Illiopolis, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    69°
    Sunday 5/19
    Forecast night icon
    69°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Lows in the upper 60s. Southeast winds 5 to 10 mph.
  • Forecast day icon
    Monday
    40% Chance of Storms
    84°
    Forecast night icon
    Night
    40% Chance of Storms
    69°
    Monday 5/20
    Day
    84°
    40% Chance of Storms
    Forecast day icon
    Night
    69°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
    Night Details
    Partly cloudy. A chance of showers and thunderstorms mainly in the evening. Lows in the upper 60s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    88°
    Forecast night icon
    Night
    70% Chance of Storms
    70°
    Tuesday 5/21
    Day
    88°
    Mostly Sunny
    Forecast day icon
    Night
    70°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny and breezy. Highs in the upper 80s. South winds 15 to 25 mph.
    Night Details
    A chance of thunderstorms. Showers likely. Breezy with lows in the upper 60s. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 70 percent.
  • Forecast day icon
    Wednesday
    50% Chance of Storms
    79°
    Forecast night icon
    Night
    Mostly Clear
    57°
    Wednesday 5/22
    Day
    79°
    50% Chance of Storms
    Forecast day icon
    Night
    57°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers and thunderstorms. Cooler with highs in the upper 70s. Chance of rain 50 percent.
    Night Details
    Mostly clear. Lows in the mid 50s. Highs in the upper 70s.
  • Forecast day icon
    Thursday
    Mostly Sunny
    78°
    Forecast night icon
    Night
    Partly Cloudy
    60°
    Thursday 5/23
    Day
    78°
    Mostly Sunny
    Forecast day icon
    Night
    60°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the mid 50s. Highs in the upper 70s.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.
  • Forecast day icon
    Friday
    40% Chance Rain Showers
    81°
    Forecast night icon
    Night
    50% Chance of Storms
    65°
    Friday 5/24
    Day
    81°
    40% Chance Rain Showers
    Forecast day icon
    Night
    65°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers. Highs in the lower 80s. Chance of rain 40 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Chance of rain 50 percent.
  • Forecast day icon
    Saturday
    50% Chance of Storms
    81°
    Forecast night icon
    Night
    50% Chance of Storms
    62°
    Saturday 5/25
    Day
    81°
    50% Chance of Storms
    Forecast day icon
    Night
    62°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Chance of rain 50 percent.
  • Forecast day icon
    Sunday
    40% Chance of Storms
    81°
    Forecast night icon
    Night
    50% Chance of Rain
    66°
    Sunday 5/26
    Day
    81°
    40% Chance of Storms
    Forecast day icon
    Night
    66°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 40 percent.
    Night Details
    Mostly clear with a 45% chance for rain and thunderstorms. Low temperature around 66F. Dew point will be around 62F with an average humidity of 74%. Winds will be 6 mph from the SE.
  • Forecast day icon
    Monday
    60% Chance of Storms
    80°
    Forecast night icon
    Night
    40% Chance of Storms
    62°
    Monday 5/27
    Day
    80°
    60% Chance of Storms
    Forecast day icon
    Night
    62°
    40% Chance of Storms
    Forecast night icon
    Day Details
    Mostly cloudy with a 75% chance for rain and thunderstorms. High temperature around 80F. Dew point will be around 64F with an average humidity of 69%. Winds will be 7 mph from the S.
    Night Details
    Mostly clear with a 70% chance for rain and thunderstorms. Low temperature around 62F. Dew point will be around 60F with an average humidity of 75%. Winds will be 3 mph from the SW.
  • Forecast day icon
    Tuesday
    30% Chance of Rain
    77°
    Forecast night icon
    Night
    30% Chance of Rain
    60°
    Tuesday 5/28
    Day
    77°
    30% Chance of Rain
    Forecast day icon
    Night
    60°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 77F. Dew point will be around 59F with an average humidity of 66%. Winds will be 5 mph from the W.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 60F. Dew point will be around 58F with an average humidity of 74%. Winds will be 4 mph from the W.