10-Day Weather Forecast - Newcastle, WY

Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 50s. Northwest winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.

Becoming partly cloudy. Lows around 30. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy in the morning, then clearing. Highs in the mid 50s. Northwest winds 5 to 10 mph.

Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 30s.

Partly cloudy in the morning, then clearing. Highs in the mid 50s.

Mostly clear. Lows around 30.

Mostly sunny. Highs in the lower 50s.

Mostly clear. Lows in the upper 20s.

Sunny. Highs in the upper 50s.

Mostly clear. Lows in the lower 30s.

Mostly sunny. Highs in the upper 50s.

Partly cloudy. Low temperature around 36F. Dew point will be around 30F with an average humidity of 68%. Winds will be 5 mph from the E.

Mostly sunny. High temperature around 57F. Dew point will be around 36F with an average humidity of 55%. Winds will be 8 mph from the NW.

Mostly clear. Low temperature around 36F. Dew point will be around 29F with an average humidity of 70%. Winds will be 4 mph from the ENE.

Partly cloudy. High temperature around 54F. Dew point will be around 35F with an average humidity of 56%. Winds will be 3 mph from the SE.

Mostly cloudy. Low temperature around 40F. Dew point will be around 29F with an average humidity of 60%. Winds will be 5 mph from the ESE.