Illinois weather forecast

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Below are temperatures expected tomorrow at popular destinations in Illinois. Select a destination to see the 5-day weather forecast.

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

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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 16th January 2021

Below is the Illinois weather forecast for Saturday 16th January 2021. Expect overcast with light snow in Illinois with a maximum temperature of 2°C and no hours of bright sunshine. There are 2-5 cm of snow expected with 81% chance of some snow and a moderate breeze of 21 kph from the west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Overcast with light snow
    overcast with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 81% chance of some snow81
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -3°C wind chill-3
    °C wind chill
  • Moderate breeze of 21 kph from the West21
    kph wind from W

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Illinois weather for Sunday 17th January 2021

Below is the Illinois weather forecast for Sunday 17th January 2021. Expect mostly cloudy with light snow in Illinois with a maximum temperature of -1°C and no hours of bright sunshine. There are 2-5 cm of snow expected with 68% chance of some snow and a gentle breeze of 14 kph from the west.

  • -1°C maximum temperature-1
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 68% chance of some snow68
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Gentle breeze of 14 kph from the West14
    kph wind from W

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Illinois weather for Monday 18th January 2021

Below is the Illinois weather forecast for Monday 18th January 2021. Expect overcast skies in Illinois with a maximum temperature of 0°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 17 kph from the west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -5°C minimum temperature-5
    °C minimum temperature
  • Overcast skies
    overcast skies
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Gentle breeze of 17 kph from the West17
    kph wind from W

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Illinois weather for Tuesday 19th January 2021

Below is the Illinois weather forecast for Tuesday 19th January 2021. Expect broken clouds in Illinois with a maximum temperature of -2°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 21 kph from the west.

  • -2°C maximum temperature-2
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -8°C wind chill-8
    °C wind chill
  • Moderate breeze of 21 kph from the West21
    kph wind from W

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Illinois weather for Wednesday 20th January 2021

Below is the Illinois weather forecast for Wednesday 20th January 2021. Expect clear skies in Illinois with a maximum temperature of 0°C, maximum UV of 1 (Low) and 10 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 26 kph from the south-west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -9°C minimum temperature-9
    °C minimum temperature
  • Clear skies
    clear skies
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Moderate breeze of 26 kph from the South-West26
    kph wind from SW

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

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