AWUS81 KLWX 202100 RWSLWX DCZ001-MDZ003>006-008-011-013-014-016>018-501>510-VAZ025>031- 036>040-050-051-053>057-501>508-526-527-WVZ050>053-055-501>506- 210900- Regional Weather Summary National Weather Service Baltimore MD/Washington DC 500 PM EDT Sun Sep 20 2026 Here is a look at the weather features that will affect the region over the next several days. A cold front will slowly drop south through the area tonight and Monday, eventually settling over the southeastern states by mid week. A strong area of high pressure will build to our north on Monday and remain in place through much of the week, leading to a prolonged period of onshore flow. Daily shower chances can be expected as waves of low pressure move along the stalled boundary. The marine influenced air mass will result in low overcast and well below normal high temperatures. $$