182
ASUS43 KLOT 181356
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM 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.
ILZ001-002-007-009-015-016-024-181500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE NOT AVBL
ILZ003-004-008-010-011-017-018-181500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* CLOUDY 75 66 73 S10 29.85R TC 24
ILZ005-006-012>014-019>023-181500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 75 64 68 S13G23 29.84S TC 24
CHICAGO-MIDWAY NOT AVBL
AURORA PTSUNNY 74 67 78 S14G25 29.85R TC 23
WAUKEGAN PTSUNNY 76 65 68 S17G26 29.82F TC 24
DUPAGE AIRPORT PTSUNNY 74 65 73 S13G22 29.84S TC 23
WHEELING NOT AVBL
MORRIS* CLOUDY 75 64 69 SW10 29.86R TC 24
ROMEOVILLE* CLOUDY 75 66 73 SW16G28 29.87R TC 24
NORTHERLY ISL* N/A 77 62 59 SW18 N/A TC 25
LMZ740>746-181500-
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 1018.1R 1/ 4
WAUKEGAN HARBOR 61 50 170/ 6/ 10 1011.1F 1/ 4
HARRISON CRIB 75 200/ 22/ 25 N/A
NORTHERLY ISL 76 190/ 13/ 20 N/A
CALUMET HARBOR 170/ 11/ 15 1011.4
BURNS HARBOR 76 190/ 8/ 12 1012.5S
MICHIGAN CITY 77 180/ 17/ 20 1010.4F
ST. JOSEPH BUOY 63 190/ 12/ 14 1013.0S 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-181500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-181500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA TSTM 70 66 87 W32G49 29.90R FOG TC 21
SPRINGFIELD NOT AVBL
TAYLORVILLE CLOUDY 75 68 78 S20G26 29.90S TC 24
ILZ033-039-045-046-055>057-062-063-181500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-181500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 77 70 78 S18G26 29.92R TC 25
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 79 69 71 SW14G24 29.98R HX 81 TC 26
MARION PTSUNNY 81 70 69 SW14G23 29.99R HX 84 TC 27
ILZ067-068-072-073-078-083-087-091-181500-
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
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