170
ASUS43 KLOT 210558
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 AM CDT THU MAY 21 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.
ILZ001-002-007-009-015-016-024-210700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 50 38 63 E9 30.26S TC 10
6HR MIN TEMP: 50; 6HR MAX TEMP: 65;
ILZ003-004-008-010-011-017-018-210700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* PTCLDY 48 36 61 NE8 30.27S TC 9
ILZ005-006-012>014-019>023-210700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 49 35 58 NE10 30.27F TC 9
6HR MIN TEMP: 48; 6HR MAX TEMP: 54;
CHICAGO-MIDWAY NOT AVBL
AURORA PTCLDY 46 36 68 NE9 30.26S TC 8
6HR MIN TEMP: 44; 6HR MAX TEMP: 56;
WAUKEGAN PTCLDY 48 37 65 NE7 30.29R TC 9
6HR MIN TEMP: 44; 6HR MAX TEMP: 50;
DUPAGE AIRPORT PTCLDY 44 37 76 N7 30.26F TC 7
6HR MIN TEMP: 41; 6HR MAX TEMP: 53;
WHEELING PTCLDY 48 37 65 NE5 30.29F TC 9
6HR MIN TEMP: 45; 6HR MAX TEMP: 52;
MORRIS* CLEAR 46 34 61 CALM 30.26R TC 8
NORTHERLY ISL* N/A 51 40 65 N17 N/A TC 11
LMZ740>746-210700-
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 48 1023.1R 3/ 5
WAUKEGAN HARBOR 49 50 350/ 12/ 16 1024.3R 3/ 5
WILMETTE BUOY 51 90/ 17/ 23 1025.5F 3/ 5
CHICAGO BUOY 52 54 50/ 17/ 23 1023.4R 3/ 5
HARRISON CRIB 52 40/ 20/ 24 N/A
NORTHERLY ISL 50 10/ 11/ 12 N/A
CALUMET HARBOR 10/ 7/ 11 1024.7
BURNS HARBOR 52 40/ 8/ 10 1024.7S
MICHIGAN CITY 52 30/ 16/ 18 1023.4R
ST. JOSEPH BUOY 53 50/ 14/ 17 1024.9R 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-210700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD LGT RAIN 53 39 59 NE10 30.21F TC 12
6HR MIN TEMP: 53; 6HR MAX TEMP: 69; 6HR PCP: TRACE;
TAYLORVILLE MOCLDY 54 41 62 NE7 30.21S TC 12
ILZ033-039-045-046-055>057-062-063-210700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-210700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
ILZ067-068-072-073-078-083-087-091-210700-
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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