| 11:52 EST |  Overcast Fog And Mist | 10°C / 50°F | 8°C / 46°F | 88% | 1016 mb (30 in) | SSE 6 kph (SSE 3.5 mph) | - | 6SM |
| | KDCA 151652Z 16003KT 6SM BR FEW010 SCT090 SCT130 OVC230 10/08 A2999 RMK AO2 SLP154 T01000078 |
| 11:00 EST |  Overcast Fog And Mist | 10°C / 50°F | 8°C / 46°F | 88% | 1016 mb (30 in) | S 7 kph (S 4.6 mph) | - | 5SM |
| | KDCA 151600Z 17004KT 5SM BR SCT008 SCT130 OVC250 10/08 A2999 RMK AO2 |
| 10:52 EST |  Overcast Fog And Mist | 10°C / 50°F | 8°C / 46°F | 88% | 1016 mb (30 in) | SSE 7 kph (SSE 4.6 mph) | - | 5SM |
| | KDCA 151552Z 16004KT 5SM BR BKN008 BKN130 OVC250 10/08 A2999 RMK AO2 SLP156 BKN008 V SCT T01000078 |
| 10:19 EST |  Overcast Fog And Mist | 9°C / 48°F | 7°C / 45°F | 87% | 1016 mb (30 in) | S 7 kph (S 4.6 mph) | - | 4SM |
| | KDCA 151519Z 17004KT 4SM BR BKN008 OVC015 09/07 A2999 RMK AO2 |
| 09:52 EST |  Overcast Fog And Mist | 10°C / 50°F | 8°C / 46°F | 88% | 1016 mb (30 in) | Calm | - | 6SM |
| | KDCA 151452Z 00000KT 6SM BR BKN007 OVC015 10/08 A2999 RMK AO2 SLP154 T01000078 51013 |
| 08:52 EST |  Overcast Fog And Mist | 9°C / 48°F | 8°C / 46°F | 94% | 1015 mb (29.97 in) | S 6 kph (S 3.5 mph) | - | 5SM |
| | KDCA 151352Z 19003KT 5SM BR OVC006 09/08 A2998 RMK AO2 SLP152 T00940078 |
| 08:29 EST |  Overcast Fog And Mist | 9°C / 48°F | 7°C / 45°F | 87% | 1015 mb (29.97 in) | S 6 kph (S 3.5 mph) | - | 3SM |
| | KDCA 151329Z 18003KT 3SM BR OVC006 09/07 A2997 RMK AO2 VIS NW-NE 3 |
| 08:23 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1015 mb (29.97 in) | S 7 kph (S 4.6 mph) | - | 2 1/2SM |
| | KDCA 151323Z 18004KT 2 1/2SM BR OVC004 08/07 A2997 RMK AO2 VIS NW-NE 3 |
| 07:52 EST |  Overcast Fog And Mist | 9°C / 48°F | 7°C / 45°F | 87% | 1015 mb (29.97 in) | SSW 6 kph (SSW 3.5 mph) | - | 3SM |
| | KDCA 151252Z 24003KT 3SM BR OVC004 09/07 A2996 RMK AO2 SLP145 VIS SE-SW 2 1/2 T00890072 |
| 06:52 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1014 mb (29.94 in) | Calm | - | 5SM |
| | KDCA 151152Z 00000KT 5SM BR OVC004 08/07 A2995 RMK AO2 SLP141 T00830067 10083 20072 53007 |
| 05:52 EST |  Overcast Fog And Mist | 8°C / 46°F | 7°C / 45°F | 93% | 1014 mb (29.94 in) | S 9 kph (S 5.8 mph) | - | 5SM |
| | KDCA 151052Z 18005KT 5SM BR OVC006 08/07 A2994 RMK AO2 SLP138 T00830067 |
| 04:52 EST |  Overcast Fog And Mist | 8°C / 46°F | 6°C / 43°F | 87% | 1014 mb (29.94 in) | S 6 kph (S 3.5 mph) | - | 6SM |
| | KDCA 150952Z 19003KT 6SM BR OVC006 08/06 A2993 RMK AO2 SLP135 T00780061 |
| 03:52 EST |  Overcast Fog And Mist | 7°C / 45°F | 6°C / 43°F | 93% | 1014 mb (29.94 in) | SSE 7 kph (SSE 4.6 mph) | - | 6SM |
| | KDCA 150852Z 20004KT 6SM BR OVC006 07/06 A2993 RMK AO2 SLP134 T00720061 58005 |
| 02:52 EST |  Overcast Fog And Mist | 7°C / 45°F | 6°C / 43°F | 93% | 1014 mb (29.94 in) | S 13 kph (S 8.1 mph) | - | 6SM |
| | KDCA 150752Z 19007KT 6SM BR OVC006 07/06 A2994 RMK AO2 SLP139 T00720056 |
| 01:52 EST |  Overcast | 8°C / 46°F | 6°C / 43°F | 87% | 1014 mb (29.94 in) | S 9 kph (S 5.8 mph) | - | 8SM |
| | KDCA 150652Z 19005KT 8SM OVC006 08/06 A2994 RMK AO2 SLP138 T00830061 |