Washington, D.C. woke up clear and in the upper 40s on Monday, March 9, 2026, but the week is pulling a fast one on the forecast: a quick shot of sun and above-normal warmth to start, then a sharp cold front slamming in by midweek. Look for sunny skies and highs near 72°F Monday, with temperatures pushing into the upper 70s on Tuesday. That early taste of warmth shuts down late Wednesday as a strong front rolls through, bringing rain, gusty winds and a 20- to 30-degree plunge into Thursday.
Sunny Opening Act, Then A Midweek Flip
Monday and Tuesday stay mostly tranquil, bright and mild. Highs land near 72°F on Monday and around 78°F on Tuesday, with light southwest to west breezes. Wednesday is set to be the warmest of the stretch, with readings again…..