10-Day Weather Forecast - Dulles, VA

Sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds and heavy rainfall in the afternoon. Hot with highs around 90. Northwest winds 5 to 10 mph. Chance of rain 50 percent.

Mostly cloudy in the evening, then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers. Some thunderstorms may produce gusty winds and heavy rainfall in the evening. Lows around 70. Northwest winds 5 to 10 mph. Chance of rain 50 percent.

Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. North winds around 5 mph. Chance of rain 40 percent.

Partly cloudy. A chance of showers in the evening. Lows in the lower 60s. North winds around 5 mph. Chance of rain 40 percent.

Sunny. Highs in the lower 80s.

Mostly clear. Lows in the upper 50s.

Sunny. Highs in the lower 80s.

Partly cloudy. Lows in the upper 50s.

Mostly sunny. Highs in the mid 80s.

Partly cloudy. Lows in the lower 60s.

Mostly sunny. Highs in the upper 80s.

Partly cloudy. Lows in the upper 60s.

Mostly sunny. Highs in the upper 80s.

Mostly clear with a 40% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 69F with an average humidity of 80%. Winds will be 3 mph from the W.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 81F. Dew point will be around 67F with an average humidity of 73%. Winds will be 4 mph from the NW.

Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 67F. Dew point will be around 65F with an average humidity of 84%. Winds will be 2 mph from the N.

Mostly sunny. High temperature around 78F. Dew point will be around 65F with an average humidity of 75%. Winds will be 2 mph from the N.

Clear. Low temperature around 67F. Dew point will be around 64F with an average humidity of 82%. Winds will be 1 mph from the E.