Hourly Weather Forecast - Alton, IL

50% Chance of Light Rain

50% Chance of Rain

40% Chance of Rain

50% Chance of Rain

50% Chance of Rain

50% Chance of Rain

50% Chance of Rain

50% Chance of Light Rain

50% Chance Rain Showers

60% Chance Rain Showers

60% Chance Rain Showers

60% Chance Rain Showers

50% Chance Rain Showers

50% Chance Rain Showers

40% Chance Rain Showers

30% Chance Rain Showers

30% Chance Rain Showers

Partly Cloudy

Mostly Clear

Mostly Clear

Partly Cloudy

Partly Cloudy

30% Chance Rain Showers