Decatur, Iowa | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    69°
    Forecast night icon
    Night
    Mostly Cloudy
    54°
    Tuesday 5/14
    Day
    69°
    50% Chance of Storms
    Forecast day icon
    Night
    54°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the upper 60s. Northeast winds around 10 mph. Chance of rain 50 percent.
    Night Details
    Mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph.
  • Forecast day icon
    Wednesday
    Partly Sunny
    74°
    Forecast night icon
    Night
    70% Chance of Storms
    58°
    Wednesday 5/15
    Day
    74°
    Partly Sunny
    Forecast day icon
    Night
    58°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then becoming mostly cloudy. Highs in the lower 70s. East winds around 5 mph.
    Night Details
    Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening then showers likely after midnight. Lows in the mid 50s. Southeast winds around 5 mph. Chance of rain 70 percent.
  • Forecast day icon
    Thursday
    70% Chance of Storms
    77°
    Forecast night icon
    Night
    30% Chance of Storms
    54°
    Thursday 5/16
    Day
    77°
    70% Chance of Storms
    Forecast day icon
    Night
    54°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a chance of thunderstorms. Highs in the mid 70s. Southeast winds 5 to 10 mph becoming southwest in the afternoon. Chance of rain 70 percent.
    Night Details
    A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 30 percent.
  • Forecast day icon
    Friday
    40% Chance Rain Showers
    81°
    Forecast night icon
    Night
    Mostly Clear
    59°
    Friday 5/17
    Day
    81°
    40% Chance Rain Showers
    Forecast day icon
    Night
    59°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 40 percent.
    Night Details
    Mostly clear. Lows in the upper 50s.
  • Forecast day icon
    Saturday
    Sunny
    86°
    Forecast night icon
    Night
    Mostly Clear
    63°
    Saturday 5/18
    Day
    86°
    Sunny
    Forecast day icon
    Night
    63°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 80s.
    Night Details
    Mostly clear. Lows in the upper 50s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    86°
    Forecast night icon
    Night
    Partly Cloudy
    57°
    Sunday 5/19
    Day
    86°
    Mostly Sunny
    Forecast day icon
    Night
    57°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the lower 80s.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s.
  • Forecast day icon
    Monday
    Mostly Sunny
    84°
    Forecast night icon
    Night
    60% Chance of Storms
    62°
    Monday 5/20
    Day
    84°
    Mostly Sunny
    Forecast day icon
    Night
    62°
    60% Chance of Storms
    Forecast night icon
    Day Details
    Mostly sunny. Highs in the upper 70s.
    Night Details
    Partly cloudy with a 55% chance for rain and thunderstorms. Low temperature around 62F. Dew point will be around 60F with an average humidity of 70%. Winds will be 9 mph from the SE.
  • Forecast day icon
    Tuesday
    60% Chance of Storms
    80°
    Forecast night icon
    Night
    50% Chance of Rain
    59°
    Tuesday 5/21
    Day
    80°
    60% Chance of Storms
    Forecast day icon
    Night
    59°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 65% chance for rain and thunderstorms. High temperature around 80F. Dew point will be around 61F with an average humidity of 68%. Winds will be 2 mph from the S.
    Night Details
    Clear with a 45% chance for rain and thunderstorms. Low temperature around 59F. Dew point will be around 58F with an average humidity of 73%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Wednesday
    30% Chance of Rain
    79°
    Forecast night icon
    Night
    30% Chance of Rain
    56°
    Wednesday 5/22
    Day
    79°
    30% Chance of Rain
    Forecast day icon
    Night
    56°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a 25% chance for rain and thunderstorms. High temperature around 79F. Dew point will be around 57F with an average humidity of 64%. Winds will be 4 mph from the NW.
    Night Details
    Clear with a 30% chance for rain and thunderstorms. Low temperature around 56F. Dew point will be around 55F with an average humidity of 71%. Winds will be 2 mph from the NW.
  • Forecast day icon
    Thursday
    Sunny
    78°
    Forecast night icon
    Night
    30% Chance of Rain
    58°
    Thursday 5/23
    Day
    78°
    Sunny
    Forecast day icon
    Night
    58°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 78F. Dew point will be around 57F with an average humidity of 65%. Winds will be 2 mph from the SE.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 58F. Dew point will be around 56F with an average humidity of 71%. Winds will be 3 mph from the S.