ASUS43 KLOT 181901 RWRIL ILLINOIS REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 200 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. ILZ001-002-007-009-015-016-024-182000- NORTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS MOLINE CLOUDY 75 63 66 SW14G31 29.83R TC 24 STERLING* CLOUDY 78 64 61 SW22G32 29.83R HX 80 TC 26 SAVANNA* CLOUDY 77 64 63 SW13 29.83R TC 25 $$ ILZ003-004-008-010-011-017-018-182000- NORTH CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ROCKFORD CLOUDY 80 62 54 SW17G30 29.83R HX 81 TC 27 FREEPORT* CLOUDY 77 65 67 SW15G24 29.84R TC 25 DE KALB* PTSUNNY 77 64 62 SW22G29 29.87R TC 25 PERU* CLOUDY 75 64 69 SW15G21 29.86R TC 24 $$ ILZ005-006-012>014-019>023-182000- NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE PTSUNNY 78 66 66 S13 29.83R HX 80 TC 26 CHICAGO-MIDWAY PTSUNNY 78 66 66 SW16 29.85R HX 80 TC 26 AURORA PTSUNNY 77 67 71 S15 29.85R TC 25 JOLIET* CLOUDY 77 67 71 S10 29.88R TC 25 WAUKEGAN PTSUNNY 78 68 71 S16 29.81R HX 80 TC 26 DUPAGE AIRPORT PTSUNNY 76 66 71 S12 29.84R TC 24 KANKAKEE* CLOUDY 72 65 77 S7 29.91R TC 22 WHEELING PTSUNNY 78 67 68 SW13G22 29.84R HX 80 TC 26 MORRIS* CLOUDY 73 64 73 S15 29.86R TC 23 ROMEOVILLE* MOSUNNY 77 66 69 SW17 29.87R TC 25 LANSING* PTSUNNY 74 66 75 S14 29.88R TC 23 NORTHERLY ISL* N/A 70 68 93 S12 N/A TC 21 $$ LMZ740>746-182000- SOUTHERN LAKE MICHIGAN STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE AIR SEA DIR/SP/G HT/PER (F) (DEG/KT/KT) (MB) (MI) (FT/S) WINTHROP HARBOR 50 1017.0R 1/ 3 WAUKEGAN HARBOR 58 52 130/ 10/ 14 1010.9R 1/ 3 WILMETTE BUOY 59 170/ 12/ 16 1011.8R 1/ 3 CHICAGO BUOY 60 55 1009.5R 1 HARRISON CRIB 67 170/ 15/ 16 N/A NORTHERLY ISL 66 140/ 2/ 9 N/A CALUMET HARBOR 71 150/ 11/ 15 1010.6 BURNS HARBOR 72 180/ 9/ 11 1011.9F MICHIGAN CITY 72 170/ 12/ 15 1009.5F ST. JOSEPH BUOY 59 160/ 8/ 8 1011.5F 2/ 4 $$ ILZ025>027-034>036-040-047-049-050-058-095>099-182000- WEST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS QUINCY CLOUDY 67 63 87 S21G30 29.82F TC 19 GALESBURG* PTSUNNY 72 64 75 SW8 29.88F TC 22 MACOMB* PTSUNNY 71 65 81 W14 29.88F TC 22 JACKSONVILLE* CLOUDY N/A N/A N/A SW14 29.93F $$ ILZ028>032-037-038-041>044-048-051>054-059>061-182000- CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS BLOOMINGTON CLOUDY 70 65 84 SW15G22 29.89R TC 21 DECATUR LGT RAIN 68 65 90 S15 29.96S TC 20 PEORIA NOT AVBL SPRINGFIELD LGT RAIN 68 64 87 S13 29.93S TC 20 TAYLORVILLE CLOUDY 66 64 94 SW9 30.02R TC 19 $$ ILZ033-039-045-046-055>057-062-063-182000- EAST-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHAMPAIGN LGT RAIN 69 66 90 S16 29.97R TC 21 DANVILLE* CLOUDY 70 66 88 S17 29.96F TC 21 MATTOON TSTM 68 67 96 S6 30.00S FOG TC 20 PARIS* RAIN 67 66 97 S9 30.02S TC 19 $$ ILZ079-100>102-182000- SOUTHWEST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS ALTON TSTM 66 64 94 N6 30.02F TC 19 BELLEVILLE TSTM 67 67 97 N6 30.00 VSB 3/8 TC 20 CAHOKIA* TSTM 67 65 93 N8 30.04 FOG TC 19 $$ ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182000- SOUTH-CENTRAL ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CARBONDALE LGT RAIN 75 72 88 SW16G22 30.02R TC 24 CAIRO* CLOUDY 80 72 75 S5 30.03S HX 84 TC 27 EFFINGHAM* RAIN 67 67 100 SE5 30.04R TC 20 MARION PTSUNNY 73 70 88 S9G24 30.01S TC 23 MT. VERNON TSTM 75 71 87 SW12G36 29.99S FOG TC 24 CENTRALIA* TSTM 67 66 97 CALM 30.02R TC 20 SALEM* TSTM 68 68 99 E5 30.02R VSB 3/4 TC 20 $$ ILZ067-068-072-073-078-083-087-091-182000- SOUTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS LAWRENCEVILLE LGT RAIN 72 70 93 NW13 30.01R TC 22 FLORA* LGT RAIN 68 N/A N/A N12 30.02S TC 20 FAIRFIELD* CLOUDY 81 68 65 SW17G23 29.99S HX 84 TC 27 HARRISBURG* PTSUNNY 85 68 57 SW20G25 30.00S HX 88 TC 29 $$ ABBREVIATIONS USED IN REMARKS TC - TEMPERATURE IN CELSIUS WCI - WIND CHILL INDEX HX - HEAT INDEX VSB - VISIBILITY $$