903
ASUS43 KLOT 212256
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 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.
ILZ001-002-007-009-015-016-024-220000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 69 45 41 E12 30.12F TC 21
ILZ003-004-008-010-011-017-018-220000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
ILZ005-006-012>014-019>023-220000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 55 39 54 NE18G25 30.23S TC 13
CHICAGO-MIDWAY NOT AVBL
AURORA PTSUNNY 61 44 53 NE16 30.20S TC 16
WAUKEGAN MOSUNNY 50 38 63 NE14G26 30.25F TC 10
DUPAGE AIRPORT MOSUNNY 58 43 57 E17G23 30.21F TC 14
WHEELING MOSUNNY 53 39 59 NE13G21 30.25S TC 12
MORRIS* MOSUNNY 64 43 45 E13G18 30.18S TC 18
ROMEOVILLE* MOSUNNY 63 46 55 NE18 30.20F TC 17
NORTHERLY ISL* N/A 51 41 68 N14 N/A TC 11
LMZ740>746-220000-
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 50 1024.6R 3/ 4
WAUKEGAN HARBOR 47 49 340/ 17/ 23 1023.1F 3/ 4
WILMETTE BUOY 48 60/ 21/ 29 1024.4F 4/ 5
CHICAGO BUOY 50 55 360/ 17/ 23 1022.3F 4/ 5
HARRISON CRIB 49 360/ 21/ 22 N/A
NORTHERLY ISL 52 350/ 13/ 16 N/A
CALUMET HARBOR 340/ 12/ 17 1023.6
BURNS HARBOR 51 30/ 9/ 10 1023.7S
MICHIGAN CITY 51 30/ 14/ 15 1022.5F
ST. JOSEPH BUOY 52 10/ 12/ 16 1023.5F 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-220000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-220000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD MOSUNNY 67 46 47 E12 30.11S TC 19
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-220000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 66 46 48 E14 30.12F TC 19
ILZ079-100>102-220000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 68 57 68 E9 30.08S TC 20
CAHOKIA* CLOUDY 67 58 72 E8 30.06F TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-220000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 66 60 81 NE9 30.04F TC 19
MARION CLOUDY 66 61 82 NE12 30.05F TC 19
ILZ067-068-072-073-078-083-087-091-220000-
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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