10-Day Weather Forecast - Herndon, VA

Mostly sunny in the morning then mostly cloudy with a chance of snow with a slight chance of rain in the afternoon. Highs around 40. Light and variable winds becoming south around 5 mph in the afternoon. Chance of precipitation 30 percent.

A slight chance of rain in the evening. Snow likely. Snow accumulation up to 1 inch possible. Lows in the mid 20s. Light and variable winds becoming northeast around 5 mph after midnight. Chance of precipitation 60 percent.

Partly sunny. Highs in the lower 30s. North winds 5 to 10 mph.

Mostly cloudy in the evening then clearing. Lows around 16. Northwest winds around 5 mph.

Sunny. Highs around 30.

Partly cloudy. Cold with lows 10 to 15.

Partly sunny with a 40 percent chance of snow. Highs in the upper 30s.

Partly cloudy. Lows around 15.

Sunny. Highs in the mid 20s.

Partly cloudy. Cold with lows around 10 above. Wind chill values as low as zero.

Mostly sunny. Highs in the mid 20s. Wind chill values as low as zero.

Partly cloudy. Cold with lows around 10 above.

Mostly sunny. Highs around 30.

Clear. Low temperature around 17F. Dew point will be around -0F with an average humidity of 43%. Winds will be 12 mph from the NW.

Sunny. High temperature around 33F. Dew point will be around 2F with an average humidity of 35%. Winds will be 11 mph from the NW.

Clear. Low temperature around 23F. Dew point will be around 10F with an average humidity of 51%. Winds will be 8 mph from the NW.

Sunny. High temperature around 40F. Dew point will be around 12F with an average humidity of 42%. Winds will be 7 mph from the NW.

Partly cloudy. Low temperature around 29F. Dew point will be around 19F with an average humidity of 59%. Winds will be 3 mph from the NW.