ASUS43 KLOT 181513 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 1000 AM CDT MON MAY 18 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. ILZ001-002-007-009-015-016-024-181600- NORTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS MOLINE CLOUDY 67 63 87 SE14 29.75R TC 19 STERLING* MOSUNNY 66 65 96 SE10 29.78F TC 19 SAVANNA* PTSUNNY 68 62 81 SE9 29.76R TC 20 $$ ILZ003-004-008-010-011-017-018-181600- NORTH CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ROCKFORD LGT RAIN 70 66 87 SE9 29.82F TC 21 FREEPORT* CLOUDY 68 67 95 SE15 29.77F TC 20 ROCHELLE* RAIN 70 63 79 SW10 29.85S TC 21 DE KALB* CLOUDY 72 67 83 SW15 29.86S TC 22 PERU* RAIN 68 64 88 SE3 29.87R TC 20 $$ ILZ005-006-012>014-019>023-181600- NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE CLOUDY 76 65 68 S13G28 29.84S TC 24 CHICAGO-MIDWAY CLOUDY 78 66 66 SW16 29.85S HX 80 TC 26 AURORA PTSUNNY 73 67 81 S7 29.83F THUNDER TC 23 JOLIET* CLOUDY 78 68 69 SW8 29.85F HX 80 TC 26 WAUKEGAN CLOUDY 76 66 71 SW20G31 29.82S TC 24 DUPAGE AIRPORT PTSUNNY 75 66 73 S12 29.84S TC 24 KANKAKEE* CLOUDY 80 66 62 SW26G33 29.89S HX 82 TC 27 WHEELING CLOUDY 76 65 68 SW16G26 29.85S TC 24 MORRIS* CLOUDY 75 66 73 SW7 29.83F TC 24 ROMEOVILLE* CLOUDY 79 68 69 S17G25 29.87S HX 81 TC 26 LANSING* CLOUDY 80 66 62 S22G28 29.88S HX 82 TC 27 NORTHERLY ISL* N/A 76 64 66 SW10 N/A TC 24 $$ LMZ740>746-181600- SOUTHERN LAKE MICHIGAN STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE AIR SEA DIR/SP/G HT/PER (F) (DEG/KT/KT) (MB) (MI) (FT/S) WINTHROP HARBOR 49 1019.3 2/ 4 WAUKEGAN HARBOR 65 51 200/ 10/ 16 1010.9 2/ 4 WILMETTE BUOY 67 210/ 12/ 16 1012.4 1/ 3 CHICAGO BUOY 69 54 230/ 12/ 21 1010.0 2/ 3 HARRISON CRIB 77 210/ 20/ 24 N/A NORTHERLY ISL 78 190/ 10/ 20 N/A CALUMET HARBOR 78 190/ 10/ 19 1011.3 BURNS HARBOR 78 200/ 12/ 14 1012.2S MICHIGAN CITY 79 180/ 17/ 22 1010.3F ST. JOSEPH BUOY 65 190/ 12/ 14 1013.0S 2/ 4 $$ ILZ025>027-034>036-040-047-049-050-058-095>099-181600- WEST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS QUINCY LGT RAIN 64 63 96 SE13 29.91 TC 18 GALESBURG* CLOUDY 64 63 94 SE14G22 29.78F TC 18 MACOMB* CLOUDY 65 64 97 SE22 29.80F TC 18 JACKSONVILLE* PTSUNNY 64 64 100 N3 29.94S TC 18 PITTSFIELD* CLOUDY 64 64 98 CALM 29.96R TC 18 $$ ILZ028>032-037-038-041>044-048-051>054-059>061-181600- CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS PONTIAC LGT RAIN 74 68 81 MISG 29.92R TC 23 BLOOMINGTON CLOUDY 66 66 100 NW18G26 29.95R TC 19 DECATUR PTSUNNY75 68 78 S24G30 29.97R TC 24 PEORIA NOT AVBL LACON* LGT RAIN 66 63 89 S3 29.88F TC 19 LINCOLN* TSTM 66 66 100 NW6G16 29.94F TC 19 SPRINGFIELD RAIN 65 63 93 NW7 29.94S TC 18 TAYLORVILLE CLOUDY 64 64 100 N13G25 29.96R THUNDER TC 18 $$ ILZ033-039-045-046-055>057-062-063-181600- EAST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHAMPAIGN PTSUNNY 75 68 78 S25G37 29.92F TC 24 DANVILLE* CLOUDY 80 67 65 S18G32 29.94F HX 82 TC 27 RANTOUL* PTSUNNY 76 67 72 S21G29 29.91F TC 24 MATTOON TSTM 72 69 90 S9G21 29.94F FOG TC 22 PARIS* PTSUNNY 79 66 64 S25 29.96F HX 81 TC 26 $$ ILZ079-100>102-181600- SOUTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ALTON TSTM 66 64 94 N10 29.98R TC 19 BELLEVILLE PTSUNNY 78 74 85 SW10 29.92R HX 81 TC 26 CAHOKIA* TSTM 71 64 78 N18G32 29.95R TC 22 $$ ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181600- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE LGT RAIN 77 71 82 SW13G22 29.99S TC 25 CAIRO* PTSUNNY 83 70 65 SW12G21 30.02S HX 86 TC 28 EFFINGHAM* PTSUNNY 78 72 81 S13G18 29.97F HX 80 TC 25 MARION PTSUNNY 79 70 73 S14G23 30.00R HX 81 TC 26 MT. VERNON CLOUDY 78 69 73 SW13G23 29.99R THUNDER HX 80 CENTRALIA* TSTM 72 66 83 CALM 29.98R TC 22 SALEM* TSTM 78 71 80 SW13G21 29.98R HX 80 TC 26 METROPOLIS* PTSUNNY 82 69 65 S10G17 30.03S HX 85 TC 28 $$ ILZ067-068-072-073-078-083-087-091-181600- SOUTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS LAWRENCEVILLE MOSUNNY 82 69 64 S17G29 29.99F HX 85 TC 28 FLORA* PTSUNNY 79 70 73 S20 29.97F HX 81 TC 26 FAIRFIELD* PTSUNNY 81 67 63 S18G25 29.99S HX 83 TC 27 HARRISBURG* PTSUNNY 81 70 68 SW14G25 30.01F HX 85 TC 27 ROBINSON* MOSUNNY 82 70 65 S18 29.97F HX 86 TC 28 $$ ABBREVIATIONS USED IN REMARKS TC - TEMPERATURE IN CELSIUS WCI - WIND CHILL INDEX HX - HEAT INDEX VSB - VISIBILITY $$