10-Day Weather Forecast - Newcastle, WY

Partly cloudy and breezy. Highs in the lower 30s. Northwest winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon. Wind chill values near zero in the morning.

Partly cloudy. Lows around 15. Northwest winds 10 to 15 mph with gusts up to 25 mph diminishing to around 5 mph after midnight.

Mostly cloudy. A chance of snow in the afternoon. Breezy with highs in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph increasing to 20 to 30 mph with gusts up to 40 mph in the afternoon. Chance of snow 40 percent.

Partly cloudy. Lows around 15. Northwest winds 10 to 20 mph. Gusts up to 35 mph decreasing to 25 mph after midnight.

Partly cloudy and breezy. Highs around 30.

Mostly clear in the evening then becoming partly cloudy. Lows 5 to 10 above.

Partly cloudy. Highs in the upper 30s.

Mostly cloudy. Lows around 10.

Mostly cloudy with a 20 percent chance of snow. Highs in the mid 20s.

Mostly cloudy with a 40 percent chance of snow. Lows zero to 5 above.

Becoming partly cloudy. A 20 percent chance of snow. Highs in the lower 20s.

Partly cloudy. Lows zero to 5 above.

Partly cloudy. Highs in the upper 20s.

Partly cloudy. Low temperature around 14F. Dew point will be around 8F with an average humidity of 67%. Winds will be 1 mph from the N.

Mostly sunny. High temperature around 31F. Dew point will be around 10F with an average humidity of 50%. Winds will be 3 mph from the SW.

Mostly cloudy. Low temperature around 17F. Dew point will be around 12F with an average humidity of 67%. Winds will be 4 mph from the NW.

Mostly sunny. High temperature around 30F. Dew point will be around 11F with an average humidity of 51%. Winds will be 6 mph from the NW.

Clear. Low temperature around 17F. Dew point will be around 11F with an average humidity of 69%. Winds will be 4 mph from the NW.