10-Day Weather Forecast - New Castle, CO

Mostly cloudy. Highs in the 70s. West winds 10 to 15 mph with gusts up to 25 mph in the afternoon.

Mostly cloudy in the evening then becoming partly cloudy. Lows 35 to 45. Southwest winds 10 to 15 mph with gusts up to 25 mph in the evening becoming light.

Mostly sunny. Highs 75 to 85. West winds 10 to 15 mph with gusts up to 30 mph in the afternoon.

Mostly clear. Lows in the 40s.

Sunny. Highs 75 to 85.

Mostly clear. Lows in the 40s. Highs 75 to 85.

Mostly clear. Lows in the 40s. Highs 75 to 85.

Partly cloudy. Lows 35 to 45. Highs 65 to 75.

Partly cloudy. Lows 35 to 45. Highs 65 to 75.

Mostly cloudy. Lows in the 30s. Highs in the 70s.

Mostly cloudy. Lows in the 30s. Highs in the 70s.

Mostly clear. Low temperature around 47F. Dew point will be around 22F with an average humidity of 29%. Winds will be 5 mph from the SE.

Cloudy. High temperature around 73F. Dew point will be around 32F with an average humidity of 31%. Winds will be 7 mph from the SW.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 32F with an average humidity of 44%. Winds will be 5 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 66F. Dew point will be around 38F with an average humidity of 46%. Winds will be 5 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 40F. Dew point will be around 35F with an average humidity of 58%. Winds will be 3 mph from the W.

Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 64F. Dew point will be around 35F with an average humidity of 48%. Winds will be 3 mph from the W.

Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 38F. Dew point will be around 29F with an average humidity of 49%. Winds will be 3 mph from the W.