| NWS Forecast for: Washington DC Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 7:54 am EDT Aug 17, 2026 |  |
Today: Mostly sunny, with a high near 91. Heat index values as high as 100. West wind 5 to 8 mph. Tonight: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 73. Light northwest wind. Chance of precipitation is 20%. Tuesday: Sunny, with a high near 89. Northwest wind 5 to 8 mph. Tuesday Night: Mostly clear, with a low around 70. Calm wind. Wednesday: Sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon. Wednesday Night: Partly cloudy, with a low around 73. Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%. Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%. Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%. Friday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 60%. Saturday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Chance of precipitation is 50%. Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 50%. Sunday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 20%. | |
| Washington DC 38.89°N 77.02°W (Elev. 20 ft) | |
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