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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

78°F

26°C

Humidity	54%
Wind Speed	NE 9 mph
Barometer	30.11 in (1019.0 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	3 Aug 3:54 pm CDT

More Information:

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

Extended Forecast for

Illiopolis IL

Tonight
Low: 60 °F
Mostly Cloudy
Monday
High: 80 °F
Partly Sunny
then Chance
T-storms
Monday Night
Low: 64 °F
Chance
T-storms then
Mostly Cloudy
Tuesday
High: 81 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 66 °F
Mostly Clear
Wednesday
High: 85 °F
Mostly Sunny
Wednesday Night
Low: 67 °F
Mostly Clear
Thursday
High: 87 °F
Sunny
Thursday Night
Low: 68 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly cloudy, with a low around 60. East northeast wind around 6 mph.

Monday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 80. East wind 5 to 8 mph.

Monday Night

A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 64. East southeast wind around 6 mph becoming calm in the evening.

Tuesday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. East southeast wind 3 to 6 mph.

Tuesday Night

Mostly clear, with a low around 66. East wind around 5 mph becoming calm in the evening.

Wednesday

Mostly sunny, with a high near 85. Light southeast wind.

Wednesday Night

Mostly clear, with a low around 67. Light south southeast wind.

Thursday

Sunny, with a high near 87.

Thursday Night

Mostly clear, with a low around 68.