Hourly Weather Forecast - Alton, IL

70% Chance of Light Rain

Mostly Cloudy

40% Chance of Light Rain

70% Chance of Rain

Rain

70% Chance of Light Rain

40% Chance of Rain

30% Chance of Rain

30% Chance Rain Showers

30% Chance Rain Showers

Partly Cloudy

Partly Cloudy

Partly Cloudy

Mostly Cloudy

Mostly Cloudy

30 % Chance of Heavy Snow

Clear