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The weather in Chantilly, Virginia, United States varies seasonally and is mostly moderate. Winters in Chantilly are usually chilly, with average high temperatures in the mid-40s and lows in the mid-20s. Snow and ice are common, but usually not in massive amounts. Summers are warm and humid, with average highs in the mid-80s and lows in the mid-60s. The area experiences mild spring and autumn temperatures, with average highs in the mid-60s and lows in the mid-40s. Rain is common throughout the year, with most precipitation occurring during the spring and summer months.
As of 2020, the city population is 23820.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Chantilly, Virginia.