Decatur weather live forecast

Tomorrow's maximum temperature in Decatur is expected to be -9°C.

5-day weather forecast updated at 04:01 on Wednesday 19th February 2025 GMT

More about Decatur

Decatur by month

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

Recommended for Illinois

TUI discount code: up to £300 off 2025/2026 holidays

  • Save up to £300 on package holidays in 2025/2026
  • Book in TUI sale. Discount varies by spend. T&Cs apply
  • Travel between 1st May 2025 & 31st Oct 2026 (inclusive)
Show discount codeShow discount code ******ALE
Redeem TUI discount code >>

Expires at 10:00 on Friday 28th Feb 2025 · View all TUI offers

TUITUI deal finder

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 Wednesday 19th February 2025

Expect broken clouds in Decatur, Illinois with a maximum temperature of -9°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 cm of snow expected and a light breeze of 11 kph from the north-west.

  • -9°C maximum temperature-9
    °C maximum temperature
  • -14°C minimum temperature-14
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 cm of snow expected0
    cm of snow expected
  • -15°C wind chill-15
    °C wind chill
  • Light breeze of 11 kph from the North-West11
    kph wind from NW

Back to top

Decatur weather for Thursday 20th February 2025

Expect broken clouds in Decatur, Illinois with a maximum temperature of -8°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 11 kph from the north-west.

  • -8°C maximum temperature-8
    °C maximum temperature
  • -16°C minimum temperature-16
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 cm of snow expected0
    cm of snow expected
  • -14°C wind chill-14
    °C wind chill
  • Light breeze of 11 kph from the North-West11
    kph wind from NW

Back to top

Decatur weather for Friday 21st February 2025

Expect clear skies in Decatur, Illinois with a maximum temperature of -4°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 cm of snow expected and little or no wind of 5 kph from the south.

  • -4°C maximum temperature-4
    °C maximum temperature
  • -14°C minimum temperature-14
    °C minimum temperature
  • Clear skies
    clear skies
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 cm of snow expected0
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Little or no wind of 5 kph from the South5
    kph wind from S

Back to top

Decatur weather for Saturday 22nd February 2025

Expect scattered clouds in Decatur, Illinois with a maximum temperature of 0°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 10 kph from the south-west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -10°C minimum temperature-10
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 cm of snow expected0
    cm of snow expected
  • -4°C wind chill-4
    °C wind chill
  • Light breeze of 10 kph from the South-West10
    kph wind from SW

Back to top

Decatur weather for Sunday 23rd February 2025

Expect broken clouds in Decatur, Illinois with a maximum temperature of 7°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-west.

  • 7°C maximum temperature7
    °C maximum temperature
  • -5°C minimum temperature-5
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 5°C wind chill5
    °C wind chill
  • Light breeze of 9 kph from the South-West9
    kph wind from SW

Back to top

TUI discount code: up to £300 off 2025/2026 holidays

  • Save up to £300 on package holidays in 2025/2026
  • Book in TUI sale. Discount varies by spend. T&Cs apply
  • Travel between 1st May 2025 & 31st Oct 2026 (inclusive)
Show discount codeShow discount code ******ALE
Redeem TUI discount code >>

Expires at 10:00 on Friday 28th Feb 2025 · View all TUI offers

TUITUI deal finder

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

Back to top

More about the USA

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^