10-Day Weather Forecast - Upper Saint Clair, PA

Areas of frost in the morning. Sunny. Highs in the mid 60s. Light and variable winds, becoming northeast around 5 mph in the afternoon.

Clear. Lows in the mid 30s. North winds around 5 mph.

Sunny. Highs in the mid 60s. North winds around 5 mph.

Clear. Lows in the upper 30s.

Sunny. Highs in the mid 60s.

Clear. Lows in the upper 30s.

Mostly sunny. Highs in the mid 60s.

Mainly clear. Lows in the mid 40s.

Mostly sunny. Highs in the mid 60s.

Clear. Lows in the lower 40s.

Mostly sunny. Highs in the mid 60s.

Clear. Low temperature around 32F. Dew point will be around 30F with an average humidity of 74%. Winds will be 5 mph from the E.

Sunny. High temperature around 61F. Dew point will be around 38F with an average humidity of 60%. Winds will be 4 mph from the SSE.

Partly cloudy. Low temperature around 36F. Dew point will be around 36F with an average humidity of 77%. Winds will be 1 mph from the N.

Partly cloudy. High temperature around 62F. Dew point will be around 42F with an average humidity of 67%. Winds will be 2 mph from the NNE.

Mostly clear. Low temperature around 45F. Dew point will be around 42F with an average humidity of 86%. Winds will be 5 mph from the N.

Partly cloudy. High temperature around 59F. Dew point will be around 46F with an average humidity of 77%. Winds will be 7 mph from the NNE.

Clear. Low temperature around 35F. Dew point will be around 34F with an average humidity of 80%. Winds will be 8 mph from the NE.