10-Day Weather Forecast - Saint Peters, MO

Sunny. Much cooler with highs in the upper 30s. West winds 15 to 20 mph with gusts up to 30 mph becoming southwest 5 to 10 mph this afternoon.

Mostly clear in the evening then becoming partly cloudy. Near steady temperature in the mid 30s. Temperature rising into the mid 30s after midnight. South winds 10 to 15 mph with gusts up to 25 mph.

Mostly sunny. Not as cool with highs in the mid 50s. South winds 10 to 15 mph becoming west in the afternoon.

Partly cloudy. Lows in the upper 20s. Northwest winds 5 to 10 mph.

Mostly sunny. Cooler with highs in the lower 40s. North winds around 5 mph becoming northeast in the afternoon.

Mostly cloudy. Lows in the upper 20s. Highs in the upper 40s.

Mostly cloudy. Lows in the upper 20s. Highs in the upper 40s.

Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s.

Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s.

Mostly cloudy. Lows in the upper 40s. Highs in the upper 60s.

Mostly cloudy. Lows in the upper 40s. Highs in the upper 60s.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 50s.

Mostly sunny. Highs in the lower 70s.

Mostly clear. Low temperature around 52F. Dew point will be around 54F with an average humidity of 85%. Winds will be 6 mph from the W.

Mostly sunny. High temperature around 62F. Dew point will be around 51F with an average humidity of 75%. Winds will be 4 mph from the SW.

Partly cloudy. Low temperature around 50F. Dew point will be around 49F with an average humidity of 84%. Winds will be 2 mph from the S.

Mostly cloudy. High temperature around 59F. Dew point will be around 49F with an average humidity of 78%. Winds will be 1 mph from the N.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 46F with an average humidity of 84%. Winds will be 3 mph from the NE.