10-Day Weather Forecast - Newcastle, WY

Becoming mostly cloudy. Windy and not as cool with highs in the mid 50s. West winds 15 to 25 mph increasing to 25 to 35 mph in the afternoon. Gusts up to 50 mph.

A chance of rain in the evening. Mostly cloudy with a chance of snow. Little or no snow accumulation. Breezy with lows in the lower 20s. West winds 20 to 30 mph becoming northwest 10 to 20 mph after midnight. Gusts up to 40 mph. Chance of precipitation 50 percent.

Partly cloudy in the morning then clearing. Cooler with highs in the mid 30s. Northwest winds 5 to 10 mph.

Mostly clear in the evening then becoming partly cloudy. Lows 15 to 20. Southeast winds 5 to 10 mph.

Partly cloudy. Highs in the lower 40s. Southeast winds 5 to 10 mph.

Partly cloudy. Lows in the lower 30s.

Partly cloudy. Highs in the mid 50s.

Partly cloudy. Lows in the lower 30s.

Partly cloudy. Highs in the lower 50s.

Partly cloudy. Lows in the mid 30s.

Partly cloudy. Highs in the upper 50s.

Partly cloudy. Lows in the lower 30s.

Partly cloudy. Highs in the lower 50s.

Mostly clear. Low temperature around 33F. Dew point will be around 27F with an average humidity of 62%. Winds will be 6 mph from the S.

Partly cloudy. High temperature around 51F. Dew point will be around 24F with an average humidity of 47%. Winds will be 5 mph from the W.

Mostly clear. Low temperature around 28F. Dew point will be around 23F with an average humidity of 63%. Winds will be 3 mph from the NW.

Mostly cloudy. High temperature around 41F. Dew point will be around 22F with an average humidity of 55%. Winds will be 3 mph from the NE.

Clear. Low temperature around 24F. Dew point will be around 20F with an average humidity of 66%. Winds will be 2 mph from the NE.

Sunny. High temperature around 40F. Dew point will be around 17F with an average humidity of 48%. Winds will be 4 mph from the E.

Clear. Low temperature around 27F. Dew point will be around 16F with an average humidity of 52%. Winds will be 4 mph from the S.