| 17:52 EST |  Mostly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1029 mb (30.39 in) | W 11 kph (W 6.9 mph) | - | 10SM |
| | KDCA 062252Z 28006KT 10SM BKN200 02/M07 A3039 RMK AO2 SLP291 T00171067 |
| 16:52 EST |  Mostly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1029 mb (30.39 in) | WNW 13 kph (WNW 8.1 mph) | - | 10SM |
| | KDCA 062152Z 29007KT 10SM BKN200 02/M07 A3038 RMK AO2 SLP288 T00171067 |
| 15:52 EST |  Mostly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1028 mb (30.36 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KDCA 062052Z 28004KT 10SM BKN200 02/M07 A3036 RMK AO2 SLP279 T00221067 55007 |
| 14:52 EST |  Mostly Cloudy | 3°C / 37°F | -7°C / 19°F | 48% | 1028 mb (30.36 in) | Variable 11 kph (Variable 6.9 mph) | - | 10SM |
| | KDCA 061952Z VRB06KT 10SM BKN250 03/M07 A3035 RMK AO2 SLP276 T00281067 |
| 13:52 EST |  Mostly Cloudy | 3°C / 37°F | -7°C / 19°F | 48% | 1028 mb (30.36 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KDCA 061852Z 33004KT 10SM FEW040 BKN250 03/M07 A3035 RMK AO2 SLP276 T00331067 |
| 12:52 EST |  Mostly Cloudy | 3°C / 37°F | -6°C / 21°F | 52% | 1029 mb (30.39 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KDCA 061752Z 32007KT 10SM FEW038 BKN250 03/M06 A3038 RMK AO2 SLP286 T00331061 10033 21006 58009 |
| 11:52 EST |  Mostly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1029 mb (30.39 in) | WNW 13 kph (WNW 8.1 mph) | - | 10SM |
| | KDCA 061652Z 29007KT 10SM FEW030 BKN250 02/M07 A3039 RMK AO2 SLP291 T00221067 |
| 10:52 EST |  Partly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1030 mb (30.42 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KDCA 061552Z 33007KT 10SM FEW025 SCT250 02/M07 A3041 RMK AO2 SLP297 T00221067 |
| 09:52 EST |  Partly Cloudy | 2°C / 36°F | -7°C / 19°F | 52% | 1030 mb (30.42 in) | NW 15 kph (NW 9.2 mph) | - | 10SM |
| | KDCA 061452Z 32008KT 10SM SCT250 02/M07 A3041 RMK AO2 SLP295 T00171072 51032 |
| 08:52 EST |  Mostly Cloudy | 1°C / 34°F | -8°C / 18°F | 51% | 1029 mb (30.39 in) | NNW 19 kph (NNW 11.5 mph) | - | 10SM |
| | KDCA 061352Z 34010G17KT 10SM BKN250 01/M08 A3038 RMK AO2 SLP287 T00111078 |
| 07:52 EST |  Partly Cloudy | 0°C / 32°F | -8°C / 18°F | 55% | 1028 mb (30.36 in) | NW 6 kph (NW 3.5 mph) | - | 10SM |
| | KDCA 061252Z 31003KT 10SM FEW040 SCT250 00/M08 A3035 RMK AO2 SLP276 T00001078 |
| 06:52 EST |  Partly Cloudy | -1°C / 30°F | -7°C / 19°F | 64% | 1026 mb (30.3 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KDCA 061152Z 31007KT 10SM FEW030 SCT250 M01/M07 A3031 RMK AO2 SLP263 70066 T10061072 10006 21011 53034 |
| 05:52 EST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1025 mb (30.27 in) | NNW 13 kph (NNW 8.1 mph) | - | 10SM |
| | KDCA 061052Z 33007KT 10SM CLR M01/M07 A3027 RMK AO2 SLP250 T10061072 |
| 04:52 EST |  Clear | -1°C / 30°F | -7°C / 19°F | 64% | 1023 mb (30.21 in) | NW 13 kph (NW 8.1 mph) | - | 10SM |
| | KDCA 060952Z 31007G15KT 10SM CLR M01/M07 A3022 RMK AO2 SLP233 T10061067 |
| 03:52 EST |  Clear | 0°C / 32°F | -6°C / 21°F | 64% | 1023 mb (30.21 in) | NW 20 kph (NW 12.7 mph) | - | 10SM |
| | KDCA 060852Z 30011KT 10SM CLR 00/M06 A3021 RMK AO2 SLP229 T00001056 52027 |
| 02:52 EST |  Clear | 0°C / 32°F | -6°C / 21°F | 64% | 1022 mb (30.18 in) | NW 22 kph (NW 13.8 mph) | - | 10SM |
| | KDCA 060752Z 31012G18KT 10SM CLR 00/M06 A3019 RMK AO2 SLP222 T00001056 |
| 01:52 EST |  Clear | 0°C / 32°F | -5°C / 23°F | 69% | 1021 mb (30.15 in) | NNW 20 kph (NNW 12.7 mph) | - | 10SM |
| | KDCA 060652Z 33011KT 10SM CLR 00/M05 A3015 RMK AO2 SLP209 T00001050 |
| 00:52 EST |  Clear | 1°C / 34°F | -4°C / 25°F | 70% | 1020 mb (30.12 in) | NW 19 kph (NW 11.5 mph) | - | 10SM |
| | KDCA 060552Z 32010G18KT 10SM CLR 01/M04 A3013 RMK AO2 SLP202 931000 60000 T00061044 10022 20006 51024 |