Washington weather in May
Long-run climate averages for Washington, DC in May, plus what the forecast models say for the days ahead.
In May, Washington averages 74°F by day and 54°F at night. The wettest month is usually July.
May in Washington averages a daytime high of 74°F and an overnight low of 54°F, which reads as warm for this part of the world. Across the whole year Washington sees roughly 47 inches of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like — for that, see the live Washington forecast with every model compared and how much they currently agree.
Washington weather by month
what to expect in Washington through the yearHere is Washington's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Washington by season.