Johnston, Iowa | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Thursday
    Partly Cloudy
    60°
    Forecast night icon
    Night
    Thunderstorms
    51°
    Thursday 4/25
    Day
    60°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. High temperature around 60F. Dew point will be around 41F with an average humidity of 59%. Winds will be 12 mph from the SE.
    Night Details
    Mostly cloudy. Showers and thunderstorms after midnight. Lows in the upper 40s. Southeast winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 90 percent.
  • Forecast day icon
    Friday
    Thunderstorms
    61°
    Forecast night icon
    Night
    80% Chance of Storms
    62°
    Friday 4/26
    Day
    61°
    Thunderstorms
    Forecast day icon
    Night
    62°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers and thunderstorms. Breezy with highs in the mid 60s. Southeast winds 20 to 25 mph with gusts up to 40 mph. Chance of rain near 100 percent.
    Night Details
    Showers and thunderstorms in the evening. Breezy with lows in the upper 50s. South winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 80 percent.
  • Forecast day icon
    Saturday
    50% Chance of Storms
    76°
    Forecast night icon
    Night
    Thunderstorms
    63°
    Saturday 4/27
    Day
    76°
    50% Chance of Storms
    Forecast day icon
    Night
    63°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
    Night Details
    Showers and thunderstorms. Lows around 60. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.
  • Forecast day icon
    Sunday
    Thunderstorms
    72°
    Forecast night icon
    Night
    70% Chance of Storms
    51°
    Sunday 4/28
    Day
    72°
    Thunderstorms
    Forecast day icon
    Night
    51°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Thunderstorms showers breezy with highs in the lower 70s. Chance of rain near 100 percent.
    Night Details
    Showers and thunderstorms likely mainly in the evening. Breezy with lows in the upper 40s. Chance of rain 70 percent.
  • Forecast day icon
    Monday
    Mostly Sunny
    63°
    Forecast night icon
    Night
    Mostly Clear
    52°
    Monday 4/29
    Day
    63°
    Mostly Sunny
    Forecast day icon
    Night
    52°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 60s.
    Night Details
    Mostly clear. Lows in the upper 40s.
  • Forecast day icon
    Tuesday
    30% Chance Rain Showers
    77°
    Forecast night icon
    Night
    40% Chance of Storms
    57°
    Tuesday 4/30
    Day
    77°
    30% Chance Rain Showers
    Forecast day icon
    Night
    57°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the lower 50s. Chance of rain 40 percent.
  • Forecast day icon
    Wednesday
    40% Chance Rain Showers
    76°
    Forecast night icon
    Night
    40% Chance Rain Showers
    57°
    Wednesday 5/1
    Day
    76°
    40% Chance Rain Showers
    Forecast day icon
    Night
    57°
    40% Chance Rain Showers
    Forecast night icon
    Day Details
    Mostly sunny with a 40 percent chance of showers. Highs in the mid 70s.
    Night Details
    Mostly clear with a 40 percent chance of showers. Lows around 50.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    72°
    Forecast night icon
    Night
    40% Chance of Rain
    55°
    Thursday 5/2
    Day
    72°
    30% Chance Rain Showers
    Forecast day icon
    Night
    55°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a 30 percent chance of showers. Highs in the lower 70s.
    Night Details
    Clear with a chance of rain. Chance of precipitation 40%. Low temperature around 55F. Dew point will be around 50F with an average humidity of 66%. Winds will be 3 mph from the E.
  • Forecast day icon
    Friday
    40% Chance of Rain
    69°
    Forecast night icon
    Night
    40% Chance of Rain
    57°
    Friday 5/3
    Day
    69°
    40% Chance of Rain
    Forecast day icon
    Night
    57°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 69F. Dew point will be around 52F with an average humidity of 66%. Winds will be 6 mph from the SE.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 57F. Dew point will be around 52F with an average humidity of 69%. Winds will be 6 mph from the SE.
  • Forecast day icon
    Saturday
    40% Chance of Rain
    70°
    Forecast night icon
    Night
    50% Chance of Rain
    58°
    Saturday 5/4
    Day
    70°
    40% Chance of Rain
    Forecast day icon
    Night
    58°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 70F. Dew point will be around 54F with an average humidity of 67%. Winds will be 8 mph from the S.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 58F. Dew point will be around 53F with an average humidity of 68%. Winds will be 4 mph from the S.