117
ASUS43 KLOT 202258
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 PM CDT WED MAY 20 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.
ILZ001-002-007-009-015-016-024-210000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 66 45 46 N6 30.18F TC 19
ILZ003-004-008-010-011-017-018-210000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 63 41 44 NE10 30.23R TC 17
PERU* MOSUNNY 68 43 40 NE14 30.19S TC 20
ILZ005-006-012>014-019>023-210000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 56 34 43 N17 30.25S TC 13
CHICAGO-MIDWAY MOSUNNY 57 36 45 NE16G25 30.25R TC 14
AURORA SUNNY 58 38 47 NE16 30.24R TC 14
WAUKEGAN SUNNY 52 34 50 NE13 30.27R TC 11
DUPAGE AIRPORT SUNNY 56 37 49 E13G23 30.25R TC 13
WHEELING MOSUNNY 54 32 43 NE12G22 30.28R TC 12
MORRIS* SUNNY 61 39 44 NE6 30.22R TC 16
ROMEOVILLE* SUNNY 59 37 44 NE17 30.24R TC 15
NORTHERLY ISL* N/A 54 38 54 MISG N/A TC 12
LMZ740>746-210000-
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 47 1022.6S 3/ 4
WAUKEGAN HARBOR 49 51 350/ 14/ 17 1023.8R 2/ 4
WILMETTE BUOY 50 60/ 16/ 21 1025.4R 3/ 4
CHICAGO BUOY 53 55 20/ 17/ 21 1023.1R 4/ 4
HARRISON CRIB 52 10/ 17/ 19 N/A
NORTHERLY ISL 55 360/ 10/ 17 N/A
CALUMET HARBOR 350/ 14/ 17 1024.3
BURNS HARBOR 51 20/ 10/ 12 1024.4S
MICHIGAN CITY 51 20/ 21/ 24 1023.1F
ST. JOSEPH BUOY 51 10/ 16/ 21 1024.7R 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-210000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD MOSUNNY 70 48 45 NE8 30.14F TC 21
TAYLORVILLE PTSUNNY 68 52 56 NE8 30.15S TC 20
ILZ033-039-045-046-055>057-062-063-210000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 68 48 48 NE17 30.15R TC 20
MATTOON PTSUNNY 67 52 58 NE10 30.13S TC 19
ILZ079-100>102-210000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLOUDY 66 55 67 NE9 30.13S TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 66 57 72 NE8 30.10F TC 19
MARION CLOUDY 64 59 82 NE9 30.10F TC 18
ILZ067-068-072-073-078-083-087-091-210000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 64 58 80 NE9 30.12F TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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