10-Day Weather Forecast - Newcastle, WY

Mostly sunny and breezy. Highs in the mid 70s. West winds 5 to 10 mph with gusts up to 25 mph increasing to northwest 15 to 25 mph with gusts up to 35 mph in the afternoon.

Partly cloudy. Lows in the upper 40s. Northwest winds 10 to 20 mph with gusts up to 35 mph diminishing to around 5 mph after midnight.

Partly cloudy. Highs in the mid 80s. West winds around 5 mph with gusts up to 20 mph increasing to northwest 10 to 15 mph with gusts up to 30 mph in the afternoon.

Partly cloudy. Lows in the mid 50s. Northwest winds 10 to 15 mph with gusts up to 30 mph.

Mostly sunny and windy. Highs in the mid 70s.

Mostly clear in the evening then becoming partly cloudy. Breezy with lows in the upper 40s.

Partly cloudy in the morning then clearing. Highs in the mid 70s.

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 40s.

Partly cloudy in the morning then clearing. Highs in the lower 80s.

Partly cloudy. Lows in the mid 50s.

Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.

A chance of thunderstorms. Showers likely. Lows in the lower 50s. Chance of rain 70 percent.

Showers likely. A chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent.

Partly cloudy with a 50% chance for rain and thunderstorms. Low temperature around 53F. Dew point will be around 45F with an average humidity of 64%. Winds will be 6 mph from the SE.

Partly cloudy with a 35% chance for rain and thunderstorms. High temperature around 76F. Dew point will be around 45F with an average humidity of 47%. Winds will be 7 mph from the SE.

Partly cloudy with a 45% chance for rain and thunderstorms. Low temperature around 54F. Dew point will be around 45F with an average humidity of 56%. Winds will be 6 mph from the E.

Sunny. High temperature around 83F. Dew point will be around 43F with an average humidity of 38%. Winds will be 5 mph from the S.

Clear. Low temperature around 58F. Dew point will be around 44F with an average humidity of 46%. Winds will be 6 mph from the E.