Hourly Weather Forecast - Alton, IL

30% Chance Rain Showers

30% Chance Rain Showers

30% Chance Rain Showers

30% Chance Rain Showers

Partly Cloudy

Partly Cloudy

Partly Cloudy

30% Chance Rain Showers

30% Chance Rain Showers

30% Chance Rain Showers

30% Chance Rain Showers

40% Chance Rain Showers

40% Chance Rain Showers

40% Chance Rain Showers

40% Chance Rain Showers

30% Chance Rain Showers

30% Chance Rain Showers

Partly Cloudy

Partly Cloudy

Partly Cloudy

Warm and Humid

Warm and Humid

Partly Cloudy