Washington, D.C. — Summer-like warmth hangs on in the District for the first half of the week before a strong cold front ushers in the coldest air of the season this weekend.
Tuesday turns sunny, with a high near 81 and a light south wind in the afternoon. Tuesday night stays clear and mild, with lows near 60 in cooler spots and the upper 60s downtown.
Wednesday is the warmest day of the week. The National Weather Service calls for a high near 87, and the air will feel humid for October, with dew points in the mid-60s to near 70. A slight chance of showers and thunderstorms arrives Wednesday night.
Thursday brings a chance of showers and a high near 69 as a cool front stalls nearby. Warmer air returns briefly Friday, with a high near 79, before showers and thunderstorms become likely late in the day as a strong cold front moves through.
Temperatures tumble behind the front. Saturday is sunny but blustery, with a high near 56, and lows Saturday night dip to near 40. Patchy frost could develop by early Sunday. Sunday stays sunny and chilly, with a high near 59, and Monday warms to near 65.