Harman US

Washington, DC Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Washington, a city in District Of Columbia County, District of Columbia.

Today
80°F
Partly Sunny
Partly sunny, with a high near 80. Northeast wind around 7 mph.

7-day forecast for Washington

WhenTempForecastWindPrecip
Today 80°F Partly Sunny 7 mph NE 4%
Tonight 66°F Mostly Cloudy then Slight Chance Rain Showers 7 mph SE 17%
Sunday 85°F Slight Chance Rain Showers 5 to 10 mph S 23%
Sunday Night 64°F Showers And Thunderstorms Likely 2 to 9 mph W 71%
Monday 73°F Chance Rain Showers 9 mph NE 31%
Monday Night 59°F Chance Rain Showers 6 to 9 mph NE 40%
Tuesday 66°F Rain Showers Likely 10 to 14 mph NE 55%
Tuesday Night 56°F Rain Showers Likely 10 to 14 mph NE 55%
Wednesday 63°F Chance Rain Showers 15 mph NE 46%
Wednesday Night 56°F Chance Rain Showers 10 to 14 mph NE 46%
Thursday 64°F Chance Rain Showers 14 mph NE 46%
Thursday Night 54°F Chance Showers And Thunderstorms 7 to 13 mph N 38%
Friday 69°F Slight Chance Rain Showers 10 mph N 18%
Friday Night 54°F Slight Chance Rain Showers 6 to 9 mph N 15%

Forecast source: National Weather Service (api.weather.gov) for Washington (38.904, -77.017). Updated through the day.

Growing snapshot for Washington

Last spring frost
Mar 29
First fall frost
Nov 8
Growing season
224 days
Hardiness zone
8a

More local growing data for Washington: nearby ZIP 20001 weather · frost dates · planting calendar · District of Columbia frost dates

Climate data from the nearest NOAA station, Natl Arboretum Dc, Md (2.6 mi from Washington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.