Decatur, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Monday
    Cloudy
    65°
    Forecast night icon
    Night
    Partly Cloudy
    53°
    Monday 4/29
    Day
    65°
    Cloudy
    Forecast day icon
    Night
    53°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy with a slight chance of showers and thunderstorms. Highs in the lower 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
    Night Details
    Partly cloudy in the evening then clearing. Lows in the lower 50s. West winds 5 to 10 mph.
  • Forecast day icon
    Tuesday
    Sunny
    74°
    Forecast night icon
    Night
    Mostly Cloudy
    60°
    Tuesday 4/30
    Day
    74°
    Sunny
    Forecast day icon
    Night
    60°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 70s. South winds around 5 mph becoming southwest in the afternoon.
    Night Details
    Mostly clear in the evening then becoming mostly cloudy. Lows around 60. South winds 5 to 10 mph increasing to around 15 mph after midnight.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    75°
    Forecast night icon
    Night
    Partly Cloudy
    62°
    Wednesday 5/1
    Day
    75°
    Mostly Sunny
    Forecast day icon
    Night
    62°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs around 80. Southwest winds 10 to 15 mph.
    Night Details
    Partly cloudy. Lows in the lower 60s.
  • Forecast day icon
    Thursday
    50% Chance of Storms
    82°
    Forecast night icon
    Night
    70% Chance of Storms
    62°
    Thursday 5/2
    Day
    82°
    50% Chance of Storms
    Forecast day icon
    Night
    62°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
    Night Details
    A chance of thunderstorms. Showers likely. Lows in the lower 60s. Chance of rain 70 percent.
  • Forecast day icon
    Friday
    60% Chance of Storms
    67°
    Forecast night icon
    Night
    40% Chance Rain Showers
    52°
    Friday 5/3
    Day
    67°
    60% Chance of Storms
    Forecast day icon
    Night
    52°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    A chance of thunderstorms in the morning. Showers likely. Cooler with highs in the lower 70s. Chance of rain 60 percent.
    Night Details
    Partly cloudy. A chance of showers in the evening. Cooler with lows in the lower 50s. Chance of rain 40 percent.
  • Forecast day icon
    Saturday
    Partly Cloudy
    70°
    Forecast night icon
    Night
    Partly Cloudy
    57°
    Saturday 5/4
    Day
    70°
    Partly Cloudy
    Forecast day icon
    Night
    57°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the mid 70s. Lows in the lower 50s.
    Night Details
    Partly cloudy. Highs in the mid 70s. Lows in the lower 50s.
  • Forecast day icon
    Sunday
    Partly Cloudy
    75°
    Forecast night icon
    Night
    Mostly Clear
    56°
    Sunday 5/5
    Day
    75°
    Partly Cloudy
    Forecast day icon
    Night
    56°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly cloudy. Highs in the mid 70s. Lows in the lower 50s.
    Night Details
    Mostly clear. Low temperature around 56F. Dew point will be around 54F with an average humidity of 79%. Winds will be 2 mph from the SW.
  • Forecast day icon
    Monday
    40% Chance of Rain
    73°
    Forecast night icon
    Night
    40% Chance of Rain
    58°
    Monday 5/6
    Day
    73°
    40% Chance of Rain
    Forecast day icon
    Night
    58°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a chance of rain. Chance of precipitation 35%. High temperature around 73F. Dew point will be around 54F with an average humidity of 65%. Winds will be 4 mph from the E.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 40%. Low temperature around 58F. Dew point will be around 56F with an average humidity of 78%. Winds will be 5 mph from the SE.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    72°
    Forecast night icon
    Night
    40% Chance of Rain
    56°
    Tuesday 5/7
    Day
    72°
    40% Chance of Rain
    Forecast day icon
    Night
    56°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 40%. High temperature around 72F. Dew point will be around 57F with an average humidity of 70%. Winds will be 5 mph from the S.
    Night Details
    Clear with a chance of rain. Chance of precipitation 40%. Low temperature around 56F. Dew point will be around 56F with an average humidity of 80%. Winds will be 2 mph from the SW.
  • Forecast day icon
    Wednesday
    Sunny
    73°
    Forecast night icon
    Night
    30% Chance of Rain
    57°
    Wednesday 5/8
    Day
    73°
    Sunny
    Forecast day icon
    Night
    57°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 73F. Dew point will be around 55F with an average humidity of 66%. Winds will be 2 mph from the SE.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 57F. Dew point will be around 56F with an average humidity of 79%. Winds will be 1 mph from the E.