10-Day Weather Forecast - Saint Peters, MO

Sunny. Highs in the mid 50s. West winds 5 to 10 mph.

Partly cloudy. Not as cool with lows in the lower 40s. South winds 15 to 20 mph with gusts up to 35 mph.

Partly sunny. Highs in the lower 60s. West winds 15 to 20 mph with gusts up to 30 mph.

Mostly cloudy. Lows in the mid 30s. North winds 5 to 10 mph becoming northeast after midnight.

Mostly cloudy. Highs in the lower 60s. Lows in the lower 50s.

Mostly cloudy. Highs in the lower 60s. Lows in the lower 50s.

Rain likely with a slight chance of thunderstorms in the morning then rain in the afternoon. Breezy with highs in the mid 60s. Chance of rain 80 percent.

Mostly cloudy. A chance of rain and snow in the evening. Breezy and much cooler with lows in the mid 20s. Chance of precipitation 40 percent.

Mostly sunny and breezy. Much cooler with highs in the mid 30s.

Mostly clear. Lows around 20.

Mostly sunny in the morning then becoming mostly cloudy. Highs in the lower 40s.

Mostly cloudy with a slight chance of rain and snow. Not as cool with lows in the lower 30s. Chance of precipitation 20 percent.

Mostly cloudy in the morning then becoming partly sunny. Not as cool with highs in the mid 50s.

Clear. Low temperature around 36F. Dew point will be around 33F with an average humidity of 73%. Winds will be 4 mph from the E.

Mostly sunny. High temperature around 62F. Dew point will be around 40F with an average humidity of 66%. Winds will be 7 mph from the SE.

Partly cloudy. Low temperature around 47F. Dew point will be around 44F with an average humidity of 71%. Winds will be 6 mph from the S.

Partly cloudy. High temperature around 71F. Dew point will be around 51F with an average humidity of 66%. Winds will be 6 mph from the SW.

Mostly clear. Low temperature around 49F. Dew point will be around 47F with an average humidity of 68%. Winds will be 1 mph from the S.