Decatur weather live forecast

Tomorrow's maximum temperature in Decatur is expected to be 0°C.

  • Sunday
    9th Feb
    Broken clouds
  • Monday
    10th Feb
    Broken clouds
  • Tuesday
    11th Feb
    Broken clouds
  • Wednesday
    12th Feb
    Mostly cloudy with snow (10-20 cm of snow expected)
  • Thursday
    13th Feb
    Clear skies with flurries of snow (0-2 cm of snow expected)

5-day weather forecast updated at 04:01 on Sunday 9th February 2025 GMT

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

Decatur weather forecast by day

Below are the detailed weather forecasts for Decatur for the next 5 days.

Decatur weather for Sunday 9th February 2025

Expect broken clouds in Decatur, Illinois with a maximum temperature of 0°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 10 kph from the north-west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -5°C minimum temperature-5
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 cm of snow expected0
    cm of snow expected
  • -3°C wind chill-3
    °C wind chill
  • Light breeze of 10 kph from the North-West10
    kph wind from NW

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Decatur weather for Monday 10th February 2025

Expect broken clouds in Decatur, Illinois with a maximum temperature of 2°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the east.

  • 2°C maximum temperature2
    °C maximum temperature
  • -6°C minimum temperature-6
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 2°C wind chill2
    °C wind chill
  • Little or no wind of 3 kph from the East3
    kph wind from E

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Decatur weather for Tuesday 11th February 2025

Expect broken clouds in Decatur, Illinois with a maximum temperature of 1°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.

  • 1°C maximum temperature1
    °C maximum temperature
  • -4°C minimum temperature-4
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -3°C wind chill-3
    °C wind chill
  • Light breeze of 11 kph from the North-East11
    kph wind from NE

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Decatur weather for Wednesday 12th February 2025

Expect mostly cloudy with snow in Decatur, Illinois with a maximum temperature of -2°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 cm of snow expected with 94% chance of some snow and a gentle breeze of 14 kph from the north-east.

  • -2°C maximum temperature-2
    °C maximum temperature
  • -5°C minimum temperature-5
    °C minimum temperature
  • Mostly cloudy with snow
    mostly cloudy with 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
  • 10-20 cm of snow expected<20
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Gentle breeze of 14 kph from the North-East14
    kph wind from NE

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Decatur weather for Thursday 13th February 2025

Expect clear skies with flurries of snow in Decatur, Illinois with a maximum temperature of -5°C, maximum UV of 3 (Moderate) and 6 hours of bright sunshine. There are 0-2 cm of snow expected with 29% chance of some snow and a light breeze of 12 kph from the north-west.

  • -5°C maximum temperature-5
    °C maximum temperature
  • -14°C minimum temperature-14
    °C minimum temperature
  • Clear skies with flurries of snow
    clear skies with flurries of snow
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 29% chance of some snow29
    % 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 12 kph from the North-West12
    kph wind from NW

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

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