10-Day Weather Forecast - New Castle, DE

Mostly cloudy with a slight chance of snow showers in the morning then mostly sunny in the afternoon. Highs in the upper 30s. Southwest winds 10 to 15 mph. Chance of snow 20 percent.

Mostly cloudy. A chance of snow showers after midnight. Little or no snow accumulation. Cold with lows in the mid 20s. Southwest winds 10 to 15 mph. Chance of snow 30 percent.

Sunny cold with highs in the lower 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Mostly clear in the evening then becoming partly cloudy. Cold with lows around 19. West winds 5 to 10 mph.

Partly sunny. Highs in the upper 30s.

Mostly cloudy in the evening then clearing. Cold with lows in the lower 20s.

Partly sunny. Highs in the mid 30s.

Mostly cloudy in the evening then clearing. Cold with lows in the lower 20s.

Sunny. Highs in the upper 30s.

Partly cloudy in the evening then becoming mostly cloudy. Cold with lows in the mid 20s.

Partly sunny in the morning then becoming mostly cloudy. Highs around 40.

Mostly cloudy. Cold with lows in the upper 20s.

Partly sunny. Highs around 40.

Mostly clear. Low temperature around 28F. Dew point will be around 24F with an average humidity of 73%. Winds will be 7 mph from the NW.

Sunny. High temperature around 36F. Dew point will be around 21F with an average humidity of 63%. Winds will be 6 mph from the NW.

Clear. Low temperature around 28F. Dew point will be around 21F with an average humidity of 70%. Winds will be 3 mph from the W.

Mostly cloudy. High temperature around 39F. Dew point will be around 24F with an average humidity of 65%. Winds will be 3 mph from the W.

Partly cloudy with a slight chance of rain-snow mix. Chance of precipitation 25%. Low temperature around 30F. Dew point will be around 24F with an average humidity of 73%. Winds will be 3 mph from the W.