Johnston City, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Sunday
    Partly Sunny
    76°
    Forecast night icon
    Night
    70% Chance of Storms
    64°
    Sunday 5/5
    Day
    76°
    Partly Sunny
    Forecast day icon
    Night
    64°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy this morning then partly sunny with a slight chance of showers this afternoon. Highs in the upper 70s. North winds around 5 mph. Chance of rain 20 percent.
    Night Details
    Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening then showers likely after midnight. Lows in the lower 60s. Northeast winds around 5 mph. Chance of rain 70 percent.
  • Forecast day icon
    Monday
    80% Chance of Storms
    76°
    Forecast night icon
    Night
    50% Chance of Storms
    68°
    Monday 5/6
    Day
    76°
    80% Chance of Storms
    Forecast day icon
    Night
    68°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    A chance of thunderstorms. Showers. Highs in the mid 70s. East winds 5 to 10 mph becoming south in the afternoon. Chance of rain 80 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the mid 60s. South winds 10 to 15 mph. Chance of rain 50 percent.
  • Forecast day icon
    Tuesday
    80% Chance of Storms
    82°
    Forecast night icon
    Night
    70% Chance of Storms
    63°
    Tuesday 5/7
    Day
    82°
    80% Chance of Storms
    Forecast day icon
    Night
    63°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    A chance of thunderstorms. Showers. Highs in the lower 80s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 80 percent.
    Night Details
    A chance of thunderstorms. Showers likely mainly in the evening. Lows in the lower 60s. Chance of rain 70 percent.
  • Forecast day icon
    Wednesday
    80% Chance of Storms
    80°
    Forecast night icon
    Night
    70% Chance of Storms
    64°
    Wednesday 5/8
    Day
    80°
    80% Chance of Storms
    Forecast day icon
    Night
    64°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. A chance of showers and thunderstorms in the morning then showers with thunderstorms likely in the afternoon. Highs in the lower 80s. Chance of rain 80 percent.
    Night Details
    Showers and thunderstorms likely mainly in the evening. Lows around 60. Chance of rain 70 percent.
  • Forecast day icon
    Thursday
    Sunny
    78°
    Forecast night icon
    Night
    Partly Cloudy
    55°
    Thursday 5/9
    Day
    78°
    Sunny
    Forecast day icon
    Night
    55°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 70s.
    Night Details
    Partly cloudy. Lows in the mid 50s. Highs in the upper 60s.
  • Forecast day icon
    Friday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Mostly Clear
    50°
    Friday 5/10
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    50°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Lows in the mid 50s. Highs in the upper 60s.
    Night Details
    Mostly clear. Lows in the upper 40s. Highs in the lower 70s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    Mostly Clear
    50°
    Saturday 5/11
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    50°
    Mostly Clear
    Forecast night icon
    Day Details
    Mostly clear. Lows in the upper 40s. Highs in the lower 70s.
    Night Details
    Mostly clear. Low temperature around 50F. Dew point will be around 43F with an average humidity of 64%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Sunday
    Sunny
    70°
    Forecast night icon
    Night
    Clear
    53°
    Sunday 5/12
    Day
    70°
    Sunny
    Forecast day icon
    Night
    53°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 70F. Dew point will be around 48F with an average humidity of 60%. Winds will be 6 mph from the NW.
    Night Details
    Clear. Low temperature around 53F. Dew point will be around 48F with an average humidity of 71%. Winds will be 3 mph from the SW.
  • Forecast day icon
    Monday
    Sunny
    72°
    Forecast night icon
    Night
    Clear
    55°
    Monday 5/13
    Day
    72°
    Sunny
    Forecast day icon
    Night
    55°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 72F. Dew point will be around 52F with an average humidity of 63%. Winds will be 2 mph from the W.
    Night Details
    Clear. Low temperature around 55F. Dew point will be around 51F with an average humidity of 72%. Winds will be 3 mph from the S.
  • Forecast day icon
    Tuesday
    Sunny
    73°
    Forecast night icon
    Night
    Mostly Clear
    59°
    Tuesday 5/14
    Day
    73°
    Sunny
    Forecast day icon
    Night
    59°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 73F. Dew point will be around 54F with an average humidity of 65%. Winds will be 4 mph from the SE.
    Night Details
    Mostly clear. Low temperature around 59F. Dew point will be around 55F with an average humidity of 74%. Winds will be 6 mph from the S.