10-Day Weather Forecast - Herculaneum, MO

Partly sunny. Much cooler with highs in the lower 40s. Temperature falling into the mid 30s in the afternoon. Northwest winds 10 to 15 mph with gusts up to 30 mph.

Mostly clear. Much cooler with lows around 17. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Sunny. Highs in the mid 30s. Northwest winds around 5 mph becoming west in the afternoon.

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

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

Mostly cloudy. Lows in the lower 20s. Highs in the lower 30s.

Mostly cloudy. Lows in the lower 20s. Highs in the lower 30s.

Mostly cloudy in the evening then becoming partly cloudy. Cooler with lows around 10 above. Wind chill values as low as zero.

Mostly clear. Highs in the upper 20s. Lows around 10 above. Wind chill values as low as 5 below.

Mostly clear. Highs in the upper 20s. Lows around 10 above. Wind chill values as low as 5 below.

Sunny. Not as cool with highs in the upper 30s. Wind chill values as low as 5 above in the morning.

Partly cloudy. Low temperature around 17F. Dew point will be around 7F with an average humidity of 55%. Winds will be 4 mph from the NW.

Sunny. High temperature around 38F. Dew point will be around 13F with an average humidity of 51%. Winds will be 2 mph from the SE.

Clear. Low temperature around 25F. Dew point will be around 15F with an average humidity of 61%. Winds will be 6 mph from the SE.

Partly cloudy. High temperature around 44F. Dew point will be around 28F with an average humidity of 66%. Winds will be 6 mph from the S.

Cloudy with a slight chance of rain-snow mix. Chance of precipitation 25%. Low temperature around 32F. Dew point will be around 29F with an average humidity of 81%. Winds will be 4 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 44F. Dew point will be around 34F with an average humidity of 79%. Winds will be 5 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 36F. Dew point will be around 35F with an average humidity of 87%. Winds will be 4 mph from the SE.