748
ASUS43 KLOT 182156
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CDT MON MAY 18 2026
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR S TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-182300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 73 63 70 SW6 29.82F TC 23
ILZ003-004-008-010-011-017-018-182300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 79 61 53 SW14G22 29.84R HX 80 TC 26
PERU* CLOUDY 73 64 73 SW8 29.87S TC 23
ILZ005-006-012>014-019>023-182300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 77 64 64 SW13G25 29.85R TC 25
CHICAGO-MIDWAY NOT AVBL
AURORA CLOUDY 76 65 68 S13G21 29.87R TC 24
WAUKEGAN PTSUNNY 80 64 58 SW17G30 29.81R HX 82 TC 27
DUPAGE AIRPORT PTSUNNY 75 63 66 SW21G28 29.86R TC 24
WHEELING CLOUDY 78 64 61 SW16G25 29.85R HX 80 TC 26
MORRIS* CLOUDY 73 64 73 SW16 29.89R TC 23
NORTHERLY ISL* N/A 75 60 59 S16 N/A TC 24
LMZ740>746-182300-
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 1025.1R 2/ 3
WAUKEGAN HARBOR 70 53 210/ 14/ 21 1010.8R 2/ 3
WILMETTE BUOY 69 220/ 16/ 21 1012.2R 1/ 2
CHICAGO BUOY 68 55 220/ 16/ 19 1010.1R 1/ 3
HARRISON CRIB 75 210/ 25/ 27 N/A
NORTHERLY ISL 76 200/ 16/ 17 N/A
CALUMET HARBOR 200/ 14/ 18 1011.4
BURNS HARBOR 74 210/ 12/ 17 1012.2R
MICHIGAN CITY 75 190/ 17/ 21 1010.1F
ST. JOSEPH BUOY 64 200/ 12/ 14 1012.4R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-182300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-182300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON LGT RAIN 66 64 94 SW12 29.92F TC 19
PEORIA NOT AVBL
SPRINGFIELD PTSUNNY 67 63 87 S16G29 29.91F TC 19
TAYLORVILLE CLOUDY 64 63 94 S16 29.98R TC 18
ILZ033-039-045-046-055>057-062-063-182300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-182300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON TSTM 66 63 88 S7 30.00F TC 19
BELLEVILLE PTSUNNY 70 68 94 NE8 30.01S THUNDER TC 21
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MARION PTSUNNY 73 66 78 N21 30.04R TC 23
ILZ067-068-072-073-078-083-087-091-182300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page