10-Day Weather Forecast - Alton, MO

Partly sunny with a chance of sprinkles in the morning then sunny in the afternoon. Much cooler with highs in the upper 40s. Temperature falling into the upper 30s in the afternoon. North winds 10 to 15 mph with gusts up to 30 mph.

Mostly clear. Much colder with lows around 18. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.

Sunny. Highs around 40. Northwest winds around 5 mph becoming west around 5 mph in the afternoon.

Partly cloudy. Cold with lows in the upper 20s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

Mostly sunny. Highs in the upper 40s.

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

Mostly sunny. Cooler with highs in the mid 30s.

Mostly clear. Lows 10 to 15. Highs in the lower 40s.

Mostly clear. Lows 10 to 15. Highs in the lower 40s.

Clear cold with lows around 20.

Sunny. Highs in the mid 40s.

Clear cold with lows around 15.

Sunny. Highs around 40.

Clear. Low temperature around 29F. Dew point will be around 19F with an average humidity of 62%. Winds will be 4 mph from the SE.

Mostly cloudy. High temperature around 43F. Dew point will be around 29F with an average humidity of 68%. Winds will be 7 mph from the SE.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 39F. Dew point will be around 36F with an average humidity of 82%. Winds will be 5 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 47F. Dew point will be around 39F with an average humidity of 85%. Winds will be 6 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 42F. Dew point will be around 42F with an average humidity of 89%. Winds will be 3 mph from the SE.