National Weather Service

News Headlines

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

82°F

28°C

Humidity	85%
Wind Speed	S 6 mph
Barometer	29.93 in (1013.0 mb)
Dewpoint	77°F (25°C)
Visibility	7.00 mi
Heat Index	90°F (32°C)
Last update	26 Jul 12:54 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

2 Miles NNE Decatur Airport IL

Heat Advisory until July 27, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until July 27, 09:00pm
NOW until 9:00pm Mon
Heat Advisory
This Afternoon
High: 89 °F
Slight Chance
T-storms
Tonight
Low: 75 °F
Partly Cloudy
Monday
High: 92 °F
Mostly Sunny
Monday Night
Low: 74 °F
Mostly Clear
Tuesday
High: 88 °F
Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
Wednesday
High: 84 °F
Sunny
Wednesday Night
Low: 61 °F
Clear

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 89. Heat index values as high as 106. West southwest wind around 7 mph.

Tonight

Partly cloudy, with a low around 75. South wind 3 to 5 mph.

Monday

Mostly sunny, with a high near 92. Heat index values as high as 106. South southwest wind 6 to 14 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 74. South southwest wind 9 to 11 mph becoming west northwest after midnight. Winds could gust as high as 17 mph.

Tuesday

Sunny, with a high near 88. North wind 9 to 13 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly clear, with a low around 64. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

Wednesday

Sunny, with a high near 84. North northeast wind 6 to 10 mph, with gusts as high as 15 mph.