| 06:56 PST |  Overcast | -2°C / 28°F | -3°C / 27°F | 93% | 1022 mb (30.18 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KRDM 021456Z 32003KT 10SM OVC006 M02/M03 A3019 RMK AO2 SLP243 T10171033 51003 |
| 05:56 PST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1022 mb (30.18 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KRDM 021356Z 33003KT 10SM OVC006 M02/M04 A3019 RMK AO2 SLP242 T10171039 |
| 04:56 PST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KRDM 021256Z AUTO 00000KT 10SM OVC008 M02/M04 A3018 RMK AO2 SLP240 T10171039 |
| 04:22 PST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1022 mb (30.18 in) | W 6 kph (W 3.5 mph) | - | 10SM |
| | KRDM 021222Z AUTO 28003KT 10SM OVC008 M02/M04 A3018 RMK AO2 |
| 03:56 PST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1022 mb (30.18 in) | Calm | - | 10SM |
| | KRDM 021156Z AUTO 00000KT 10SM OVC010 M02/M04 A3018 RMK AO2 SLP238 T10171039 11006 21017 50005 |
| 02:56 PST |  Overcast | -2°C / 28°F | -4°C / 25°F | 86% | 1022 mb (30.18 in) | NW 7 kph (NW 4.6 mph) | - | 10SM |
| | KRDM 021056Z AUTO 30004KT 10SM OVC010 M02/M04 A3018 RMK AO2 SLP237 T10171039 |
| 01:56 PST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1022 mb (30.18 in) | NW 9 kph (NW 5.8 mph) | - | 10SM |
| | KRDM 020956Z AUTO 32005KT 10SM OVC010 M01/M03 A3017 RMK AO2 SLP234 T10111033 |
| 00:56 PST |  Overcast | -1°C / 30°F | -3°C / 27°F | 86% | 1021 mb (30.15 in) | NW 11 kph (NW 6.9 mph) | - | 10SM |
| | KRDM 020856Z AUTO 32006KT 10SM OVC012 M01/M03 A3016 RMK AO2 SLP232 T10111033 53000 |