Iona, South Dakota | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    36°
    Thursday 5/2
    Forecast night icon
    36°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Near steady temperature in the upper 30s. West winds around 5 mph.
  • Forecast day icon
    Friday
    70% Chance Rain Showers
    45°
    Forecast night icon
    Night
    Partly Cloudy
    30°
    Friday 5/3
    Day
    45°
    70% Chance Rain Showers
    Forecast day icon
    Night
    30°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Rain showers likely. Highs in the upper 40s. Northwest winds 10 to 15 mph. Chance of rain 70 percent.
    Night Details
    Partly cloudy in the evening then clearing. Lows around 30. West winds 5 to 10 mph.
  • Forecast day icon
    Saturday
    Sunny
    60°
    Forecast night icon
    Night
    Clear
    41°
    Saturday 5/4
    Day
    60°
    Sunny
    Forecast day icon
    Night
    41°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the lower 60s. West winds 5 to 10 mph.
    Night Details
    Clear. Lows in the lower 40s. Southeast winds 10 to 20 mph.
  • Forecast day icon
    Sunday
    Windy
    67°
    Forecast night icon
    Night
    60% Chance of Storms
    55°
    Sunday 5/5
    Day
    67°
    Windy
    Forecast day icon
    Night
    55°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Sunny in the morning then becoming partly cloudy. Windy with highs around 70. Southeast winds 20 to 30 mph increasing to south 30 to 40 mph in the afternoon. Gusts up to 50 mph.
    Night Details
    Mostly cloudy. A chance of showers in the evening then showers likely with a slight chance of thunderstorms after midnight. Windy with lows in the mid 50s. Chance of rain 60 percent.
  • Forecast day icon
    Monday
    80% Chance of Storms
    65°
    Forecast night icon
    Night
    60% Chance of Storms
    47°
    Monday 5/6
    Day
    65°
    80% Chance of Storms
    Forecast day icon
    Night
    47°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a slight chance of thunderstorms in the morning then showers with a chance of thunderstorms in the afternoon. Breezy with highs in the upper 60s. Chance of rain 80 percent.
    Night Details
    Partly cloudy. Showers likely with a chance of thunderstorms in the evening then a chance of showers with a slight chance of thunderstorms after midnight. Breezy with lows in the mid 40s. Chance of rain 60 percent.
  • Forecast day icon
    Tuesday
    40% Chance Rain Showers
    60°
    Forecast night icon
    Night
    40% Chance Rain Showers
    43°
    Tuesday 5/7
    Day
    60°
    40% Chance Rain Showers
    Forecast day icon
    Night
    43°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy with a 40 percent chance of showers. Windy with highs in the lower 60s.
    Night Details
    Partly cloudy with a 40 percent chance of showers. Breezy with lows in the lower 40s.
  • Forecast day icon
    Wednesday
    40% Chance Rain Showers
    56°
    Forecast night icon
    Night
    40% Chance Rain Showers
    43°
    Wednesday 5/8
    Day
    56°
    40% Chance Rain Showers
    Forecast day icon
    Night
    43°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. A slight chance of showers in the morning then a chance of showers in the afternoon. Breezy with highs in the upper 50s. Chance of rain 40 percent.
    Night Details
    Partly cloudy with a 40 percent chance of showers. Breezy with lows in the lower 40s.
  • Forecast day icon
    Thursday
    40% Chance Rain Showers
    57°
    Forecast night icon
    Night
    30% Chance of Rain
    40°
    Thursday 5/9
    Day
    57°
    40% Chance Rain Showers
    Forecast day icon
    Night
    40°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a 40 percent chance of showers. Highs in the upper 50s.
    Night Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 40F. Dew point will be around 39F with an average humidity of 78%. Winds will be 11 mph from the NW.
  • Forecast day icon
    Friday
    40% Chance of Rain
    57°
    Forecast night icon
    Night
    Mostly Clear
    41°
    Friday 5/10
    Day
    57°
    40% Chance of Rain
    Forecast day icon
    Night
    41°
    Mostly Clear
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 57F. Dew point will be around 40F with an average humidity of 65%. Winds will be 10 mph from the N.
    Night Details
    Mostly clear. Low temperature around 41F. Dew point will be around 38F with an average humidity of 72%. Winds will be 5 mph from the W.
  • Forecast day icon
    Saturday
    Mostly Sunny
    64°
    Forecast night icon
    Night
    Partly Cloudy
    44°
    Saturday 5/11
    Day
    64°
    Mostly Sunny
    Forecast day icon
    Night
    44°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 64F. Dew point will be around 39F with an average humidity of 57%. Winds will be 2 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 44F. Dew point will be around 40F with an average humidity of 67%. Winds will be 3 mph from the S.
  • Forecast day icon
    Sunday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    46°
    Sunday 5/12
    Day
    69°
    Sunny
    Forecast day icon
    Night
    46°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 69F. Dew point will be around 42F with an average humidity of 53%. Winds will be 4 mph from the SE.
    Night Details
    Clear. Low temperature around 46F. Dew point will be around 42F with an average humidity of 66%. Winds will be 4 mph from the SE.