Friday, July 3, 2026, and Washington, D.C. is already slogging through muggy air under clear skies, with early readings in the mid 80s and triple digit highs expected later today. The forecast calls for a high near 102°F and heat index values that could top out around 110 to 113°F this afternoon. Local authorities have issued Extreme Heat Warnings for 10 a.m. to 9 p.m. EDT on Friday, July 3, 2026, and again for Saturday, July 4, 2026.
Forecast Details
According to the National Weather Service, dangerously hot conditions will persist through the holiday weekend, with highs near 102°F, dew points in the low 70s, and heat indices up to about 113°F, a combination that raises the risk of heat related illness. Winds are expected to stay light, generally 2 to 7 mph, so natural cooling will be minimal during the hottest hours and overnight lows should remain in the low 80s. The agency's forecast also flags an increasing convective threat: a chance of showers and thunderstorms after about 3 p.m. on Saturday, July 4, 2026, with repeated rounds possible Sunday, July 5, 2026, that could produce heavy downpours and damaging gusts. For the full forecast and current alerts, see the National Weather Service.
Cooling Centers And Safety
City officials have activated an Extreme Heat Alert and set extended hours at selected recreation centers and day centers to serve as cooling sites, according to the Mayor's Office. The Downtown Day Services Center at 1313 New York Avenue NW will be open Friday, July 3, 2026 from 9 a.m. to 8 p.m. and Saturday, July 4, 2026 from 10 a.m. to 6 p.m., and several indoor pools and community centers are listed as daytime cooling centers. Call 311 or check the city's heat resources for the full list of locations and services.
Plan And Prepare
Stay hydrated, limit outdoor activity between roughly 11 a.m. and 4 p.m., and never leave children or pets unattended in parked cars. If you have Fourth of July plans, consider shifting gatherings to cooler parts of the day or moving them indoors, and be prepared to pause events if storms develop. For earlier background, see D.C. sizzles.
