Collinsville, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
Main Menu
10 Day Forecast
  • Forecast day icon
    Thursday
    Rain
    82°
    Forecast night icon
    Night
    Thunderstorms
    53°
    Thursday 4/18
    Day
    82°
    Rain
    Forecast day icon
    Night
    53°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with likely rain. Chance of precipitation 85%. High temperature around 82F. Dew point will be around 58F with an average humidity of 66%. Winds will be 7 mph from the SE.
    Night Details
    Showers with thunderstorms likely this evening then a chance of showers and thunderstorms after midnight. Some thunderstorms may produce damaging winds and large hail this evening. Lows in the mid 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.
  • Forecast day icon
    Friday
    Mostly Sunny
    61°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Friday 4/19
    Day
    61°
    Mostly Sunny
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Much cooler with highs in the lower 60s. North winds 10 to 15 mph.
    Night Details
    Partly cloudy. Lows in the mid 40s. North winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Mostly Sunny
    59°
    Forecast night icon
    Night
    Mostly Cloudy
    45°
    Saturday 4/20
    Day
    59°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs around 60. Northwest winds 10 to 15 mph.
    Night Details
    Mostly cloudy. Lows in the upper 30s. North winds 5 to 10 mph.
  • Forecast day icon
    Sunday
    Mostly Sunny
    62°
    Forecast night icon
    Night
    Mostly Clear
    45°
    Sunday 4/21
    Day
    62°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the lower 60s. Lows in the upper 30s.
    Night Details
    Mostly clear. Highs in the lower 60s. Lows in the upper 30s.
  • Forecast day icon
    Monday
    Sunny
    69°
    Forecast night icon
    Night
    Mostly Cloudy
    54°
    Monday 4/22
    Day
    69°
    Sunny
    Forecast day icon
    Night
    54°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 60s.
    Night Details
    Mostly cloudy. A slight chance of showers after midnight. Not as cool with lows in the lower 50s. Chance of rain 20 percent.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    68°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Tuesday 4/23
    Day
    68°
    50% Chance of Storms
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly sunny. A chance of showers with a slight chance of thunderstorms. Highs around 70. Chance of rain 50 percent.
    Night Details
    Partly cloudy with a slight chance of showers and thunderstorms in the evening then mostly clear after midnight. Lows in the mid 40s. Chance of rain 20 percent.
  • Forecast day icon
    Wednesday
    Sunny
    65°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Wednesday 4/24
    Day
    65°
    Sunny
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Day Details
    Sunny. Highs in the upper 60s.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. A 20 percent chance of showers. Lows in the mid 40s.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    65°
    Forecast night icon
    Night
    50% Chance of Rain
    57°
    Thursday 4/25
    Day
    65°
    30% Chance Rain Showers
    Forecast day icon
    Night
    57°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. A slight chance of showers in the morning then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 57F. Dew point will be around 49F with an average humidity of 70%. Winds will be 9 mph from the SE.
  • Forecast day icon
    Friday
    70% Chance of Storms
    68°
    Forecast night icon
    Night
    80% Chance of Storms
    63°
    Friday 4/26
    Day
    68°
    70% Chance of Storms
    Forecast day icon
    Night
    63°
    80% Chance of Storms
    Forecast night icon
    Day Details
    Cloudy with a 70% chance for rain and thunderstorms. High temperature around 68F. Dew point will be around 53F with an average humidity of 70%. Winds will be 8 mph from the SE.
    Night Details
    Cloudy with a 75% chance for rain and thunderstorms. Low temperature around 63F. Dew point will be around 57F with an average humidity of 75%. Winds will be 7 mph from the SE.
  • Forecast day icon
    Saturday
    70% Chance of Storms
    75°
    Forecast night icon
    Night
    70% Chance of Storms
    66°
    Saturday 4/27
    Day
    75°
    70% Chance of Storms
    Forecast day icon
    Night
    66°
    70% Chance of Storms
    Forecast night icon
    Day Details
    Cloudy with a 65% chance for rain and thunderstorms. High temperature around 75F. Dew point will be around 60F with an average humidity of 70%. Winds will be 10 mph from the S.
    Night Details
    Partly cloudy with a 65% chance for rain and thunderstorms. Low temperature around 66F. Dew point will be around 60F with an average humidity of 72%. Winds will be 10 mph from the S.