577
ASUS43 KLOT 211856
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-212000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 66 48 52 E14 30.20F TC 19
ILZ003-004-008-010-011-017-018-212000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 63 43 48 VRB7G21 30.27F TC 17
PERU* CLOUDY 66 46 48 NE16G23 30.22F TC 19
ILZ005-006-012>014-019>023-212000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 56 43 61 N14 30.28F TC 13
CHICAGO-MIDWAY NOT AVBL
AURORA CLOUDY 62 47 57 E14G25 30.25F TC 17
WAUKEGAN PTSUNNY 51 39 63 NE13G20 30.31F TC 11
DUPAGE AIRPORT CLOUDY 58 45 62 NE16 30.26F TC 14
WHEELING CLOUDY 51 41 68 NE9G20 30.31F TC 11
MORRIS* PTSUNNY 66 46 48 E14G20 30.22F TC 19
ROMEOVILLE* SUNNY 63 48 59 NE14G21 30.25F TC 17
NORTHERLY ISL* N/A 55 46 71 N13 N/A TC 13
LMZ740>746-212000-
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 1024.2R 2/ 3
WAUKEGAN HARBOR 47 48 340/ 14/ 17 1025.1F 2/ 4
WILMETTE BUOY 49 80/ 16/ 19 1026.6S 3/ 4
CHICAGO BUOY 52 54 30/ 17/ 21 1024.0F 3/ 5
HARRISON CRIB 51 30/ 17/ 19 N/A
NORTHERLY ISL 53 10/ 10/ 15 N/A
CALUMET HARBOR 340/ 10/ 15 1025.7
BURNS HARBOR 52 20/ 9/ 11 1025.4S
MICHIGAN CITY 53 10/ 19/ 22 1024.5R
ST. JOSEPH BUOY 53 360/ 14/ 16 1026.0R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-212000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-212000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD MOSUNNY 71 45 39 NE16 30.14F TC 22
TAYLORVILLE CLOUDY 68 52 56 E10G23 30.14F TC 20
ILZ033-039-045-046-055>057-062-063-212000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ079-100>102-212000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 68 55 64 NE8 30.13S TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-212000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 66 58 75 N7 30.10F TC 19
MARION CLOUDY 64 57 77 N9 30.11S TC 18
ILZ067-068-072-073-078-083-087-091-212000-
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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