444
ASUS43 KLOT 210056
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-210200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 63 44 50 N8 30.18R TC 17
ILZ003-004-008-010-011-017-018-210200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 55 35 47 E8G22 30.26R TC 13
PERU* CLEAR 61 39 44 NE20 30.21R TC 16
ILZ005-006-012>014-019>023-210200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 52 33 48 NE14 30.27R TC 11
CHICAGO-MIDWAY NOT AVBL
AURORA CLEAR 52 36 54 NE15 30.25R TC 11
WAUKEGAN CLEAR 48 34 58 N9 30.27F TC 9
DUPAGE AIRPORT CLEAR 50 34 54 NE10 30.26R TC 10
WHEELING PTCLDY 50 33 52 NE8 30.29R TC 10
MORRIS* CLEAR 55 37 50 NE7 30.23S TC 13
ROMEOVILLE* CLEAR 54 37 54 NE12G20 30.26R TC 12
NORTHERLY ISL* N/A 50 35 56 N14 N/A TC 10
LMZ740>746-210200-
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 1022.7S 2/ 4
WAUKEGAN HARBOR 49 51 330/ 12/ 16 1024.1R 2/ 4
WILMETTE BUOY 50 40/ 17/ 21 1025.6R 3/ 4
CHICAGO BUOY 52 54 10/ 17/ 23 1023.4R 3/ 4
HARRISON CRIB 51 10/ 17/ 20 N/A
NORTHERLY ISL 51 340/ 10/ 15 N/A
CALUMET HARBOR 350/ 10/ 18 1024.7R
BURNS HARBOR 50 30/ 11/ 13 1024.7R
MICHIGAN CITY 50 20/ 21/ 23 1023.3R
ST. JOSEPH BUOY 50 10/ 16/ 19 1024.8R 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-210200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD MOCLDY 67 50 54 E10 30.14R TC 19
TAYLORVILLE MOCLDY 64 52 63 NE5 30.14R TC 18
ILZ033-039-045-046-055>057-062-063-210200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-210200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 64 54 68 VRB5 30.14S TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
ILZ067-068-072-073-078-083-087-091-210200-
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