| 07:21 EST |  Clear | 15°C / 59°F | 13°C / 55°F | 88% | 1007 mb (29.74 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KDPL 031221Z AUTO 22003KT 10SM CLR 15/13 A2973 RMK AO2 |
| 07:01 EST |  Clear | 15°C / 59°F | 13°C / 55°F | 88% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KDPL 031201Z AUTO 00000KT 10SM CLR 15/13 A2972 RMK AO2 |
| 06:41 EST |  Clear | 15°C / 59°F | 13°C / 55°F | 88% | 1006 mb (29.71 in) | Calm | - | 10SM |
| | KDPL 031141Z AUTO 00000KT 10SM CLR 15/13 A2971 RMK AO2 |
| 06:21 EST |  Clear | 16°C / 61°F | 13°C / 55°F | 83% | 1006 mb (29.71 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KDPL 031121Z AUTO 22003KT 10SM CLR 16/13 A2970 RMK AO2 |
| 06:01 EST |  Clear | 16°C / 61°F | 13°C / 55°F | 83% | 1006 mb (29.71 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KDPL 031101Z AUTO 23004KT 10SM CLR 16/13 A2970 RMK AO2 |
| 05:41 EST |  Clear | 16°C / 61°F | 13°C / 55°F | 83% | 1006 mb (29.71 in) | SW 9 kph (SW 5.8 mph) | - | 10SM |
| | KDPL 031041Z AUTO 23005KT 10SM CLR 16/13 A2970 RMK AO2 |
| 05:21 EST |  Clear | 16°C / 61°F | 13°C / 55°F | 83% | 1005 mb (29.68 in) | Calm | - | 10SM |
| | KDPL 031021Z AUTO 00000KT 10SM CLR 16/13 A2969 RMK AO2 |
| 05:01 EST |  Clear | 17°C / 63°F | 13°C / 55°F | 77% | 1005 mb (29.68 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KDPL 031001Z AUTO 23006KT 10SM CLR 17/13 A2968 RMK AO2 |
| 04:41 EST |  Clear | 17°C / 63°F | 13°C / 55°F | 77% | 1005 mb (29.68 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KDPL 030941Z AUTO 23006KT 10SM CLR 17/13 A2968 RMK AO2 |
| 04:21 EST |  Clear | 17°C / 63°F | 13°C / 55°F | 77% | 1005 mb (29.68 in) | SSW 15 kph (SSW 9.2 mph) | - | 10SM |
| | KDPL 030921Z AUTO 24008G15KT 10SM CLR 17/13 A2967 RMK AO2 |
| 04:02 EST |  Clear | 18°C / 64°F | 13°C / 55°F | 73% | 1005 mb (29.68 in) | SSW 17 kph (SSW 10.4 mph) | - | 10SM |
| | KDPL 030902Z AUTO 24009G17KT 10SM CLR 18/13 A2967 RMK AO2 |
| 03:41 EST |  Clear | 18°C / 64°F | 14°C / 57°F | 78% | 1004 mb (29.65 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KDPL 030841Z AUTO 23010G16KT 10SM CLR 18/14 A2966 RMK AO2 |
| 03:21 EST |  Clear | 18°C / 64°F | 15°C / 59°F | 83% | 1004 mb (29.65 in) | SW 19 kph (SW 11.5 mph) | - | 10SM |
| | KDPL 030821Z AUTO 23010G18KT 10SM CLR 18/15 A2965 RMK AO2 |
| 03:01 EST |  Clear | 19°C / 66°F | 17°C / 63°F | 88% | 1004 mb (29.65 in) | Calm | - | 10SM |
| | KDPL 030801Z AUTO 00000KT 10SM CLR 19/17 A2965 RMK AO2 |
| 02:42 EST |  Clear | 19°C / 66°F | 18°C / 64°F | 94% | 1004 mb (29.65 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KDPL 030742Z AUTO 22007KT 10SM CLR 19/18 A2964 RMK AO2 |
| 02:21 EST |  Partly Cloudy | 19°C / 66°F | 18°C / 64°F | 94% | 1004 mb (29.65 in) | SW 7 kph (SW 4.6 mph) | - | 10SM |
| | KDPL 030721Z AUTO 21004KT 10SM SCT021 19/18 A2964 RMK AO2 |
| 02:01 EST |  Mostly Cloudy | 20°C / 68°F | 18°C / 64°F | 88% | 1004 mb (29.65 in) | SW 13 kph (SW 8.1 mph) | - | 10SM |
| | KDPL 030701Z AUTO 21007KT 10SM SCT019 BKN024 BKN034 20/18 A2964 RMK AO2 |
| 01:41 EST |  Overcast | 20°C / 68°F | 18°C / 64°F | 88% | 1004 mb (29.65 in) | SW 13 kph (SW 8.1 mph) | 1.02 mm (0.04 in) | 10SM |
| | KDPL 030641Z AUTO 21007G18KT 10SM SCT041 SCT047 OVC060 20/18 A2964 RMK AO2 P0004 |
| 01:21 EST |  Overcast | 21°C / 70°F | 19°C / 66°F | 88% | 1003 mb (29.62 in) | SW 19 kph (SW 11.5 mph) | 1.02 mm (0.04 in) | 10SM |
| | KDPL 030621Z AUTO 22010G19KT 10SM SCT013 SCT023 OVC060 21/19 A2962 RMK AO2 P0004 |
| 01:01 EST |  Overcast Rain | 21°C / 70°F | 20°C / 68°F | 94% | 1003 mb (29.62 in) | SW 24 kph (SW 15 mph) | 0.76 mm (0.03 in) | 4SM |
| | KDPL 030601Z AUTO 23013G22KT 4SM RA SCT014 BKN018 OVC038 21/20 A2962 RMK AO2 P0003 |
| 00:41 EST |  Overcast Fog And Mist | 21°C / 70°F | 20°C / 68°F | 94% | 1003 mb (29.62 in) | SW 20 kph (SW 12.7 mph) | 2.03 mm (0.08 in) | 5SM |
| | KDPL 030541Z AUTO 22011G19KT 5SM BR SCT013 BKN039 OVC048 21/20 A2962 RMK AO2 P0008 |
| 00:21 EST |  Overcast Light Rain | 21°C / 70°F | 21°C / 70°F | 100% | 1003 mb (29.62 in) | SW 15 kph (SW 9.2 mph) | 1.78 mm (0.07 in) | 4SM |
| | KDPL 030521Z AUTO 21008G21KT 4SM -RA SCT009 BKN019 OVC029 21/21 A2962 RMK AO2 P0007 |
| 00:01 EST |  Overcast | 21°C / 70°F | 21°C / 70°F | 100% | 1003 mb (29.62 in) | SW 11 kph (SW 6.9 mph) | - | 10SM |
| | KDPL 030501Z AUTO 21006KT 10SM SCT015 BKN027 OVC060 21/21 A2961 RMK AO2 |