Decatur, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    40% Chance of Storms
    47°
    Thursday 4/18
    Forecast night icon
    47°
    40% Chance of Storms
    Hourly
    Night Details
    Cloudy. A chance of showers with a slight chance of thunderstorms late this evening then a slight chance of showers. Lows in the mid 40s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.
  • Forecast day icon
    Friday
    Partly Sunny
    56°
    Forecast night icon
    Night
    Mostly Cloudy
    42°
    Friday 4/19
    Day
    56°
    Partly Sunny
    Forecast day icon
    Night
    42°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny in the morning then becoming partly sunny. Much cooler with highs in the upper 50s. Northwest winds 10 to 15 mph with gusts up to 30 mph.
    Night Details
    Mostly cloudy. Lows around 40. Northwest winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Sunny
    54°
    Forecast night icon
    Night
    Partly Cloudy
    38°
    Saturday 4/20
    Day
    54°
    Sunny
    Forecast day icon
    Night
    38°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 50s. Northwest winds 15 to 20 mph.
    Night Details
    Partly cloudy. Areas of frost after midnight. Lows in the mid 30s. Northwest winds 10 to 15 mph.
  • Forecast day icon
    Sunday
    Sunny
    58°
    Forecast night icon
    Night
    Mostly Clear
    41°
    Sunday 4/21
    Day
    58°
    Sunny
    Forecast day icon
    Night
    41°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Areas of frost in the morning. Sunny. Highs in the upper 50s.
    Night Details
    Mostly clear. Lows in the upper 30s. Highs in the mid 60s.
  • Forecast day icon
    Monday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    50% Chance Rain Showers
    53°
    Monday 4/22
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    53°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the upper 30s. Highs in the mid 60s.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the lower 50s. Highs in the mid 60s. Chance of rain 50 percent.
  • Forecast day icon
    Tuesday
    50% Chance Rain Showers
    60°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Tuesday 4/23
    Day
    60°
    50% Chance Rain Showers
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers. Lows in the lower 50s. Highs in the mid 60s. Chance of rain 50 percent.
    Night Details
    Partly cloudy. Lows in the lower 40s.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    60°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Wednesday 4/24
    Day
    60°
    Mostly Sunny
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs around 60. Lows in the lower 40s.
    Night Details
    Mostly clear. Highs around 60. Lows in the lower 40s.
  • Forecast day icon
    Thursday
    Mostly Sunny
    61°
    Forecast night icon
    Night
    40% Chance of Rain
    52°
    Thursday 4/25
    Day
    61°
    Mostly Sunny
    Forecast day icon
    Night
    52°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny. Highs in the mid 60s.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 52F. Dew point will be around 43F with an average humidity of 66%. Winds will be 11 mph from the E.
  • Forecast day icon
    Friday
    60% Chance of Rain
    60°
    Forecast night icon
    Night
    70% Chance of Rain
    57°
    Friday 4/26
    Day
    60°
    60% Chance of Rain
    Forecast day icon
    Night
    57°
    70% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 60%. High temperature around 60F. Dew point will be around 47F with an average humidity of 70%. Winds will be 12 mph from the SE.
    Night Details
    Cloudy with probable rain. Chance of precipitation 70%. Low temperature around 57F. Dew point will be around 51F with an average humidity of 77%. Winds will be 10 mph from the SE.
  • Forecast day icon
    Saturday
    60% Chance of Rain
    68°
    Forecast night icon
    Night
    70% Chance of Rain
    62°
    Saturday 4/27
    Day
    68°
    60% Chance of Rain
    Forecast day icon
    Night
    62°
    70% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 60%. High temperature around 68F. Dew point will be around 56F with an average humidity of 73%. Winds will be 11 mph from the SE.
    Night Details
    Mostly cloudy with a 70% chance for rain and thunderstorms. Low temperature around 62F. Dew point will be around 57F with an average humidity of 77%. Winds will be 10 mph from the S.