575
ASUS43 KLOT 182056
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-182200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 75 64 68 SW9 29.84R TC 24
ILZ003-004-008-010-011-017-018-182200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 79 62 56 SW15G22 29.82F HX 80 TC 26
PERU* CLOUDY N/A N/A N/A S10 29.85F
ILZ005-006-012>014-019>023-182200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 77 63 61 SW15G29 29.82F TC 25
CHICAGO-MIDWAY NOT AVBL
AURORA CLOUDY 77 65 66 SW13G24 29.84F TC 25
WAUKEGAN PTSUNNY 80 63 55 SW17G33 29.78F HX 81 TC 27
DUPAGE AIRPORT PTSUNNY 78 66 66 SW18G25 29.83F HX 80 TC 26
WHEELING PTSUNNY 79 64 60 SW15G24 29.82F HX 81 TC 26
ROMEOVILLE* MOSUNNY 75 66 73 SW17G25 29.87F TC 24
NORTHERLY ISL* N/A 77 60 55 S16 N/A TC 25
LMZ740>746-182200-
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 51 1021.8R 1/ 3
WAUKEGAN HARBOR 53 230/ 14/ 17 1010.0F 2/ 3
WILMETTE BUOY 220/ 16/ 23 1011.6F 2/ 2
CHICAGO BUOY 71 55 220/ 16/ 23 1009.1F 2/ 3
HARRISON CRIB 78 220/ 21/ 28 N/A
NORTHERLY ISL 78 200/ 14/ 16 N/A
CALUMET HARBOR 190/ 16/ 23 1010.9
BURNS HARBOR 74 200/ 12/ 15 1012.2R
MICHIGAN CITY 74 190/ 16/ 19 1010.0R
ST. JOSEPH BUOY 62 190/ 10/ 14 1012.2F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-182200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-182200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD LGT RAIN 67 63 87 S15G31 29.93R TC 19
TAYLORVILLE CLOUDY 66 63 88 SW12 29.99R TC 19
ILZ033-039-045-046-055>057-062-063-182200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-182200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON TSTM 66 63 88 NW7 30.03R TC 19
BELLEVILLE RAIN 68 66 94 SE6 30.03R FOG TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MARION CLOUDY 79 73 83 NW12 30.02R HX 82 TC 26
ILZ067-068-072-073-078-083-087-091-182200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 68 66 94 N7 30.02 TC 20
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