Washington DC is set for a warm and humid Thursday on September 17, with temperatures expected to reach 89F and thunderstorms possible later in the day.
The National Weather Service said showers could develop from the afternoon as a cold front approaches, with the greatest risk of storms coming during the evening rush hour.
Isolated showers may appear in the morning, but conditions are expected to brighten around midday before temperatures rise quickly. Scattered showers and thunderstorms are forecast after 3pm, with the threat continuing into the evening.
Washington DC weather forecast
Storms are expected to become more widespread after 5pm, with a broken line of showers potentially moving across the region. Some showers could linger until around midnight.
Overnight conditions will remain mostly cloudy before gradually clearing, with temperatures falling to about 72F. Friday is expected to remain warm, although humidity should ease slightly, with highs in the mid-80s.
The weekend is forecast to begin mostly cloudy and cooler, with temperatures easing behind the front. The chance of showers and thunderstorms is expected to increase again on Sunday, while unsettled and showery conditions could continue into next week.
