10-Day Weather Forecast - Alton, MO

Sunny cooler with highs in the upper 50s. Northwest winds around 5 mph becoming west in the afternoon.

Mostly clear. Lows around 40. South winds 5 to 10 mph with gusts up to 25 mph.

Sunny warmer with highs around 70. Southwest winds 5 to 10 mph.

Mostly clear. Lows around 40. Highs in the lower 70s.

Mostly clear. Lows around 40. Highs in the lower 70s.

Mostly clear in the evening then becoming mostly cloudy. Not as cool with lows in the lower 50s.

Mostly cloudy. A slight chance of showers in the morning then a chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 50 percent.

Mostly cloudy. A slight chance of rain showers in the evening. Much colder with lows in the upper 20s. Chance of rain 20 percent.

Mostly sunny. Much cooler with highs in the mid 40s.

Mostly cloudy. Lows in the mid 20s. Highs in the lower 50s.

Mostly cloudy. Lows in the mid 20s. Highs in the lower 50s.

Cloudy. Low temperature around 41F. Dew point will be around 26F with an average humidity of 53%. Winds will be 7 mph from the S.

Mostly cloudy. High temperature around 66F. Dew point will be around 39F with an average humidity of 60%. Winds will be 9 mph from the SW.

Clear. Low temperature around 46F. Dew point will be around 44F with an average humidity of 72%. Winds will be 3 mph from the SW.

Sunny. High temperature around 69F. Dew point will be around 47F with an average humidity of 66%. Winds will be 2 mph from the SW.

Mostly clear. Low temperature around 51F. Dew point will be around 49F with an average humidity of 71%. Winds will be 4 mph from the S.

Sunny. High temperature around 72F. Dew point will be around 52F with an average humidity of 69%. Winds will be 6 mph from the S.

Mostly clear. Low temperature around 54F. Dew point will be around 52F with an average humidity of 71%. Winds will be 4 mph from the S.