Little Grassy Lake, 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: 8/16/2026, 12:50 Your Time: Little Grassy Lake, Illinois Hour by Hour Forcast Aeronautical Observation: Automated synoptic observations via NWS Gateway. Auto-refresh in: 5:02 Little Grassy Lake, IL Regional Weather Expires:202608161300;;288499 ASUS43 KLOT 161210 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 700 AM CDT SUN AUG 16 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>094-161300- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE CLEAR 77 72 83 S7 30.05 TC 25 CAIRO* CLEAR 77 74 92 CALM 30.07R TC 25 EFFINGHAM* MOCLDY 76 76 100 W8 30.06R TC 24 MT. VERNON CLEAR 76 73 91 SW3 30.04S TC 24 CENTRALIA* PTCLDY 73 73 97 CALM 30.05R TC 23 SALEM* N/A 77 75 95 MISG 30.04R TC 25 METROPOLIS* CLEAR 78 70 76 S3 30.07R HX 81 TC 26 $$ 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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