Decatur, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Rain
    63°
    Monday 5/13
    Forecast night icon
    63°
    Rain
    Hourly
    Night Details
    Mostly cloudy with likely rain. Chance of precipitation 100%. Low temperature around 63F. Dew point will be around 62F with an average humidity of 94%. Winds will be 2 mph from the SE.
  • Forecast day icon
    Tuesday
    Thunderstorms
    67°
    Forecast night icon
    Night
    50% Chance of Storms
    56°
    Tuesday 5/14
    Day
    67°
    Thunderstorms
    Forecast day icon
    Night
    56°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers. A chance of thunderstorms this morning then thunderstorms likely this afternoon. Cooler with highs in the upper 60s. East winds around 10 mph. Chance of rain 90 percent.
    Night Details
    Mostly cloudy with a chance of showers. A chance of thunderstorms mainly in the evening. Lows in the mid 50s. Northeast winds 10 to 15 mph. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    Partly Sunny
    73°
    Forecast night icon
    Night
    Partly Cloudy
    57°
    Wednesday 5/15
    Day
    73°
    Partly Sunny
    Forecast day icon
    Night
    57°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly sunny. Highs in the mid 70s. North winds 10 to 15 mph.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.
  • Forecast day icon
    Thursday
    50% Chance of Storms
    70°
    Forecast night icon
    Night
    70% Chance of Storms
    58°
    Thursday 5/16
    Day
    70°
    50% Chance of Storms
    Forecast day icon
    Night
    58°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers in the morning then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. South winds 10 to 15 mph. Chance of rain 50 percent.
    Night Details
    A chance of thunderstorms. Showers likely mainly in the evening. Lows around 60. Chance of rain 70 percent.
  • Forecast day icon
    Friday
    60% Chance of Storms
    78°
    Forecast night icon
    Night
    30% Chance of Storms
    60°
    Friday 5/17
    Day
    78°
    60% Chance of Storms
    Forecast day icon
    Night
    60°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers in the morning then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 60 percent.
    Night Details
    Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 50s. Chance of rain 30 percent.
  • Forecast day icon
    Saturday
    Mostly Sunny
    83°
    Forecast night icon
    Night
    Mostly Clear
    64°
    Saturday 5/18
    Day
    83°
    Mostly Sunny
    Forecast day icon
    Night
    64°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs around 80. Lows in the lower 60s.
    Night Details
    Mostly clear. Highs around 80. Lows in the lower 60s.
  • Forecast day icon
    Sunday
    30% Chance of Storms
    85°
    Forecast night icon
    Night
    30% Chance of Storms
    61°
    Sunday 5/19
    Day
    85°
    30% Chance of Storms
    Forecast day icon
    Night
    61°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.
    Night Details
    Partly cloudy with a chance of showers and thunderstorms in the evening then mostly clear after midnight. Lows around 60. Chance of rain 30 percent.
  • Forecast day icon
    Monday
    30% Chance Rain Showers
    81°
    Forecast night icon
    Night
    30% Chance of Rain
    64°
    Monday 5/20
    Day
    81°
    30% Chance Rain Showers
    Forecast day icon
    Night
    64°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 64F. Dew point will be around 61F with an average humidity of 75%. Winds will be 5 mph from the S.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    78°
    Forecast night icon
    Night
    40% Chance of Rain
    62°
    Tuesday 5/21
    Day
    78°
    40% Chance of Rain
    Forecast day icon
    Night
    62°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 78F. Dew point will be around 61F with an average humidity of 65%. Winds will be 6 mph from the SW.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 62F. Dew point will be around 60F with an average humidity of 77%. Winds will be 4 mph from the SW.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    77°
    Forecast night icon
    Night
    40% Chance of Rain
    61°
    Wednesday 5/22
    Day
    77°
    40% Chance of Rain
    Forecast day icon
    Night
    61°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 35%. High temperature around 77F. Dew point will be around 60F with an average humidity of 64%. Winds will be 6 mph from the SW.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 61F. Dew point will be around 59F with an average humidity of 78%. Winds will be 2 mph from the W.