Point Forecast: 3 Miles SSE Merna IL
 40.5N 88.84W (Elev. 833 ft)
Last Update: 6:41 am 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)091011121314151617181920212223000102030405060708
Temperature (°F)798181838483848584848379767574737372727272717374
Dewpoint (°F)727374747575757474747473737273737272727272717273
Heat Index (°F)7985869092909293919190797675
Surface Wind (mph)678888898877666555666676
Wind DirSESSESSESSESSSSSSESSESSESSESSSSSSSSSWSSWSSWSWSW
Gust
Sky Cover (%)333543505758585956545247433838373743485456586061
Precipitation Potential (%)83553026252624281414141010108886661010
Relative Humidity (%)797979747477747072727482909097100971001001001001009797
Rain--------ChcChcChcChcSChcChc----------------------------
Thunder--------ChcChcChcChcSChcChc----------------------------

Date07/17
Hour (CDT)091011121314151617181920212223000102030405060708
Temperature (°F)778183848586888887858381797775747372727271717172
Dewpoint (°F)747676767575757575747474747473737272717171717172
Heat Index (°F)778791939495989896939086797775
Surface Wind (mph)6667891010101098777888999999
Wind DirSWSWSWSWSWSWSWSWSWSWSWSWSSWSSWSSWSWSWSWWSWWSWWSWWWW
Gust
Sky Cover (%)572039312326293236394348545961626464636366707373
Precipitation Potential (%)101010103434343434344848484848483737373737372121
Relative Humidity (%)90858077727066666870747985909497971009797100100100100
Rain--------ChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcSChcSChc
Thunder--------SChcSChcSChcChcChcChcChcChcChcChcChcChcChcChcChcSChcSChcSChcSChcSChc

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