National Weather Service United States Department of Commerce

Severe weather possible for parts of central U.S.

Widespread thunderstorm activity is expected to develop on Thursday along a cold front moving eastward across the plains into the Mississippi Valley. A potential for damaging wind gusts will develop with the stronger thunderstorms. Hail will also be possible in the ArkLaTex and Ozarks.
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Hazardous Weather Conditions

Current Conditions

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Decatur IL

7 Day Forecast

For More Weather Information:

Lincoln, IL Local Forecast Office

Today

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 83 °F

Tonight

Thunderstorms Chance for Measurable Precipitation 100%

Thunderstorms

Low: 58 °F

Friday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 63 °F

Friday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 38 °F

Saturday

Breezy

Breezy

High: 55 °F

Saturday
Night

Partly Cloudy

Partly
Cloudy

Low: 37 °F

Sunday

Partly Sunny

Partly
Sunny

High: 63 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 44 °F

Monday

Chance Showers

Chance
Showers

High: 64 °F

Detailed Forecast

  • Today Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, with a high near 83. South wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
  • Tonight Occasional showers and thunderstorms, mainly before 4am. Low around 58. South wind around 11 mph, with gusts as high as 16 mph. Chance of precipitation is 100%.
  • Friday A slight chance of showers and thunderstorms before 7am, then a slight chance of showers after 1pm. Mostly cloudy, with a high near 63. Breezy, with a west northwest wind 13 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
  • Friday Night Mostly cloudy, with a low around 38. West wind 11 to 18 mph, with gusts as high as 24 mph.
  • Saturday Mostly sunny, with a high near 55. Breezy, with a west wind 14 to 20 mph, with gusts as high as 24 mph.
  • Saturday Night Partly cloudy, with a low around 37.
  • Sunday Partly sunny, with a high near 63.
  • Sunday Night Partly cloudy, with a low around 44.
  • Monday A chance of showers. Partly sunny, with a high near 64.
  • Monday Night Partly cloudy, with a low around 44.
  • Tuesday Mostly sunny, with a high near 69.
  • Tuesday Night Mostly clear, with a low around 49.
  • Wednesday Mostly sunny, with a high near 74.