10-Day Weather Forecast - Newcastle, WY

Mostly sunny. Highs in the mid 90s. South winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.

Mostly clear. Lows in the lower 60s. Southeast winds 10 to 15 mph, becoming east around 5 mph after midnight.

Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 90s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.

Partly cloudy. Lows in the mid 60s. Southeast winds 5 to 10 mph.

Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.

Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the lower 60s. Chance of rain 50 percent.

Becoming partly cloudy. Highs in the upper 80s.

Mostly clear. Lows in the mid 50s.

Sunny. Highs in the mid 80s.

Mostly clear. Lows in the mid 50s.

Mostly sunny. Highs in the mid 80s.

Mostly clear in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20 percent.

Partly cloudy. Highs in the lower 80s.

Partly cloudy. Low temperature around 56F. Dew point will be around 40F with an average humidity of 43%. Winds will be 6 mph from the E.

Partly cloudy. High temperature around 80F. Dew point will be around 39F with an average humidity of 33%. Winds will be 2 mph from the SW.

Clear. Low temperature around 54F. Dew point will be around 38F with an average humidity of 41%. Winds will be 4 mph from the E.

Mostly sunny. High temperature around 78F. Dew point will be around 39F with an average humidity of 34%. Winds will be 4 mph from the SW.

Clear. Low temperature around 52F. Dew point will be around 37F with an average humidity of 41%. Winds will be 4 mph from the NE.