Cortland, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Tuesday
    Thunderstorms
    71°
    Forecast night icon
    Night
    Mostly Clear
    53°
    Tuesday 5/7
    Day
    71°
    Thunderstorms
    Forecast day icon
    Night
    53°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Becoming partly cloudy late in the afternoon. Showers with thunderstorms likely in the morning then a chance of thunderstorms in the afternoon. Highs in the mid 70s. Southeast winds 10 to 20 mph in the morning becoming southwest 10 to 15 mph in the afternoon. Gusts up to 25 mph. Chance of precipitation near 100 percent.
    Night Details
    Mostly clear. A slight chance of thunderstorms in the evening. Lows in the lower 50s. Southwest winds 10 to 15 mph. Chance of precipitation 20 percent.
  • Forecast day icon
    Wednesday
    40% Chance of Storms
    76°
    Forecast night icon
    Night
    70% Chance of Storms
    49°
    Wednesday 5/8
    Day
    76°
    40% Chance of Storms
    Forecast day icon
    Night
    49°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then mostly cloudy with a chance of thunderstorms in the afternoon. Highs in the upper 70s. South winds 5 to 10 mph. Chance of precipitation 40 percent.
    Night Details
    Showers likely with a chance of thunderstorms. Lows in the lower 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 70 percent.
  • Forecast day icon
    Thursday
    60% Chance of Storms
    57°
    Forecast night icon
    Night
    Partly Cloudy
    41°
    Thursday 5/9
    Day
    57°
    60% Chance of Storms
    Forecast day icon
    Night
    41°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Showers likely with a slight chance of thunderstorms. Highs in the upper 50s. North winds 10 to 20 mph with gusts up to 25 mph. Chance of precipitation 60 percent.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 40s.
  • Forecast day icon
    Friday
    Partly Cloudy
    62°
    Forecast night icon
    Night
    40% Chance of Storms
    46°
    Friday 5/10
    Day
    62°
    Partly Cloudy
    Forecast day icon
    Night
    46°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny in the morning then becoming partly cloudy. Highs in the mid 60s.
    Night Details
    Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 40s. Chance of precipitation 40 percent.
  • Forecast day icon
    Saturday
    60% Chance of Storms
    61°
    Forecast night icon
    Night
    Partly Cloudy
    42°
    Saturday 5/11
    Day
    61°
    60% Chance of Storms
    Forecast day icon
    Night
    42°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy 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 60s. Chance of precipitation 60 percent.
    Night Details
    Partly cloudy in the evening then clearing. Lows in the mid 40s.
  • Forecast day icon
    Sunday
    Partly Cloudy
    67°
    Forecast night icon
    Night
    Partly Cloudy
    55°
    Sunday 5/12
    Day
    67°
    Partly Cloudy
    Forecast day icon
    Night
    55°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny in the morning then becoming partly cloudy. Highs around 70.
    Night Details
    Partly cloudy. Lows around 50.
  • Forecast day icon
    Monday
    Partly Cloudy
    77°
    Forecast night icon
    Night
    30% Chance of Rain
    51°
    Monday 5/13
    Day
    77°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy in the morning then clearing. Highs in the mid 70s.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 51F. Dew point will be around 50F with an average humidity of 71%. Winds will be 6 mph from the SW.
  • Forecast day icon
    Tuesday
    40% Chance of Rain
    68°
    Forecast night icon
    Night
    30% Chance of Rain
    51°
    Tuesday 5/14
    Day
    68°
    40% Chance of Rain
    Forecast day icon
    Night
    51°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a chance of rain. Chance of precipitation 35%. High temperature around 68F. Dew point will be around 46F with an average humidity of 54%. Winds will be 6 mph from the W.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 51F. Dew point will be around 44F with an average humidity of 64%. Winds will be 2 mph from the SW.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    70°
    Forecast night icon
    Night
    40% Chance of Rain
    54°
    Wednesday 5/15
    Day
    70°
    40% Chance of Rain
    Forecast day icon
    Night
    54°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a chance of rain. Chance of precipitation 40%. High temperature around 70F. Dew point will be around 46F with an average humidity of 53%. Winds will be 3 mph from the SW.
    Night Details
    Mostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 54F. Dew point will be around 47F with an average humidity of 65%. Winds will be 4 mph from the S.
  • Forecast day icon
    Thursday
    40% Chance of Rain
    71°
    Forecast night icon
    Night
    40% Chance of Rain
    54°
    Thursday 5/16
    Day
    71°
    40% Chance of Rain
    Forecast day icon
    Night
    54°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a 35% chance for rain and thunderstorms. High temperature around 71F. Dew point will be around 50F with an average humidity of 58%. Winds will be 6 mph from the SW.
    Night Details
    Mostly clear with a 35% chance for rain and thunderstorms. Low temperature around 54F. Dew point will be around 48F with an average humidity of 66%. Winds will be 5 mph from the SW.