Decatur, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    Sunny
    57°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Thursday 3/28
    Day
    57°
    Sunny
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Not as cool with highs in the upper 50s. South winds 10 to 15 mph becoming southwest 15 to 20 mph this afternoon.
    Night Details
    Partly cloudy. Not as cool with lows around 40. Southwest winds 10 to 15 mph.
  • Forecast day icon
    Friday
    Partly Sunny
    67°
    Forecast night icon
    Night
    50% Chance Rain Showers
    56°
    Friday 3/29
    Day
    67°
    Partly Sunny
    Forecast day icon
    Night
    56°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Not as cool with highs in the upper 60s. Southwest winds 5 to 10 mph increasing to south 15 to 20 mph in the afternoon.
    Night Details
    Mostly cloudy with a chance of showers. Not as cool with lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
  • Forecast day icon
    Saturday
    Partly Sunny
    68°
    Forecast night icon
    Night
    30% Chance Rain Showers
    50°
    Saturday 3/30
    Day
    68°
    Partly Sunny
    Forecast day icon
    Night
    50°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the upper 60s. West winds 10 to 15 mph with gusts up to 25 mph.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A 30 percent chance of showers. Lows in the mid 40s.
  • Forecast day icon
    Sunday
    60% Chance of Storms
    64°
    Forecast night icon
    Night
    70% Chance of Storms
    56°
    Sunday 3/31
    Day
    64°
    60% Chance of Storms
    Forecast day icon
    Night
    56°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers in the morning then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 60 percent.
    Night Details
    Showers likely with a chance of thunderstorms. Lows in the lower 50s. Chance of rain 70 percent.
  • Forecast day icon
    Monday
    80% Chance of Storms
    70°
    Forecast night icon
    Night
    70% Chance of Storms
    52°
    Monday 4/1
    Day
    70°
    80% Chance of Storms
    Forecast day icon
    Night
    52°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    A chance of thunderstorms. Showers. Highs in the lower 70s. Chance of rain 80 percent.
    Night Details
    A chance of thunderstorms. Showers likely mainly in the evening. Lows in the mid 40s. Chance of rain 70 percent.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    54°
    Forecast night icon
    Night
    Partly Cloudy
    39°
    Tuesday 4/2
    Day
    54°
    50% Chance of Storms
    Forecast day icon
    Night
    39°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers and thunderstorms in the morning then partly sunny in the afternoon. Cooler with highs in the upper 50s. Chance of rain 50 percent.
    Night Details
    Partly cloudy. Cooler with lows in the mid 30s.
  • Forecast day icon
    Wednesday
    Sunny
    53°
    Forecast night icon
    Night
    Mostly Clear
    39°
    Wednesday 4/3
    Day
    53°
    Sunny
    Forecast day icon
    Night
    39°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. Highs in the mid 50s.
    Night Details
    Mostly clear. Low temperature around 39F. Dew point will be around 35F with an average humidity of 72%. Winds will be 6 mph from the NW.
  • Forecast day icon
    Thursday
    Sunny
    63°
    Forecast night icon
    Night
    Clear
    44°
    Thursday 4/4
    Day
    63°
    Sunny
    Forecast day icon
    Night
    44°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 63F. Dew point will be around 36F with an average humidity of 56%. Winds will be 4 mph from the W.
    Night Details
    Clear. Low temperature around 44F. Dew point will be around 40F with an average humidity of 68%. Winds will be 3 mph from the SE.
  • Forecast day icon
    Friday
    Sunny
    64°
    Forecast night icon
    Night
    Mostly Clear
    49°
    Friday 4/5
    Day
    64°
    Sunny
    Forecast day icon
    Night
    49°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 64F. Dew point will be around 42F with an average humidity of 59%. Winds will be 6 mph from the S.
    Night Details
    Mostly clear. Low temperature around 49F. Dew point will be around 45F with an average humidity of 72%. Winds will be 6 mph from the SE.
  • Forecast day icon
    Saturday
    Partly Cloudy
    66°
    Forecast night icon
    Night
    40% Chance of Rain
    48°
    Saturday 4/6
    Day
    66°
    Partly Cloudy
    Forecast day icon
    Night
    48°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 66F. Dew point will be around 47F with an average humidity of 64%. Winds will be 9 mph from the S.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 48F. Dew point will be around 47F with an average humidity of 75%. Winds will be 4 mph from the SE.