Decatur, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    Sunny
    61°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Thursday 3/28
    Day
    61°
    Sunny
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. High temperature around 61F. Dew point will be around 30F with an average humidity of 53%. Winds will be 0 mph from the S.
    Night Details
    Partly cloudy. A chance of sprinkles this evening. Not as cool with lows in the upper 30s. Southwest winds 10 to 15 mph.
  • Forecast day icon
    Friday
    Mostly Sunny
    67°
    Forecast night icon
    Night
    60% Chance of Storms
    56°
    Friday 3/29
    Day
    67°
    Mostly Sunny
    Forecast day icon
    Night
    56°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 60s. Southwest winds 10 to 15 mph.
    Night Details
    A slight chance of thunderstorms. Showers likely mainly in the evening. Not as cool with lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 60 percent.
  • Forecast day icon
    Saturday
    Partly Sunny
    66°
    Forecast night icon
    Night
    40% Chance Rain Showers
    48°
    Saturday 3/30
    Day
    66°
    Partly Sunny
    Forecast day icon
    Night
    48°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs around 70. West winds 15 to 20 mph with gusts up to 30 mph.
    Night Details
    Mostly cloudy with a 40 percent chance of showers. Lows in the mid 40s. Northwest winds around 10 mph becoming northeast after midnight.
  • Forecast day icon
    Sunday
    60% Chance of Storms
    63°
    Forecast night icon
    Night
    70% Chance of Storms
    55°
    Sunday 3/31
    Day
    63°
    60% Chance of Storms
    Forecast day icon
    Night
    55°
    70% 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 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
    49°
    Monday 4/1
    Day
    70°
    80% Chance of Storms
    Forecast day icon
    Night
    49°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    A chance of thunderstorms. Showers. Highs in the upper 60s. 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
    51°
    Forecast night icon
    Night
    Partly Cloudy
    39°
    Tuesday 4/2
    Day
    51°
    50% Chance of Storms
    Forecast day icon
    Night
    39°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers and thunderstorms in the morning. Cooler with highs in the upper 50s. Chance of rain 50 percent.
    Night Details
    Partly cloudy. Lows in the mid 30s. Highs in the lower 50s.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    50°
    Forecast night icon
    Night
    Mostly Clear
    37°
    Wednesday 4/3
    Day
    50°
    Partly Cloudy
    Forecast day icon
    Night
    37°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly cloudy. Lows in the mid 30s. Highs in the lower 50s.
    Night Details
    Mostly clear. Lows in the mid 30s. Highs in the lower 60s.
  • Forecast day icon
    Thursday
    Mostly Sunny
    62°
    Forecast night icon
    Night
    Clear
    45°
    Thursday 4/4
    Day
    62°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Clear
    Forecast night icon
    Day Details
    Mostly clear. Lows in the mid 30s. Highs in the lower 60s.
    Night Details
    Clear. Low temperature around 45F. Dew point will be around 38F with an average humidity of 65%. Winds will be 4 mph from the SE.
  • Forecast day icon
    Friday
    Sunny
    66°
    Forecast night icon
    Night
    Mostly Clear
    48°
    Friday 4/5
    Day
    66°
    Sunny
    Forecast day icon
    Night
    48°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 66F. Dew point will be around 43F with an average humidity of 57%. Winds will be 5 mph from the SE.
    Night Details
    Mostly clear. Low temperature around 48F. Dew point will be around 43F with an average humidity of 67%. Winds will be 5 mph from the SE.
  • Forecast day icon
    Saturday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    Mostly Clear
    49°
    Saturday 4/6
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    49°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 65F. Dew point will be around 44F with an average humidity of 59%. Winds will be 7 mph from the SE.
    Night Details
    Mostly clear. Low temperature around 49F. Dew point will be around 44F with an average humidity of 70%. Winds will be 6 mph from the SE.