Vandalia, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    64°
    Sunday 5/12
    Forecast night icon
    64°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Low temperature around 64F. Dew point will be around 50F with an average humidity of 68%. Winds will be 8 mph from the S.
  • Forecast day icon
    Monday
    Scattered Showers
    72°
    Forecast night icon
    Night
    70% Chance of Storms
    64°
    Monday 5/13
    Day
    72°
    Scattered Showers
    Forecast day icon
    Night
    64°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Scattered showers with isolated thunderstorms this morning then showers and scattered thunderstorms this afternoon. Highs in the lower 70s. Temperature falling into the upper 60s this afternoon. South winds 10 to 15 mph. Chance of rain 90 percent.
    Night Details
    Numerous showers and scattered thunderstorms. Patchy fog after midnight. Lows in the lower 60s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.
  • Forecast day icon
    Tuesday
    Scattered Thunderstorms
    69°
    Forecast night icon
    Night
    50% Chance of Storms
    58°
    Tuesday 5/14
    Day
    69°
    Scattered Thunderstorms
    Forecast day icon
    Night
    58°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Scattered thunderstorms. Showers. Highs in the lower 70s. East winds around 5 mph becoming northeast with gusts up to 20 mph in the afternoon. Chance of rain 90 percent.
    Night Details
    Mostly cloudy. Scattered showers and thunderstorms in the evening. Lows in the mid 50s. North winds 10 to 15 mph. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    74°
    Forecast night icon
    Night
    Partly Cloudy
    59°
    Wednesday 5/15
    Day
    74°
    Mostly Sunny
    Forecast day icon
    Night
    59°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 70s. North winds around 10 mph.
    Night Details
    Partly cloudy. Lows in the mid 50s.
  • Forecast day icon
    Thursday
    60% Chance of Storms
    76°
    Forecast night icon
    Night
    50% Chance of Storms
    60°
    Thursday 5/16
    Day
    76°
    60% Chance of Storms
    Forecast day icon
    Night
    60°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers in the morning then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 60 percent.
    Night Details
    Mostly cloudy with a chance of showers and thunderstorms. Lows around 60. Chance of rain 50 percent.
  • Forecast day icon
    Friday
    50% Chance of Storms
    77°
    Forecast night icon
    Night
    Partly Cloudy
    60°
    Friday 5/17
    Day
    77°
    50% Chance of Storms
    Forecast day icon
    Night
    60°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning then a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 50 percent.
    Night Details
    Partly cloudy in the evening then clearing. A slight chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 20 percent.
  • Forecast day icon
    Saturday
    30% Chance Rain Showers
    82°
    Forecast night icon
    Night
    30% Chance Rain Showers
    63°
    Saturday 5/18
    Day
    82°
    30% Chance Rain Showers
    Forecast day icon
    Night
    63°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. A 30 percent chance of showers. Highs in the lower 80s. Lows in the lower 60s.
    Night Details
    Mostly clear. A 30 percent chance of showers. Highs in the lower 80s. Lows in the lower 60s.
  • Forecast day icon
    Sunday
    40% Chance of Storms
    81°
    Forecast night icon
    Night
    40% Chance of Rain
    62°
    Sunday 5/19
    Day
    81°
    40% Chance of Storms
    Forecast day icon
    Night
    62°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 40 percent.
    Night Details
    Clear with a chance of rain. Chance of precipitation 35%. Low temperature around 62F. Dew point will be around 60F with an average humidity of 79%. Winds will be 3 mph from the W.
  • Forecast day icon
    Monday
    30% Chance of Rain
    77°
    Forecast night icon
    Night
    30% Chance of Rain
    61°
    Monday 5/20
    Day
    77°
    30% Chance of Rain
    Forecast day icon
    Night
    61°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 77F. Dew point will be around 57F with an average humidity of 62%. Winds will be 5 mph from the W.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 61F. Dew point will be around 59F with an average humidity of 77%. Winds will be 3 mph from the W.
  • Forecast day icon
    Tuesday
    30% Chance of Rain
    76°
    Forecast night icon
    Night
    40% Chance of Rain
    61°
    Tuesday 5/21
    Day
    76°
    30% Chance of Rain
    Forecast day icon
    Night
    61°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 76F. Dew point will be around 56F with an average humidity of 62%. Winds will be 3 mph from the W.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 40%. Low temperature around 61F. Dew point will be around 59F with an average humidity of 79%. Winds will be 2 mph from the S.