Decatur, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    50% Chance of Storms
    68°
    Forecast night icon
    Night
    40% Chance of Storms
    53°
    Thursday 5/9
    Day
    68°
    50% Chance of Storms
    Forecast day icon
    Night
    53°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers and thunderstorms. Cooler. Near steady temperature in the upper 60s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
    Night Details
    Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening then a slight chance of showers after midnight. Cooler with lows in the upper 40s. North winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
  • Forecast day icon
    Friday
    Partly Sunny
    65°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Friday 5/10
    Day
    65°
    Partly Sunny
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly sunny. Highs in the upper 60s. Northwest winds around 10 mph.
    Night Details
    Partly cloudy. Lows in the lower 50s. West winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Sunny
    69°
    Forecast night icon
    Night
    Mostly Clear
    52°
    Saturday 5/11
    Day
    69°
    Sunny
    Forecast day icon
    Night
    52°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the lower 70s. Northwest winds 15 to 20 mph with gusts up to 30 mph.
    Night Details
    Mostly clear. Lows around 50. Highs in the upper 70s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    75°
    Forecast night icon
    Night
    Partly Cloudy
    60°
    Sunday 5/12
    Day
    75°
    Mostly Sunny
    Forecast day icon
    Night
    60°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows around 50. Highs in the upper 70s.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 50s.
  • Forecast day icon
    Monday
    60% Chance of Storms
    74°
    Forecast night icon
    Night
    60% Chance of Storms
    58°
    Monday 5/13
    Day
    74°
    60% Chance of Storms
    Forecast day icon
    Night
    58°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a chance of thunderstorms. Highs in the mid 70s. Lows in the upper 50s. Chance of rain 60 percent.
    Night Details
    Showers likely with a chance of thunderstorms. Highs in the mid 70s. Lows in the upper 50s. Chance of rain 60 percent.
  • Forecast day icon
    Tuesday
    60% Chance of Storms
    69°
    Forecast night icon
    Night
    50% Chance of Storms
    60°
    Tuesday 5/14
    Day
    69°
    60% Chance of Storms
    Forecast day icon
    Night
    60°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a chance of thunderstorms. Highs in the mid 70s. Lows in the upper 50s. Chance of rain 60 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms in the evening then partly cloudy after midnight. Lows in the mid 50s. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    40% Chance Rain Showers
    74°
    Forecast night icon
    Night
    40% Chance of Rain
    61°
    Wednesday 5/15
    Day
    74°
    40% Chance Rain Showers
    Forecast day icon
    Night
    61°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 40 percent.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 61F. Dew point will be around 60F with an average humidity of 86%. Winds will be 3 mph from the SE.
  • Forecast day icon
    Thursday
    50% Chance of Rain
    74°
    Forecast night icon
    Night
    50% Chance of Rain
    60°
    Thursday 5/16
    Day
    74°
    50% Chance of Rain
    Forecast day icon
    Night
    60°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a 45% chance for rain and thunderstorms. High temperature around 74F. Dew point will be around 60F with an average humidity of 70%. Winds will be 4 mph from the S.
    Night Details
    Partly cloudy with a 50% chance for rain and thunderstorms. Low temperature around 60F. Dew point will be around 59F with an average humidity of 87%. Winds will be 2 mph from the S.
  • Forecast day icon
    Friday
    50% Chance of Rain
    69°
    Forecast night icon
    Night
    40% Chance of Rain
    58°
    Friday 5/17
    Day
    69°
    50% Chance of Rain
    Forecast day icon
    Night
    58°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 69F. Dew point will be around 58F with an average humidity of 73%. Winds will be 2 mph from the W.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 58F. Dew point will be around 56F with an average humidity of 82%. Winds will be 3 mph from the W.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    70°
    Forecast night icon
    Night
    40% Chance of Rain
    58°
    Saturday 5/18
    Day
    70°
    30% Chance of Rain
    Forecast day icon
    Night
    58°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 70F. Dew point will be around 55F with an average humidity of 67%. Winds will be 5 mph from the NW.
    Night Details
    Clear with a chance of rain. Chance of precipitation 35%. Low temperature around 58F. Dew point will be around 55F with an average humidity of 80%. Winds will be 4 mph from the NW.