Point Forecast: Decatur Airport IL
 39.84N 88.88W (Elev. 650 ft)
Last Update: 6:41 am CDT Jul 15, 2025
Tabular Forecast
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Date07/1507/16
Hour (CDT)060708091011121314151617181920212223000102030405
Temperature (°F)727477808284838385858585838281787675757575747373
Dewpoint (°F)686970717274747474747474737372727273737272727272
Heat Index (°F)77838791909093939393898785787675757575
Surface Wind (mph)356677777666666555555555
Wind DirEESEESESESSESSESSESSSSESSESSESSESSESSESSESSESSESSSSSSWSSW
Gust
Sky Cover (%)484849515358636868686864595553504847454448535756
Precipitation Potential (%)31510911101032313533333218181812121210101099
Relative Humidity (%)878479747272747470707070727474828794949090939797
Rain--SChc----------ChcChcChcChcChcChcSChcSChcSChc----------------
Thunder--------------ChcChcChcChcChcChcSChcSChcSChc----------------

Date07/17
Hour (CDT)060708091011121314151617181920212223000102030405
Temperature (°F)737477798385878889909089878583828079787777767675
Dewpoint (°F)737374757575757575747474757575747474737373727272
Heat Index (°F)77799094969899999998969490888579787777767675
Surface Wind (mph)566667789998877777777777
Wind DirSSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSSWSSWSSWSSWSSWSSWSWSWSW
Gust
Sky Cover (%)555351452132272224262832353939393945525855514849
Precipitation Potential (%)91111111111112323232323233434343434342929292929
Relative Humidity (%)1009790887772686664606061687277778285858888878790
Rain--------------SChcSChcSChcSChcSChcSChcChcChcChcChcChcChcChcChcChcChcChc
Thunder--------------SChcSChcSChcSChcSChcSChcChcChcChcChcChcChcChcChcChcSChcSChc

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