Illinois weather live forecast

Today's maximum temperature in Illinois is expected to be 0°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 29th November 2025 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 29th November 2025

Expect cloudy with some snow in Illinois with a maximum temperature of 0°C and no hours of bright sunshine. There are 10-20 cm of snow expected with 99% chance of some snow and a gentle breeze of 19 kph from the south-east.

  • 0°C maximum temperature0
    °C maximum temperature
  • -1°C minimum temperature-1
    °C minimum temperature
  • Cloudy with some snow
    cloudy with some snow
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 99% chance of some snow99
    % chance of some snow
  • 10-20 cm of snow expected<20
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Gentle breeze of 19 kph from the South-East19
    kph wind from SE

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Illinois weather for Sunday 30th November 2025

Expect mostly cloudy with light snow in Illinois with a maximum temperature of 0°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 2-5 cm of snow expected with 22% chance of some snow and a gentle breeze of 19 kph from the north-west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -7°C minimum temperature-7
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 22% chance of some snow22
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Gentle breeze of 19 kph from the North-West19
    kph wind from NW

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Illinois weather for Monday 1st December 2025

Expect mostly cloudy with light snow in Illinois with a maximum temperature of -6°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 cm of snow expected with 94% chance of some snow and little or no wind of 6 kph from the south-west.

  • -6°C maximum temperature-6
    °C maximum temperature
  • -9°C minimum temperature-9
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 94% chance of some snow94
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -8°C wind chill-8
    °C wind chill
  • Little or no wind of 6 kph from the South-West6
    kph wind from SW

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Illinois weather for Tuesday 2nd December 2025

Expect mostly cloudy with light snow in Illinois with a maximum temperature of -5°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 7% chance of some snow and a light breeze of 11 kph from the west.

  • -5°C maximum temperature-5
    °C maximum temperature
  • -9°C minimum temperature-9
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 7% chance of some snow7
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -10°C wind chill-10
    °C wind chill
  • Light breeze of 11 kph from the West11
    kph wind from W

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Illinois weather for Wednesday 3rd December 2025

Expect overcast skies in Illinois with a maximum temperature of -1°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 15 kph from the south-west.

  • -1°C maximum temperature-1
    °C maximum temperature
  • -7°C minimum temperature-7
    °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 15 kph from the South-West15
    kph wind from SW

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  • Sign up to myTUI. Discount varies by spend. T&Cs apply
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Metric (°C / mm)  |  Imperial (°F / inches)

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