National Weather Service United States Department of Commerce

Relatively quiet weather pattern over much of the U.S.

A quieter weather pattern will continue to set up for most of the U.S. as arctic air continues to surge southward behind a cold front sweeping across the Southeast U.S. Expect temperatures to be 10 to 30 degrees below climate averages from the southern Plains to the Northeast on Friday.
Read More...

Hazardous Weather Conditions

Current Conditions

En Español

Share |

Decatur IL

7 Day Forecast

For More Weather Information:

Lincoln, IL Local Forecast Office

Overnight

Mostly Clear

Mostly
Clear

Low: 0 °F

Friday

Mostly Sunny

Mostly
Sunny

High: 29 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 43 °F

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 43 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Monday

Mostly Sunny

Mostly
Sunny

High: 45 °F

Monday
Night

Mostly Clear

Mostly
Clear

Low: 29 °F

Detailed Forecast

  • Overnight Mostly clear, with a low around 0. Wind chill values between -5 and -10. South wind around 6 mph.
  • Friday Mostly sunny, with a high near 29. Wind chill values between -2 and -12. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 23 mph.
  • Friday Night Partly cloudy, with a low around 26. South southwest wind 10 to 14 mph, with gusts as high as 18 mph.
  • Saturday Mostly sunny, with a high near 43. Southwest wind 11 to 13 mph, with gusts as high as 16 mph.
  • Saturday Night Partly cloudy, with a low around 26. West wind 5 to 11 mph, with gusts as high as 15 mph.
  • Sunday Mostly sunny, with a high near 43.
  • Sunday Night Partly cloudy, with a low around 26.
  • Monday Mostly sunny, with a high near 45.
  • Monday Night Mostly clear, with a low around 29.
  • Tuesday Sunny, with a high near 52.
  • Tuesday Night Mostly clear, with a low around 33.
  • Wednesday Sunny, with a high near 58.
  • Wednesday Night Mostly clear, with a low around 39.
  • Thursday Mostly sunny, with a high near 61.