Summer temperatures · District of Columbia
How hot does Washington, DC get in summer?
In a typical summer, June to August, Washington, DC averages highs around 88°F and lows around 70°F.
About 40 days a year reach 90°F or hotter, and about one reaches 100°F. About 118 days a year get to 80°F or warmer. That makes it the 37th hottest summer of the 129 US cities we track.
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The hottest high in the forecast for the next 48 hours is about 53°F.
Washington, DC averages about 40 days a year at 90°F or hotter, and all that white marble on the Mall soaks up every one of them.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer at a glance
| Average summer high | 88°F |
|---|---|
| Average summer low | 70°F |
| Days a year at 80°F or warmer | 118 |
| Days a year at 90°F or hotter | 40 |
| Days a year at 100°F or hotter | 1 |
| Average winter high, for comparison | 47°F |
Summer here is June to August. Counts are averages a year.
Cities with about the same summer
- Norfolk, Virginia: highs around 87°F, lows around 71°F
- Nashville, Tennessee: highs around 90°F, lows around 69°F
- Raleigh, North Carolina: highs around 89°F, lows around 68°F
More about the weather here
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00013743.