Point Forecast: 3 Miles SSE Merna IL
 40.5N 88.84W (Elev. 833 ft)
Last Update: 7:40 pm CDT Jul 14, 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  

Date07/1407/15
Hour (CDT)202122230001020304050607080910111213141516171819
Temperature (°F)797674737372717170706971747680828284848485848482
Dewpoint (°F)717170696969696968686870727374747475757574747474
Heat Index (°F)79767685888892929293919188
Surface Wind (mph)222223333355667778878777
Wind DirSSESESESESEESESESESEESEESESESESSESSESSESSESSESSESSESSSESSESSE
Gust
Sky Cover (%)232424252823201314162620282331485667685455504539
Precipitation Potential (%)000000000000125131528242726262315
Relative Humidity (%)778587888790939393939797939082777774747470727277
Rain--------------------------------SChcChcSChcChcChcChcSChcSChc
Thunder--------------------------------SChcChcSChcChcChcChcSChcSChc

Date07/16
Hour (CDT)202122230001020304050607080910111213141516171819
Temperature (°F)787574747372727272727172747780828485868787868583
Dewpoint (°F)737372737372727272727172737475757575757575757575
Heat Index (°F)78757785899294959696959490
Surface Wind (mph)66665556666667788910111111109
Wind DirSSESSESSESSESSSSSSSWSSWSSWSSWSWSWSWSWSWSWSWSWSWWSWWSW
Gust151515
Sky Cover (%)402819263340455055586164554738353128252320314253
Precipitation Potential (%)151515151515151515151510101010101023232323232345
Relative Humidity (%)85949397100100100100100100100100979085797472706868707277
RainSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChc------------SChcSChcSChcSChcSChcSChcChc
ThunderSChcSChcSChcSChcSChcSChcSChcSChcSChcSChcSChc------------SChcSChcSChcSChcSChcSChcChc

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