680
ASUS43 KLOT 211956
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 PM 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.
ILZ001-002-007-009-015-016-024-212100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 68 48 48 NE14 30.18F TC 20
ILZ003-004-008-010-011-017-018-212100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* PTSUNNY 68 46 45 E16 30.20F TC 20
ILZ005-006-012>014-019>023-212100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 57 43 59 NE18G24 30.26F TC 14
CHICAGO-MIDWAY NOT AVBL
AURORA PTSUNNY 63 46 54 NE15G24 30.23F TC 17
WAUKEGAN PTSUNNY 51 41 68 NE10 30.29F TC 11
DUPAGE AIRPORT PTSUNNY 59 46 62 NE15 30.25F TC 15
WHEELING PTSUNNY 55 42 61 NE10G21 30.29F TC 13
ROMEOVILLE* SUNNY 64 48 55 NE16G26 30.23F TC 18
NORTHERLY ISL* N/A 55 45 68 N15 N/A TC 13
LMZ740>746-212100-
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 1024.5R 3/ 4
WAUKEGAN HARBOR 47 48 340/ 14/ 17 1024.4F 2/ 4
WILMETTE BUOY 48 70/ 17/ 23 1025.8F 3/ 4
CHICAGO BUOY 52 54 30/ 17/ 21 1023.4F 3/ 4
HARRISON CRIB 51 30/ 21/ 22 N/A
NORTHERLY ISL 55 30/ 12/ 13 N/A
CALUMET HARBOR 360/ 13/ 18 1024.9
BURNS HARBOR 53 30/ 10/ 12 1024.7F
MICHIGAN CITY 53 20/ 19/ 21 1023.7F
ST. JOSEPH BUOY 53 360/ 14/ 17 1025.2F 3/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-212100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-212100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD MOSUNNY 72 45 37 E15G25 30.12F TC 22
TAYLORVILLE CLOUDY 66 50 55 E13 30.13F TC 19
ILZ033-039-045-046-055>057-062-063-212100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 66 43 43 E16G25 30.16F TC 19
ILZ079-100>102-212100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 68 57 68 E9 30.11F TC 20
CAHOKIA* CLOUDY 68 56 65 NE9 30.10F TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-212100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 66 59 77 NE9 30.07F TC 19
MARION CLOUDY 64 59 82 NE6 30.08F TC 18
ILZ067-068-072-073-078-083-087-091-212100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 68 55 63 NE14 30.10F TC 20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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