 BKN027 OVC042 M01/M02 A2979 RMK AO2 FZRANO TSNO PNO |
| 05:56 PST |  Overcast Light Snow | -1°C / 30°F | -2°C / 28°F | 93% | 1009 mb (29.8 in) | NW 13 kph (NW 8.1 mph) | - | 3SM |
| | KNFL 221356Z AUTO 32007KT 3SM -SN BR FEW019 BKN034 OVC042 M01/M02 A2979 RMK AO2 SLP066 T10061022 FZRANO TSNO PNO |
| 04:56 PST |  Overcast Light Snow | -1°C / 30°F | -2°C / 28°F | 93% | 1008 mb (29.77 in) | W 11 kph (W 6.9 mph) | - | 3SM |
| | KNFL 221256Z AUTO 28006KT 3SM -SN BR SCT018 BKN038 OVC050 M01/M02 A2976 RMK AO2 SNB43 SLP058 T10111022 FZRANO TSNO PNO $ |
| 03:56 PST |  Clear Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1007 mb (29.74 in) | Calm | - | 6SM |
| | KNFL 221156Z AUTO 00000KT 6SM BR CLR M03/M04 A2975 RMK AO2 SLP055 6//// 7//// T10331044 10006 21044 50003 FZRANO TSNO PNO $ |
| 02:56 PST |  Partly Cloudy Fog And Mist | -3°C / 27°F | -4°C / 25°F | 93% | 1008 mb (29.77 in) | Calm | - | 3SM |
| | KNFL 221056Z AUTO 00000KT 3SM BR SCT033 M03/M04 A2976 RMK AO2 SLP057 T10281039 FZRANO TSNO PNO $ |
| 02:46 PST |  Mostly Cloudy Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1008 mb (29.77 in) | SSW 7 kph (SSW 4.6 mph) | - | 4SM |
| | KNFL 221046Z AUTO 24004KT 4SM BR SCT012 BKN033 M02/M03 A2976 RMK AO2 FZRANO TSNO PNO $ |
| 02:24 PST |  Mostly Cloudy Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1008 mb (29.77 in) | S 9 kph (S 5.8 mph) | - | 3SM |
| | KNFL 221024Z AUTO 18005KT 3SM BR BKN014 M02/M03 A2976 RMK AO2 FZRANO TSNO PNO $ |
| 02:15 PST |  Mostly Cloudy Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1008 mb (29.77 in) | Calm | - | 4SM |
| | KNFL 221015Z AUTO 00000KT 4SM BR BKN015 BKN120 M02/M03 A2976 RMK AO2 FZRANO TSNO PNO $ |
| 01:56 PST |  Partly Cloudy Fog And Mist | -2°C / 28°F | -3°C / 27°F | 93% | 1007 mb (29.74 in) | SSW 6 kph (SSW 3.5 mph) | - | 3SM |
| | KNFL 220956Z AUTO 24003KT 3SM BR SCT120 M02/M03 A2975 RMK AO2 SLP054 T10221028 FZRANO TSNO PNO $ |
| 01:26 PST |  Partly Cloudy Fog And Mist | -2°C / 28°F | -2°C / 28°F | 100% | 1007 mb (29.74 in) | SW 6 kph (SW 3.5 mph) | - | 4SM |
| | KNFL 220926Z AUTO 22003KT 4SM BR FEW019 SCT120 M02/M02 A2975 RMK AO2 FZRANO TSNO PNO $ |
| 01:14 PST |  Mostly Cloudy Fog And Mist | -1°C / 30°F | -2°C / 28°F | 93% | 1007 mb (29.74 in) | WNW 9 kph (WNW 5.8 mph) | - | 4SM |
| | KNFL 220914Z AUTO 29005KT 4SM BR BKN021 M01/M02 A2974 RMK AO2 FZRANO TSNO PNO $ |
| 01:06 PST |  Partly Cloudy Fog And Mist | -2°C / 28°F | -2°C / 28°F | 100% | 1007 mb (29.74 in) | S 6 kph (S 3.5 mph) | - | 4SM |
| | KNFL 220906Z AUTO 17003KT 4SM BR SCT021 M02/M02 A2975 RMK AO2 FZRANO TSNO PNO $ |
| 00:56 PST |  Mostly Cloudy Fog And Mist | -2°C / 28°F | -2°C / 28°F | 100% | 1007 mb (29.74 in) | SE 6 kph (SE 3.5 mph) | - | 3SM |
| | KNFL 220856Z AUTO 14003KT 3SM BR BKN021 M02/M02 A2974 RMK AO2 SLP052 6//// T10171022 56009 FZRANO TSNO PNO $ |
| 00:19 PST |  Partly Cloudy Fog And Mist | -2°C / 28°F | -2°C / 28°F | 100% | 1007 mb (29.74 in) | S 9 kph (S 5.8 mph) | - | 3SM |
| | KNFL 220819Z AUTO 18005KT 3SM BR SCT003 M02/M02 A2974 RMK AO2 FZRANO TSNO PNO $ |