ASUS43 KLOT 181710 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 1200 PM 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. ILZ001-002-007-009-015-016-024-181800- NORTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS MOLINE CLOUDY 74 63 68 SW15 29.81R TC 23 STERLING* CLOUDY 76 65 68 VRB6 29.81R TC 24 SAVANNA* PTSUNNY 74 64 72 SW8 29.82R TC 23 $$ ILZ003-004-008-010-011-017-018-181800- NORTH CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ROCKFORD CLOUDY 74 66 76 S8 29.82R TC 23 FREEPORT* PTSUNNY 74 68 79 S8G17 29.83S TC 24 ROCHELLE* CLOUDY 74 63 69 S12 29.82R TC 23 DE KALB* CLOUDY 71 66 83 S8 29.82R TC 22 PERU* CLOUDY 73 66 78 S14 29.81R TC 23 $$ ILZ005-006-012>014-019>023-181800- NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE CLOUDY 70 68 93 SE8 29.79F TC 21 CHICAGO-MIDWAY CLOUDY 69 67 93 SE9 29.81F TC 21 AURORA CLOUDY 69 66 90 CALM 29.82R TC 21 JOLIET* PTSUNNY 70 69 96 SE7 29.81F TC 21 WAUKEGAN RAIN 70 68 93 S10 29.77F FOG TC 21 DUPAGE AIRPORT PTSUNNY 70 68 93 CALM 29.80R TC 21 KANKAKEE* LGT RAIN 67 65 94 S12 29.87F TC 20 WHEELING MOSUNNY 68 66 93 VRB3 29.80F TC 20 MORRIS* CLOUDY 70 66 88 SE14 29.79F TC 21 ROMEOVILLE* PTSUNNY 70 70 100 SE14 29.81F TC 21 LANSING* RAIN 66 65 96 S6 29.86F TC 19 NORTHERLY ISL* N/A 65 63 93 SE5 N/A TC 18 $$ LMZ740>746-181800- SOUTHERN LAKE MICHIGAN STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE AIR SEA DIR/SP/G HT/PER (F) (DEG/KT/KT) (MB) (MI) (FT/S) WINTHROP HARBOR 49 1013.8 2/ 4 WAUKEGAN HARBOR 60 51 140/ 14/ 17 1008.9 2/ 4 WILMETTE BUOY 63 220/ 4/ 10 1011.4F 1/ 3 CHICAGO BUOY 60 54 1009.2 1/ 5 HARRISON CRIB 66 180/ 9/ 11 N/A NORTHERLY ISL 66 290/ 10/ 16 N/A CALUMET HARBOR 68 230/ 5/ 10 1011.3 BURNS HARBOR 65 230/ 9/ 29 1013.2R MICHIGAN CITY 81 180/ 19/ 22 1009.6F ST. JOSEPH BUOY 67 190/ 12/ 16 1012.2F 2/ 3 $$ ILZ025>027-034>036-040-047-049-050-058-095>099-181800- WEST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS QUINCY LGT RAIN 65 63 93 S22G35 29.86F TC 18 GALESBURG* CLOUDY 71 63 76 SW13 29.83R TC 22 MACOMB* CLOUDY 71 64 79 S24G31 29.81R TC 22 JACKSONVILLE* CLOUDY N/A N/A N/A S12 29.98R PITTSFIELD* CLOUDY 65 65 98 SE7 29.97S TC 19 $$ ILZ028>032-037-038-041>044-048-051>054-059>061-181800- CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS PONTIAC CLOUDY 67 67 100 MISG 29.86R TC 19 BLOOMINGTON CLOUDY 67 67 100 S23G30 29.90F TC 19 DECATUR CLOUDY67 66 97 SE5 29.98R TC 19 PEORIA NOT AVBL LACON* CLOUDY 71 64 77 SW5 29.81R TC 22 LINCOLN* LGT RAIN 68 68 100 S14 29.92F TC 20 SPRINGFIELD LGT RAIN 67 65 93 S12 29.96R TC 19 TAYLORVILLE CLOUDY 66 64 94 SE5 30.00R TC 19 $$ ILZ033-039-045-046-055>057-062-063-181800- EAST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHAMPAIGN LGT RAIN 67 65 93 S3 29.97F TC 19 DANVILLE* CLOUDY 68 66 93 SW7 30.00R TC 20 RANTOUL* LGT RAIN 66 65 95 NW5 29.93F TC 19 MATTOON RAIN 67 65 93 N7 30.00 FOG TC 19 PARIS* TSTM 68 67 98 SW15G33 30.02R TC 20 $$ ILZ079-100>102-181800- SOUTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ALTON TSTM 66 64 94 E3 29.98S TC 19 BELLEVILLE TSTM 68 67 97 CALM 29.98R VSB 3/4 TC 20 CAHOKIA* TSTM 67 65 93 N6 29.98F FOG TC 19 $$ ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181800- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE MOSUNNY 79 73 83 SW12 30.00R HX 82 TC 26 CAIRO* CLOUDY 85 69 58 SW14G21 30.03R HX 89 TC 30 EFFINGHAM* HVY RAIN 67 67 100 CALM 30.02F VSB 1/2 TC 19 MARION CLOUDY 81 72 74 SW12 30.01R HX 84 TC 27 MT. VERNON PTSUNNY 80 72 76 S16 29.99S HX 84 TC 27 CENTRALIA* CLOUDY 74 73 96 CALM 30.00R TC 23 SALEM* CLOUDY 69 69 100 N13 30.02R TC 21 METROPOLIS* PTSUNNY 86 70 59 S9G17 30.04S HX 90 TC 30 $$ ILZ067-068-072-073-078-083-087-091-181800- SOUTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS FLORA* CLOUDY 70 68 94 NW8 30.01R TC 21 FAIRFIELD* TSTM 78 68 72 S16G23 30.00R HX 80 TC 25 HARRISBURG* PTSUNNY 83 71 66 S13G20 30.01F HX 87 TC 28 ROBINSON* RAIN 75 72 88 W12 29.99R FOG TC 24 $$ ABBREVIATIONS USED IN REMARKS TC - TEMPERATURE IN CELSIUS WCI - WIND CHILL INDEX HX - HEAT INDEX VSB - VISIBILITY $$