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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fog/Mist

41°F

5°C

Humidity	96%
Wind Speed	E 6 mph
Barometer	29.92 in (1012.9 mb)
Dewpoint	40°F (4°C)
Visibility	5.00 mi
Wind Chill	37°F (3°C)
Last update	21 Mar 4:54 am CDT

More Information:

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

Extended Forecast for

Illiopolis IL

Today
High: 85 °F
Sunny
Tonight
Low: 60 °F
Mostly Clear
Sunday
High: 80 °F
Mostly Sunny
then Mostly
Cloudy and
Breezy
Sunday Night
Low: 34 °F
Mostly Cloudy
and Breezy
then Partly
Cloudy
Monday
High: 53 °F
Mostly Sunny
Monday Night
Low: 36 °F
Mostly Cloudy
Tuesday
High: 60 °F
Partly Sunny
Tuesday Night
Low: 42 °F
Mostly Cloudy
Wednesday
High: 66 °F
Mostly Cloudy

Detailed Forecast

Today

Sunny, with a high near 85. East southeast wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

Tonight

Mostly clear, with a low around 60. South southwest wind 8 to 11 mph, with gusts as high as 23 mph.

Sunday

Partly sunny, with a high near 80. Breezy, with a south southwest wind 11 to 16 mph becoming north 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.

Sunday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around 34. Breezy, with a north wind 14 to 22 mph, with gusts as high as 31 mph.

Monday

Mostly sunny, with a high near 53. North northeast wind 9 to 11 mph, with gusts as high as 18 mph.

Monday Night

Mostly cloudy, with a low around 36. East wind around 8 mph.

Tuesday

Partly sunny, with a high near 60. South wind 8 to 10 mph, with gusts as high as 16 mph.

Tuesday Night

Mostly cloudy, with a low around 42.

Wednesday

Mostly cloudy, with a high near 66.