Illinois Weather Forecast

Check the Illinois weather forecast for the next 5 days before you head off on holiday. The 5-day forecast shows the prevailing weather conditions, maximum & minimum temperatures, hours of sunshine per day, wind speed & direction and more. Tomorrow's maximum temperature in Illinois is expected to be 3°C. The weather forecast shown below is for Chicago.

Illinois: 5-day weather forecast

Click on a symbol below to see the daily forecast in detail.

  • Saturday
    18th Nov
    Isolated thunderstorms (20-30 mm of rainfall expected)
  • Sunday
    19th Nov
    Scattered clouds
  • Monday
    20th Nov
    Overcast skies
  • Tuesday
    21st Nov
    Clear skies
  • Wednesday
    22nd Nov
    Broken clouds

Last updated at 04:07 on Saturday 18th November 2017 GMT

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All months

Metric (°C / mm)  |  Imperial (°F / inches)

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Illinois weather forecast by day

Below are the detailed weather forecasts for Illinois for the next 5 days. The forecasts shown are for Chicago and may not represent the whole of Illinois. Browse more destinations in Illinois to view more weather forecasts.

Illinois weather for Saturday 18th November 2017

Below is the Illinois weather forecast for Saturday 18th November 2017. Expect isolated thunderstorms in Illinois with a maximum temperature of 10°C and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 99% chance of some rain and a strong breeze of 50 kph from the north.

  • 10
    °C maximum temperature
  • 1
    °C minimum temperature
  • isolated thunderstorms
  • 0
    hours of sunshine
  • 99
    % chance of some rain
  • <30
    mm of rainfall expected
  • 0
    no heat & humidity
  • 50
    kph wind from N

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Illinois weather for Sunday 19th November 2017

Below is the Illinois weather forecast for Sunday 19th November 2017. Expect scattered clouds in Illinois with a maximum temperature of 3°C and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 36 kph from the north-west.

  • 3
    °C maximum temperature
  • -2
    °C minimum temperature
  • scattered clouds
  • 6
    hours of sunshine
  • 0
    mm of rainfall expected
  • -3
    °C wind chill
  • 36
    kph wind from NW

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Illinois weather for Monday 20th November 2017

Below is the Illinois weather forecast for Monday 20th November 2017. Expect overcast skies in Illinois with a maximum temperature of 10°C and no hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 36 kph from the south-west.

  • 10
    °C maximum temperature
  • -1
    °C minimum temperature
  • overcast skies
  • 0
    hours of sunshine
  • 0
    mm of rainfall expected
  • 0
    no heat & humidity
  • 36
    kph wind from SW

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Illinois weather for Tuesday 21st November 2017

Below is the Illinois weather forecast for Tuesday 21st November 2017. Expect clear skies in Illinois with a maximum temperature of 8°C and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the south-west.

  • 8
    °C maximum temperature
  • -1
    °C minimum temperature
  • clear skies
  • 7
    hours of sunshine
  • 0
    mm of rainfall expected
  • 4
    °C wind chill
  • 35
    kph wind from SW

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Illinois weather for Wednesday 22nd November 2017

Below is the Illinois weather forecast for Wednesday 22nd November 2017. Expect broken clouds in Illinois with a maximum temperature of 3°C and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-west.

  • 3
    °C maximum temperature
  • -3
    °C minimum temperature
  • broken clouds
  • 4
    hours of sunshine
  • 0
    mm of rainfall expected
  • -1
    °C wind chill
  • 16
    kph wind from NW

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Illinois weather by month

Check Illinois weather for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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