| 03:51 EST |  Overcast | 5°C / 41°F | 2°C / 36°F | 81% | 1013 mb (29.91 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KPWM 150851Z 20003KT 10SM FEW019 OVC029 05/02 A2991 RMK AO2 SLP128 T00500022 55016 |
| 03:46 EST |  Overcast | 5°C / 41°F | 2°C / 36°F | 81% | 1013 mb (29.91 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KPWM 150846Z 19003KT 10SM SCT021 OVC029 05/02 A2991 RMK AO2 |
| 02:59 EST |  Overcast | 4°C / 39°F | 2°C / 36°F | 87% | 1013 mb (29.91 in) | S 6 kph (S 3.5 mph) | - | 10SM |
| | KPWM 150759Z 18003KT 10SM SCT021 OVC035 04/02 A2991 RMK AO2 CIG 023 RWY11-29 |
| 02:51 EST |  Overcast | 4°C / 39°F | 2°C / 36°F | 87% | 1013 mb (29.91 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KPWM 150751Z 17004KT 10SM BKN023 BKN028 OVC035 04/02 A2991 RMK AO2 SLP128 T00390017 |
| 02:44 EST |  Overcast | 3°C / 37°F | 2°C / 36°F | 93% | 1013 mb (29.91 in) | S 7 kph (S 4.6 mph) | - | 10SM |
| | KPWM 150744Z 17004KT 10SM SCT023 SCT028 OVC035 03/02 A2991 RMK AO2 CIG 028 RWY11-29 |
| 02:15 EST |  Overcast | 3°C / 37°F | 1°C / 34°F | 87% | 1013 mb (29.91 in) | SSE 7 kph (SSE 4.6 mph) | - | 10SM |
| | KPWM 150715Z 15004KT 10SM OVC028 03/01 A2992 RMK AO2 PRESFR |
| 01:51 EST |  Overcast | 3°C / 37°F | 1°C / 34°F | 87% | 1014 mb (29.94 in) | Calm | - | 10SM |
| | KPWM 150651Z 00000KT 10SM OVC032 03/01 A2995 RMK AO2 SLP144 T00280006 |
| 00:51 EST |  Overcast | 2°C / 36°F | 0°C / 32°F | 87% | 1014 mb (29.94 in) | Calm | - | 8SM |
| | KPWM 150551Z 00000KT 8SM OVC036 02/00 A2995 RMK AO2 SLP144 T00170000 10022 20000 58021 |
| 00:03 EST |  Overcast | 1°C / 34°F | 0°C / 32°F | 93% | 1015 mb (29.97 in) | Calm | - | 10SM |
| | KPWM 150503Z 00000KT 10SM SCT020 OVC032 01/00 A2998 RMK AO2 |