Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be 11°C. Select a day from the live weather forecast for Illinois (Chicago), USA for more weather parameters.

5-day weather forecast updated at 04:00 on Saturday 11th April 2026 GMT

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The 5-day weather forecast for Illinois (Chicago) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

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Below are temperatures expected today at popular countries, regions and places in Illinois. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

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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 11th April 2026

Expect sunshine and showers in Illinois with a maximum temperature of 11°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a light breeze of 7 kph from the east.

  • 11°C maximum temperature11
    °C maximum temperature
  • 4°C minimum temperature4
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 7 kph from the East7
    kph wind from E

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Illinois weather for Sunday 12th April 2026

Expect mostly cloudy with light rain in Illinois with a maximum temperature of 24°C, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a gentle breeze of 15 kph from the south-west.

  • 24°C maximum temperature24
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 70% chance of some rain70
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 15 kph from the South-West15
    kph wind from SW

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Illinois weather for Monday 13th April 2026

Expect broken clouds in Illinois with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south-west.

  • 24°C maximum temperature24
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 15 kph from the South-West15
    kph wind from SW

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Illinois weather for Tuesday 14th April 2026

Expect isolated thunderstorms in Illinois with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 81% chance of some rain and a light breeze of 12 kph from the south-west.

  • 27°C maximum temperature27
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 81% chance of some rain81
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 12 kph from the South-West12
    kph wind from SW

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Illinois weather for Wednesday 15th April 2026

Expect isolated thunderstorms in Illinois with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 58% chance of some rain and a gentle breeze of 13 kph from the south-west.

  • 27°C maximum temperature27
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 58% chance of some rain58
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 13 kph from the South-West13
    kph wind from SW

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