| 13:52 EST |  Overcast | 8°C / 46°F | 2°C / 36°F | 66% | 1004 mb (29.65 in) | WNW 30 kph (WNW 18.4 mph) | 0.00 mm (0.00 in) | 10SM |
| | KDCA 271852Z 29016G23KT 10SM SCT025 BKN040 OVC100 08/02 A2965 RMK AO2 PK WND 32037/1803 RAE1754B15E43 SLP040 P0000 T00780022 |
| 12:52 EST |  Mostly Cloudy Light Rain | 9°C / 48°F | 1°C / 34°F | 58% | 1004 mb (29.65 in) | WNW 32 kph (WNW 19.6 mph) | 0.00 mm (0.00 in) | 10SM |
| | KDCA 271752Z 29017G26KT 10SM -RA SCT033 BKN043 BKN055 09/01 A2965 RMK AO2 PK WND 30034/1731 RAB29 SLP038 P0000 60000 T00890006 10100 20061 56015 |
| 11:52 EST |  Mostly Cloudy | 9°C / 48°F | 0°C / 32°F | 54% | 1004 mb (29.65 in) | WNW 35 kph (WNW 21.9 mph) | - | 10SM |
| | KDCA 271652Z 29019G28KT 10SM SCT045 BKN100 BKN250 09/00 A2965 RMK AO2 PK WND 30029/1605 SLP042 T00940000 |
| 10:52 EST |  Mostly Cloudy | 8°C / 46°F | 0°C / 32°F | 57% | 1005 mb (29.68 in) | WNW 20 kph (WNW 12.7 mph) | - | 10SM |
| | KDCA 271552Z 29011G22KT 10SM SCT045 BKN100 BKN250 08/00 A2968 RMK AO2 SLP049 T00830000 |
| 09:52 EST |  Mostly Cloudy | 8°C / 46°F | 0°C / 32°F | 57% | 1005 mb (29.68 in) | WNW 22 kph (WNW 13.8 mph) | - | 10SM |
| | KDCA 271452Z 29012G21KT 10SM SCT045 BKN100 BKN250 08/00 A2969 RMK AO2 SLP053 T00830000 57003 |
| 08:52 EST |  Mostly Cloudy | 7°C / 45°F | -1°C / 30°F | 57% | 1005 mb (29.68 in) | W 17 kph (W 10.4 mph) | - | 10SM |
| | KDCA 271352Z 28009KT 10SM SCT055 BKN110 BKN250 07/M01 A2969 RMK AO2 SLP053 T00721006 |
| 07:52 EST |  Mostly Cloudy | 6°C / 43°F | -2°C / 28°F | 57% | 1006 mb (29.71 in) | WNW 11 kph (WNW 6.9 mph) | - | 10SM |
| | KDCA 271252Z 29006KT 10SM SCT055 BKN110 BKN250 06/M02 A2970 RMK AO2 SLP055 T00611017 |
| 06:52 EST |  Mostly Cloudy | 6°C / 43°F | -2°C / 28°F | 57% | 1006 mb (29.71 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KDCA 271152Z 32007KT 10SM SCT050 BKN120 BKN250 06/M02 A2970 RMK AO2 SLP056 60003 70016 T00611017 10083 20061 51004 |
| 05:52 EST |  Overcast | 7°C / 45°F | -2°C / 28°F | 53% | 1006 mb (29.71 in) | NW 17 kph (NW 10.4 mph) | - | 10SM |
| | KDCA 271052Z 32009KT 10SM OVC110 07/M02 A2970 RMK AO2 SLP055 T00671017 |
| 04:52 EST |  Overcast | 7°C / 45°F | -2°C / 28°F | 53% | 1005 mb (29.68 in) | NW 28 kph (NW 17.3 mph) | - | 10SM |
| | KDCA 270952Z 32015G25KT 10SM OVC085 07/M02 A2969 RMK AO2 SLP053 T00671017 |
| 03:52 EST |  Overcast | 7°C / 45°F | -1°C / 30°F | 57% | 1005 mb (29.68 in) | NW 22 kph (NW 13.8 mph) | 0.00 mm (0.00 in) | 10SM |
| | KDCA 270852Z 32012G20KT 10SM BKN043 OVC060 07/M01 A2969 RMK AO2 PK WND 35026/0753 RAE40 SLP052 P0000 60003 T00671006 58001 |
| 03:08 EST |  Overcast Light Rain | 7°C / 45°F | 1°C / 34°F | 66% | 1006 mb (29.71 in) | NNW 32 kph (NNW 19.6 mph) | 0.00 mm (0.00 in) | 10SM |
| | KDCA 270808Z 34017G25KT 10SM -RA SCT025 BKN032 OVC044 07/01 A2970 RMK AO2 PK WND 35026/0753 P0000 |
| 02:52 EST |  Overcast Light Rain | 6°C / 43°F | 2°C / 36°F | 76% | 1006 mb (29.71 in) | N 39 kph (N 24.2 mph) | 0.76 mm (0.03 in) | 10SM |
| | KDCA 270752Z 35021G27KT 10SM -RA BKN025 OVC033 06/02 A2970 RMK AO2 PK WND 34027/0751 SLP056 P0003 T00610017 |
| 02:04 EST |  Overcast Light Rain | 7°C / 45°F | 2°C / 36°F | 71% | 1006 mb (29.71 in) | NNW 37 kph (NNW 23 mph) | 0.00 mm (0.00 in) | 10SM |
| | KDCA 270704Z 33020G26KT 10SM -RA BKN029 BKN037 OVC049 07/02 A2970 RMK AO2 PK WND 32026/0655 P0000 |
| 01:52 EST |  Overcast Light Rain | 8°C / 46°F | 2°C / 36°F | 66% | 1005 mb (29.68 in) | NNW 32 kph (NNW 19.6 mph) | 0.00 mm (0.00 in) | 10SM |
| | KDCA 270652Z 33017G24KT 10SM -RA BKN035 BKN049 OVC060 08/02 A2969 RMK AO2 PK WND 34026/0555 RAB46 SLP055 P0000 T00780017 |
| 00:52 EST |  Overcast | 8°C / 46°F | 3°C / 37°F | 71% | 1005 mb (29.68 in) | NNW 28 kph (NNW 17.3 mph) | 0.00 mm (0.00 in) | 10SM |
| | KDCA 270552Z 34015G26KT 10SM OVC055 08/03 A2969 RMK AO2 PK WND 33026/0552 RAE14 SLP053 P0000 60013 T00830028 10100 20078 58012 |