Point Forecast: Decatur Airport IL
 39.84N 88.88W (Elev. 650 ft)
Last Update: 5:56 pm CDT Jul 15, 2025
Tabular Forecast
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Weather ElementsFire WeatherProbabilistic Forecasts (Experimental)
Description | Survey
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Mixing Height  
Trans. Wind  
20ft Wind  
Vent Rate (x1000 mph-ft)
Quantitative Precipitation     info
    0.100.250.501.00
Snowfall     info
    0.1in1in3in6in12in

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (CDT)202122230001020304050607080910111213141516171819
Temperature (°F)797776757371727271717172757981848687888990888785
Dewpoint (°F)747373737371727271717172737475767676757474747475
Heat Index (°F)79777675757987939698989899979594
Surface Wind (mph)66655533335666788910111111108
Wind DirSSESSESSESSESSSSSSWSSSWSSWSSWSWSWSWSWSWSWSWSWSWSWSW
Gust
Sky Cover (%)414038403744374239515857514521322723242638383851
Precipitation Potential (%)211615131212121312121211111111111123232338383834
Relative Humidity (%)85889094100100100100100100100100948582777270666160636572
RainSChcSChcSChc----------------------------SChcSChcSChcChcChcChcChc
ThunderSChcSChcSChc----------------------------SChcSChcSChcChcChcChcChc

Date07/17
Hour (CDT)202122230001020304050607080910111213141516171819
Temperature (°F)838179787675747374747474757779808081828282817978
Dewpoint (°F)757373727272727172727272727373737373737272727171
Heat Index (°F)908679787675757779848486878787857978
Surface Wind (mph)8877777877778910101010101010998
Wind DirSSWSSWSSWSWSSWSWSWWSWWSWWSWWWWWNWWNWWNWWNWWNWWNWWNWWNWNWNNWN
Gust15151515
Sky Cover (%)405344545147495153565861667176767575726966687173
Precipitation Potential (%)343434343429292929292932323232323251515151515126
Relative Humidity (%)777782828790939393939393908882797977747272747779
RainChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChc
ThunderChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChc

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