Mermet Lake State Conservation Area, IL Weather Maps °F °C°F °C Illinois Map Options Temperatures Weather Dew Point Wind Speeds Barometric Pressure Heat Index Wind Chill Temperatures Weather Dew Point Wind Speeds Barometric Pressure Heat Index Wind Chill Humidity UTC Time: 8/15/2026, 20:56 Your Time: Mermet Lake State Conservation Area, Illinois Hour by Hour Forcast Aeronautical Observation: Automated synoptic observations via NWS Gateway. Auto-refresh in: 5:02 Mermet Lake State Conservation Area, IL Regional Weather Expires:202608152100;;250812 ASUS43 KLOT 152012 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 300 PM CDT SAT AUG 15 2026 NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY. * THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT REPORT WEATHER SUCH AS PRECIPITATION OR FOG. ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-152100- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE MOSUNNY 93 75 55 S8 30.08F HX 104 TC 34 CAIRO* SUNNY 95 74 51 CALM 30.09F HX 105 TC 35 EFFINGHAM* PTSUNNY 85 78 82 SE8 30.09F HX 96 TC 29 MT. VERNON MOSUNNY 95 76 53 SE6 30.08F HX 108 TC 35 SALEM* N/A 86 77 73 MISG 30.09S HX 97 TC 30 METROPOLIS* SUNNY 95 72 47 W5 30.09F HX 103 TC 35 $$ SKY/WX - Weather TMP - Temperature DP - Dew Point RH - HumidityWIND - Wind Direction/Speed PRES - Barometric Pressure VSB - VisibilityWCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph Illinois Weather Map Illinois Wind Speeds Map Illinois Humidity Map Illinois Barometric Pressure Map
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