Illinois weather forecast

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

More destinations >>

  • Top deals & discounts
  • Illinois weather overview
  • Illinois climate averages by month
  • More destinations
  • Best time to go to Illinois
  • Illinois weather today - current conditions (last 24-hours)

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

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

  • Discover top Air Canada offers on flights to the USA
  • Browse the lowest fares available or search by date
  • Book flights to New York, Orlando, LA, Boston & more

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 14th December 2019

Below is the Illinois weather forecast for Saturday 14th December 2019. Expect overcast skies in Illinois with a maximum temperature of 2°C and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -4°C minimum temperature-4
    °C minimum temperature
  • Overcast skies
    overcast skies
  • 1 hour of bright sunshine1
    hour of sunshine
  • No UV (maximum) index0
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 0°C wind chill0
    °C wind chill
  • Light breeze of 10 kph from the South-West10
    kph wind from SW

Back to top

Illinois weather for Sunday 15th December 2019

Below is the Illinois weather forecast for Sunday 15th December 2019. Expect scattered clouds in Illinois with a maximum temperature of -2°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 8 kph from the west.

  • -2°C maximum temperature-2
    °C maximum temperature
  • -7°C minimum temperature-7
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    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
  • Light breeze of 8 kph from the West8
    kph wind from W

Back to top

Illinois weather for Monday 16th December 2019

Below is the Illinois weather forecast for Monday 16th December 2019. Expect mostly cloudy with snow in Illinois with a maximum temperature of -1°C and no hours of bright sunshine. There are 5-10 cm of snow expected with 62% chance of some snow and a gentle breeze of 16 kph from the north-west.

  • -1°C maximum temperature-1
    °C maximum temperature
  • -3°C minimum temperature-3
    °C minimum temperature
  • Mostly cloudy with snow
    mostly cloudy with snow
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
  • 62% chance of some snow62
    % chance of some snow
  • 5-10 cm of snow expected<10
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Gentle breeze of 16 kph from the North-West16
    kph wind from NW

Back to top

Illinois weather for Tuesday 17th December 2019

Below is the Illinois weather forecast for Tuesday 17th December 2019. Expect broken clouds in Illinois with a maximum temperature of -3°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 18 kph from the north-west.

  • -3°C maximum temperature-3
    °C maximum temperature
  • -9°C minimum temperature-9
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -9°C wind chill-9
    °C wind chill
  • Gentle breeze of 18 kph from the North-West18
    kph wind from NW

Back to top

Illinois weather for Wednesday 18th December 2019

Below is the Illinois weather forecast for Wednesday 18th December 2019. Expect scattered clouds in Illinois with a maximum temperature of -8°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 18 kph from the west.

  • -8°C maximum temperature-8
    °C maximum temperature
  • -13°C minimum temperature-13
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -14°C wind chill-14
    °C wind chill
  • Gentle breeze of 18 kph from the West18
    kph wind from W

Back to top

  • Save on luxury holidays with premium & business class flights
  • Combine hotel+flights for Asia, USA, Caribbean & more
  • Including Barbados, Cancun, Phuket, Mauritius & LA

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

Back to top

Discover more about the USA

More Illinois destinations

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.