| 04:56 EST |  Overcast Rain | 7°C / 45°F | 7°C / 45°F | 100% | 999 mb (29.5 in) | N 22 kph (N 13.8 mph) | 4.32 mm (0.17 in) | 5SM |
| | KGON 270956Z AUTO 36012KT 5SM RA BR BKN038 BKN049 OVC060 07/07 A2950 RMK AO2 SLP988 P0017 T00720067 |
| 04:13 EST |  Overcast Rain | 7°C / 45°F | 7°C / 45°F | 100% | 1000 mb (29.53 in) | NNW 17 kph (NNW 10.4 mph) | 1.27 mm (0.05 in) | 4SM |
| | KGON 270913Z AUTO 34009KT 4SM RA BR FEW013 SCT030 OVC041 07/07 A2954 RMK AO2 P0005 |
| 03:56 EST |  Overcast Rain | 7°C / 45°F | 7°C / 45°F | 100% | 1000 mb (29.53 in) | N 17 kph (N 10.4 mph) | 1.02 mm (0.04 in) | 5SM |
| | KGON 270856Z AUTO 35009KT 5SM RA BR SCT010 BKN013 OVC037 07/07 A2954 RMK AO2 SLP001 P0004 60014 T00720067 58018 |
| 03:46 EST |  Overcast Rain | 7°C / 45°F | 7°C / 45°F | 100% | 1000 mb (29.53 in) | NNW 20 kph (NNW 12.7 mph) | 0.51 mm (0.02 in) | 6SM |
| | KGON 270846Z AUTO 34011KT 6SM RA BR BKN010 OVC031 07/07 A2954 RMK AO2 P0002 |
| 03:39 EST |  Overcast Light Rain | 8°C / 46°F | 7°C / 45°F | 93% | 1000 mb (29.53 in) | NNW 19 kph (NNW 11.5 mph) | 0.25 mm (0.01 in) | 9SM |
| | KGON 270839Z AUTO 34010KT 9SM -RA BKN008 BKN013 OVC039 08/07 A2954 RMK AO2 CIG 006V013 P0001 |
| 02:56 EST |  Overcast Light Rain | 8°C / 46°F | 7°C / 45°F | 93% | 1001 mb (29.56 in) | N 24 kph (N 15 mph) | 1.02 mm (0.04 in) | 5SM |
| | KGON 270756Z AUTO 36013KT 5SM -RA BR FEW008 BKN034 OVC043 08/07 A2955 RMK AO2 SLP005 P0004 T00780072 |
| 02:28 EST |  Overcast Light Rain | 8°C / 46°F | 8°C / 46°F | 100% | 1001 mb (29.56 in) | N 11 kph (N 6.9 mph) | 0.51 mm (0.02 in) | 7SM |
| | KGON 270728Z AUTO 36006KT 7SM -RA SCT016 BKN050 OVC060 08/08 A2957 RMK AO2 P0002 |
| 02:09 EST |  Overcast Light Rain | 8°C / 46°F | 8°C / 46°F | 100% | 1002 mb (29.59 in) | NNE 15 kph (NNE 9.2 mph) | 0.51 mm (0.02 in) | 5SM |
| | KGON 270709Z AUTO 02008KT 5SM -RA BR FEW008 BKN016 OVC060 08/08 A2958 RMK AO2 P0002 |
| 01:56 EST |  Overcast Light Rain | 8°C / 46°F | 8°C / 46°F | 100% | 1002 mb (29.59 in) | NE 11 kph (NE 6.9 mph) | 1.52 mm (0.06 in) | 5SM |
| | KGON 270656Z AUTO 04006KT 5SM -RA BR OVC012 08/08 A2959 RMK AO2 SLP020 P0006 T00830078 |
| 00:56 EST |  Overcast Light Rain | 8°C / 46°F | 8°C / 46°F | 100% | 1002 mb (29.59 in) | NNE 19 kph (NNE 11.5 mph) | 0.51 mm (0.02 in) | 6SM |
| | KGON 270556Z AUTO 02010KT 6SM -RA BR OVC010 08/08 A2959 RMK AO2 RAB24 CIG 008V014 SLP019 P0002 60002 T00830078 10100 20083 58037 |
| 00:32 EST |  Overcast Rain | 9°C / 48°F | 8°C / 46°F | 94% | 1003 mb (29.62 in) | N 22 kph (N 13.8 mph) | 0.25 mm (0.01 in) | 7SM |
| | KGON 270532Z AUTO 01012KT 7SM RA OVC010 09/08 A2961 RMK AO2 RAB24 P0001 |