10-Day Weather Forecast - Saint Peters, PA

Mostly cloudy. Highs in the lower 50s. Southeast winds 10 to 15 mph with gusts up to 30 mph.

A chance of rain in the evening then rain with a slight chance of thunderstorms after midnight. Not as cool with lows in the mid 40s. Temperature rising into the mid 50s after midnight. Southeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Showers. A chance of thunderstorms. Some thunderstorms may produce damaging winds in the morning. Some thunderstorms may be severe with damaging winds in the afternoon. Breezy warmer with highs in the mid 60s. South winds 15 to 25 mph. Gusts up to 35 mph increasing to 45 mph in the afternoon. Chance of rain near 100 percent.

A chance of thunderstorms in the evening. Rain showers. Some thunderstorms may be severe with damaging winds. Breezy and much colder with lows in the upper 20s. West winds 20 to 25 mph with gusts up to 45 mph. Chance of rain near 100 percent.

Partly sunny. A chance of snow showers in the morning. Little or no snow accumulation. Much cooler with highs in the mid 30s. West winds 15 to 20 mph with gusts up to 35 mph. Chance of snow 30 percent.

Partly cloudy in the evening then becoming clear. Cold with lows in the lower 20s.

Sunny in the morning then becoming mostly cloudy. Highs in the upper 30s.

Mostly cloudy. Cold with lows in the upper 20s.

Mostly cloudy in the morning then becoming partly sunny. Not as cool with highs in the upper 40s.

Mostly cloudy. Lows in the lower 30s.

Partly sunny. Highs in the lower 50s.

Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s.

Mostly cloudy in the morning then becoming partly sunny. A 50 percent chance of rain. Highs in the lower 50s.

Cloudy. Low temperature around 27F. Dew point will be around 23F with an average humidity of 62%. Winds will be 7 mph from the NW.

Partly cloudy. High temperature around 44F. Dew point will be around 20F with an average humidity of 48%. Winds will be 10 mph from the NW.

Cloudy. Low temperature around 24F. Dew point will be around 18F with an average humidity of 57%. Winds will be 6 mph from the N.

Cloudy. High temperature around 43F. Dew point will be around 20F with an average humidity of 52%. Winds will be 8 mph from the N.

Partly cloudy. Low temperature around 23F. Dew point will be around 17F with an average humidity of 59%. Winds will be 8 mph from the N.