Giant City State Park, 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: 8/27/2026, 04:10 Your Time: Giant City State Park, Illinois Hour by Hour Forcast Aeronautical Observation: Automated synoptic observations via NWS Gateway. Auto-refresh in: 5:02 Giant City State Park, IL Regional Weather Expires:202608270500;;424799 ASUS43 KLOT 270410 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 1100 PM CDT WED AUG 26 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>094-270500- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE NOT AVBL CAIRO* MOCLDY 74 74 99 CALM 29.96F TC 24 EFFINGHAM* CLEAR 70 67 89 CALM 29.98R TC 21 MARION CLEAR 76 73 89 SW6 29.97R TC 25 MT. VERNON PTCLDY 74 67 78 NE3 29.96R TC 23 CENTRALIA* PTCLDY 74 67 78 MISG 29.97R TC 24 SALEM* PTCLDY 74 68 81 MISG 29.97R TC 23 METROPOLIS* PTCLDY 72 71 98 CALM 29.97S TC 22 $$ 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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