| 19:56 PST |  Clear Fog And Mist | -11°C / 12°F | -13°C / 9°F | 85% | 1028 mb (30.36 in) | S 7 kph (S 4.6 mph) | - | 4SM |
| | KNFL 250356Z 17004KT 4SM BR CLR M11/M13 A3036 RMK AO2 SLP237 T11111128 |
| 18:56 PST |  Clear | -10°C / 14°F | -12°C / 10°F | 85% | 1028 mb (30.36 in) | Calm | - | 8SM |
| | KNFL 250256Z 00000KT 8SM CLR M10/M12 A3035 RMK AO2 SLP236 T11001117 53003 |
| 17:56 PST |  Mostly Cloudy | -8°C / 18°F | -10°C / 14°F | 86% | 1028 mb (30.36 in) | Calm | - | 9SM |
| | KNFL 250156Z 00000KT 9SM SCT200 BKN300 M08/M10 A3035 RMK AO2 SLP234 T10831100 |
| 16:56 PST |  Mostly Cloudy | -7°C / 19°F | -9°C / 16°F | 86% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KNFL 250056Z 00000KT 10SM SCT200 BKN300 M07/M09 A3034 RMK AO2 SLP231 T10671089 |
| 15:56 PST |  Overcast | -3°C / 27°F | -8°C / 18°F | 69% | 1027 mb (30.33 in) | Calm | - | 10SM |
| | KNFL 242356Z 00000KT 10SM BKN200 OVC300 M03/M08 A3034 RMK AO2 SLP233 T10331083 11011 21072 56006 |
| 14:56 PST |  Overcast | -2°C / 28°F | -8°C / 18°F | 64% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KNFL 242256Z 00000KT 10SM BKN200 OVC300 M02/M08 A3035 RMK AO2 SLP234 T10171078 |
| 13:56 PST |  Overcast | -2°C / 28°F | -8°C / 18°F | 64% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KNFL 242156Z 00000KT 10SM BKN200 OVC300 M02/M08 A3035 RMK AO2 SLP236 T10171083 |
| 12:56 PST |  Clear | -3°C / 27°F | -8°C / 18°F | 69% | 1028 mb (30.36 in) | Calm | - | 10SM |
| | KNFL 242056Z 00000KT 10SM CLR M03/M08 A3036 RMK AO2 SLP239 T10281083 58014 |
| 11:56 PST |  Overcast | -4°C / 25°F | -9°C / 16°F | 69% | 1029 mb (30.39 in) | NE 6 kph (NE 3.5 mph) | - | 10SM |
| | KNFL 241956Z 03003KT 10SM BKN200 OVC300 M04/M09 A3038 RMK AO2 SLP244 T10391094 |
| 10:56 PST |  Overcast | -4°C / 25°F | -9°C / 16°F | 69% | 1030 mb (30.42 in) | Calm | - | 10SM |
| | KNFL 241856Z 00000KT 10SM FEW080 BKN200 OVC300 M04/M09 A3041 RMK AO2 SLP251 T10441094 |
| 09:56 PST |  Clear | -7°C / 19°F | -9°C / 16°F | 86% | 1030 mb (30.42 in) | Calm | - | 8SM |
| | KNFL 241756Z 00000KT 8SM CLR M07/M09 A3041 RMK AO2 SLP253 T10671094 11067 21167 53003 |
| 08:56 PST |  Overcast | -9°C / 16°F | -12°C / 10°F | 79% | 1030 mb (30.42 in) | Calm | - | 7SM |
| | KNFL 241656Z 00000KT 7SM FEW001 SCT060 BKN200 OVC300 M09/M12 A3041 RMK AO2 SLP252 T10941117 |
| 07:56 PST |  Overcast | -13°C / 9°F | -15°C / 5°F | 85% | 1029 mb (30.39 in) | SW 6 kph (SW 3.5 mph) | - | 8SM |
| | KNFL 241556Z 21003KT 8SM FEW001 BKN200 OVC300 M13/M15 A3040 RMK AO2 SLP249 FG VC E-S-SW T11281150 |
| 06:56 PST |  Mostly Cloudy Fog And Mist | -13°C / 9°F | -16°C / 3°F | 78% | 1029 mb (30.39 in) | SW 6 kph (SW 3.5 mph) | - | 6SM |
| | KNFL 241456Z 21003KT 6SM BR SCT001 BKN009 M13/M16 A3040 RMK AO2 SLP250 T11331156 50007 |
| 06:24 PST |  Mostly Cloudy | -14°C / 7°F | -17°C / 1°F | 78% | 1029 mb (30.39 in) | SW 9 kph (SW 5.8 mph) | - | 7SM |
| | KNFL 241424Z 21005KT 7SM SCT001 BKN009 M14/M17 A3040 RMK AO2 |
| 06:21 PST |  Mostly Cloudy | -14°C / 7°F | -17°C / 1°F | 78% | 1029 mb (30.39 in) | S 9 kph (S 5.8 mph) | - | 7SM |
| | KNFL 241421Z AUTO 19005KT 7SM SCT001 BKN009 M14/M17 A3040 RMK AO2 |
| 05:56 PST |  Mostly Cloudy Hazy | -16°C / 3°F | -18°C / 0°F | 85% | 1029 mb (30.39 in) | Calm | - | 1/4SM |
| | KNFL 241356Z AUTO 00000KT 1/4SM HZ FEW001 BKN009 M16/M18 A3040 RMK AO2 SLP250 T11561183 FZRANO TSNO |
| 05:50 PST |  Obscured Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1029 mb (30.39 in) | Calm | - | 1SM |
| | KNFL 241350Z AUTO 00000KT 1SM BR VV009 M16/M18 A3040 RMK AO2 FZRANO TSNO |
| 05:48 PST |  Partly Cloudy Fog And Mist | -16°C / 3°F | -18°C / 0°F | 85% | 1029 mb (30.39 in) | Calm | - | 2 1/2SM |
| | KNFL 241348Z AUTO 00000KT 2 1/2SM BR FEW009 M16/M18 A3040 RMK AO2 FZRANO TSNO |
| 04:56 PST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KNFL 241256Z AUTO 00000KT 10SM CLR M14/M17 A3039 RMK AO2 SLP246 T11441167 FZRANO TSNO |
| 03:56 PST |  Clear | -16°C / 3°F | -18°C / 0°F | 85% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KNFL 241156Z AUTO 00000KT 10SM CLR M16/M18 A3038 RMK AO2 SLP243 7//// T11561178 11111 21156 58001 FZRANO TSNO |
| 02:56 PST |  Clear | -14°C / 7°F | -17°C / 1°F | 78% | 1028 mb (30.36 in) | ENE 7 kph (ENE 4.6 mph) | - | 10SM |
| | KNFL 241056Z AUTO 07004KT 10SM CLR M14/M17 A3037 RMK AO2 SLP242 T11441167 FZRANO TSNO |
| 01:56 PST |  Clear | -13°C / 9°F | -16°C / 3°F | 78% | 1029 mb (30.39 in) | Calm | - | 10SM |
| | KNFL 240956Z AUTO 00000KT 10SM CLR M13/M16 A3038 RMK AO2 SLP244 T11331156 FZRANO TSNO |
| 00:56 PST |  Clear | -13°C / 9°F | -14°C / 7°F | 92% | 1029 mb (30.39 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KNFL 240856Z AUTO 19003KT 10SM CLR M13/M14 A3038 RMK AO2 SLP243 T11281144 50000 FZRANO TSNO |