Local Forecast

Decatur, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, active weather alerts for Decatur, IL

No Active Alerts

Hour-by-Hour  Current Observation

Friday 4:05 AM CDTFriday 4:05 AM

°F °C
Regional Observations →
53°F

Cloudy

  • 55° / 37° High / Low
  • 53° Feels Like
  • 0% Chance of Rain

Wind

16 mph

G 27 mph

NW

UV Index

0

None

Humidity

82%

Dew 48°F

Sun

7:09 AM · 6:11 PM

Rise · Set

Source: DECATUR (KDEC). Slider scrubs the next 12 hours.

5-Day Outlook

Through Tuesday

Local Radar →

Friday

55° 37°

Chance of Rain Showers

Overnight: Mostly Cloudy

Detailed forecast

Friday

A chance of rain showers after 3pm. Mostly cloudy, with a high near 55. Northwest wind around 20 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Night

Partly cloudy, with a low around 35. North northwest wind 9 to 17 mph, with gusts as high as 28 mph. New rainfall amounts less than a tenth of an inch possible.

Saturday

59° 37°

Sunny

Overnight: Clear

Detailed forecast

Saturday

Sunny, with a high near 58. North northeast wind 1 to 7 mph.

Night

Areas of frost after 3am. Clear, with a low around 35. Southeast wind around 3 mph.

Sunday

68° 39°

Sunny

Overnight: Mostly Clear

Detailed forecast

Sunday

Widespread frost before 8am. Sunny, with a high near 68. South wind 5 to 8 mph.

Night

Mostly clear, with a low around 38. South wind around 6 mph.

Monday

71° 44°

Partly Sunny

Overnight: Partly Cloudy

Detailed forecast

Monday

Mostly sunny, with a high near 70.

Night

Partly cloudy, with a low around 42.

Tuesday

77° 46°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Tuesday

Mostly sunny, with a high near 75.

Night

Mostly clear, with a low around 45.

Decatur, IL Weather Analysis Tools