Point Forecast: 3 Miles SSE Merna IL
 40.5N 88.84W (Elev. 833 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)181920212223000102030405060708091011121314151617
Temperature (°F)848381787675737272727171717274788183858787888987
Dewpoint (°F)737473737373727272727171717273747676767675757575
Heat Index (°F)909086787675788791949896989996
Surface Wind (mph)78767666666666677781011111113
Wind DirSSSSSSSSSSSSSWSSWSSWSWSWSSWSWSWSWSWSWSWSW
Gust15
Sky Cover (%)505237453018213137344250535461572039313030305050
Precipitation Potential (%)221817161412111010101010101010101010103030305050
Relative Humidity (%)7074778590949710010010010010010010097888580757068666468
RainSChcSChcSChcSChc------------------------------ChcChcChcChcChc
ThunderSChcSChcSChcSChc------------------------------ChcChcChcChcChc

Date07/17
Hour (CDT)181920212223000102030405060708091011121314151617
Temperature (°F)878481797776747373737272727273747576767777787877
Dewpoint (°F)747474737272727271717170707072727272717171707069
Heat Index (°F)9591867977767576767777787877
Surface Wind (mph)1111109998888899910101111111111111111
Wind DirSWSWSWSSWSWSWSWSWSWWSWWWWWNWWNWWNWWNWWNWNWNWNWNNWNNWNNW
Gust1515151515151616161615
Sky Cover (%)506565535856606365666871747775747274757775747270
Precipitation Potential (%)505252525252524343434343433232323232323939393939
Relative Humidity (%)657279828587939793939793939397939087858282767676
RainChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChc
ThunderChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChc

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