Washington, DC – Triple-digit heat grips the nation’s capital Tuesday, July 29th, as temperatures soar toward 98°F with a dangerous heat index near 102°F. Residents commuting along I-395 and throughout the DC metro area should take precautions and limit outdoor activity between noon and 5 p.m.
According to the National Weather Service, Tuesday will be sunny and extremely hot, with light winds offering little relief. Heat index values could hit 102°F, creating a risk for heat exhaustion, especially during peak afternoon hours. DC Health urges residents to stay hydrated, wear loose clothing, and check on vulnerable neighbors.
Tuesday night brings a calm, mostly clear sky with lows around 77°F. But heat relief will be short-lived.
By Wednesday, the pattern shifts as high humidity fuels a slight chance of storms after 2 p.m. Thunderstorms become more likely Wednesday night, with showers increasing after 11 p.m. That risk jumps sharply Thursday, when the chance of storms peaks at 80% — including heavy rainfall and isolated thunder.
Five-Day Forecast for Washington, DC
- Tuesday, July 29: Sunny and hot. High 98°F. Heat index 102°F. Light wind.
- Wednesday: Mostly sunny. High 100°F. 20% chance of storms after 2 p.m.
- Thursday: Thunderstorms likely, especially after 2 p.m. High 90°F. Rain chance 80%.
- Friday: Chance of showers. High near 79°F. Cooler and mostly cloudy.
- Saturday–Sunday: Partly to mostly sunny. Highs in low 80s. Drier air returns.
Storm alerts may be issued Wednesday night. Stay tuned for NWS updates and prepare now for weather-related disruptions.
