Point Forecast: 3 Miles SSE Merna IL
 40.5N 88.84W (Elev. 254 m)
Last Update: 5:10 am CDT Jul 15, 2025
Tabular Forecast
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Weather ElementsFire WeatherProbabilistic Forecasts (Experimental)
Description | Survey
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

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

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

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (CDT)050607080910111213141516171819202122230001020304
Temperature (°C)212122232427272829282929292928262424232323222222
Dewpoint (°C)202021222323232324242423232323232322232322222222
Heat Index (°C)2429303233323334333332262424
Surface Wind (mph)333567888889887766655566
Wind DirESEESEESESESESSESSESSESSSSSSESSESSESSESSSSSSSSSW
Gust
Sky Cover (%)212428303335435057585859565452474338383737434854
Precipitation Potential (%)130483553026252624281414141010108886
Relative Humidity (%)9397939290827974747774707272748290909710097100100100
Rain----------------ChcChcChcChcSChcChc--------------------
Thunder----------------ChcChcChcChcSChcChc--------------------

Date07/17
Hour (CDT)050607080910111213141516171819202122230001020304
Temperature (°C)222223232527282929303131312928272625242323222222
Dewpoint (°C)222222232324242424242424242323232323232322222222
Heat Index (°C)253133343435373736343230262524
Surface Wind (mph)6676666789101010109877788899
Wind DirSSWSSWSWSWSWSWSWSWSWSWSWSWSWSWSWSWSSWSSWSSWSWSWSWWSWWSW
Gust
Sky Cover (%)565860615720393123262932363943485459616264646363
Precipitation Potential (%)6610101010101034343434343448484848484837373737
Relative Humidity (%)100100979790858077727066666870747985909497971009797
Rain----------------ChcChcChcChcChcChcChcChcChcChcChcChcChcChcChcChc
Thunder----------------SChcSChcSChcChcChcChcChcChcChcChcChcChcChcChcChcSChc

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