Decatur, Iowa | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Clear
    62°
    Friday 5/17
    Forecast night icon
    62°
    Clear
    Hourly
    Night Details
    Clear. Low temperature around 62F. Dew point will be around 57F with an average humidity of 84%. Winds will be 6 mph from the S.
  • Forecast day icon
    Saturday
    Sunny
    88°
    Forecast night icon
    Night
    Mostly Clear
    61°
    Saturday 5/18
    Day
    88°
    Sunny
    Forecast day icon
    Night
    61°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Isolated showers and thunderstorms this afternoon. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph becoming southwest this afternoon. Chance of rain 20 percent.
    Night Details
    Mostly clear. Isolated showers and thunderstorms in the evening. Lows in the mid 50s. Northwest winds 5 to 10 mph becoming north after midnight. Chance of rain 20 percent.
  • Forecast day icon
    Sunday
    40% Chance of Storms
    87°
    Forecast night icon
    Night
    80% Chance of Storms
    68°
    Sunday 5/19
    Day
    87°
    40% Chance of Storms
    Forecast day icon
    Night
    68°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. East winds 5 to 10 mph becoming southeast in the afternoon. Chance of rain 40 percent.
    Night Details
    Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening then showers after midnight. Lows in the mid 60s. South winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent.
  • Forecast day icon
    Monday
    80% Chance of Storms
    82°
    Forecast night icon
    Night
    60% Chance of Storms
    70°
    Monday 5/20
    Day
    82°
    80% Chance of Storms
    Forecast day icon
    Night
    70°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    A chance of thunderstorms. Showers with highs in the lower 80s. South winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent.
    Night Details
    Showers likely. Thunderstorms likely mainly in the evening. Lows in the mid 60s. Chance of rain 60 percent.
  • Forecast day icon
    Tuesday
    80% Chance of Storms
    81°
    Forecast night icon
    Night
    40% Chance of Storms
    58°
    Tuesday 5/21
    Day
    81°
    80% Chance of Storms
    Forecast day icon
    Night
    58°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a chance of thunderstorms in the morning then showers with thunderstorms likely in the afternoon. Highs in the lower 80s. Chance of rain 80 percent.
    Night Details
    Partly cloudy with a chance of showers and thunderstorms in the evening then mostly clear after midnight. Lows in the lower 50s. Chance of rain 40 percent.
  • Forecast day icon
    Wednesday
    30% Chance Rain Showers
    72°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Wednesday 5/22
    Day
    72°
    30% Chance Rain Showers
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly clear. Lows around 50.
  • Forecast day icon
    Thursday
    Mostly Sunny
    76°
    Forecast night icon
    Night
    40% Chance Rain Showers
    57°
    Thursday 5/23
    Day
    76°
    Mostly Sunny
    Forecast day icon
    Night
    57°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 70s.
    Night Details
    Partly cloudy. A chance of showers after midnight. Lows in the lower 50s. Chance of rain 40 percent.
  • Forecast day icon
    Friday
    40% Chance of Storms
    77°
    Forecast night icon
    Night
    50% Chance of Rain
    60°
    Friday 5/24
    Day
    77°
    40% Chance of Storms
    Forecast day icon
    Night
    60°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 70s. Chance of rain 40 percent.
    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 78%. Winds will be 4 mph from the SE.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    76°
    Forecast night icon
    Night
    50% Chance of Rain
    61°
    Saturday 5/25
    Day
    76°
    50% Chance of Rain
    Forecast day icon
    Night
    61°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 76F. Dew point will be around 59F with an average humidity of 71%. Winds will be 2 mph from the S.
    Night Details
    Partly cloudy with a 45% chance for rain and thunderstorms. Low temperature around 61F. Dew point will be around 60F with an average humidity of 79%. Winds will be 1 mph from the SE.
  • Forecast day icon
    Sunday
    50% Chance of Storms
    76°
    Forecast night icon
    Night
    40% Chance of Storms
    60°
    Sunday 5/26
    Day
    76°
    50% Chance of Storms
    Forecast day icon
    Night
    60°
    40% Chance of Storms
    Forecast night icon
    Day Details
    Partly cloudy with a 50% chance for rain and thunderstorms. High temperature around 76F. Dew point will be around 60F with an average humidity of 70%. Winds will be 1 mph from the S.
    Night Details
    Partly cloudy with a 55% chance for rain and thunderstorms. Low temperature around 60F. Dew point will be around 58F with an average humidity of 78%. Winds will be 2 mph from the NE.