720
ASUS43 KLOT 270902
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT SUN SEP 27 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.
ILZ001-002-007-009-015-016-024-271000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 60 54 80 E7 30.08F TC 16
STERLING* CLEAR 49 49 100 E5 30.11F TC 9
SAVANNA* PTCLDY 52 49 90 CALM 30.11F TC 11
ILZ003-004-008-010-011-017-018-271000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 49 48 97 CALM 30.13F TC 9
FREEPORT* PTCLDY 47 46 95 CALM 30.13F TC 9
DE KALB* CLEAR 48 48 100 NE3 30.13S FOG TC 9
ILZ005-006-012>014-019>023-271000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 51 49 92 N3 30.10F TC 11
CHICAGO-MIDWAY CLEAR 52 50 93 CALM 30.10F TC 11
AURORA CLEAR 48 48 100 CALM 30.11S FOG TC 9
JOLIET* N/A 49 49 100 CALM 30.11S FOG TC 9
WAUKEGAN CLEAR 46 46 100 CALM 30.11S FOG TC 8
DUPAGE AIRPORT CLEAR 47 45 93 N5 30.11F TC 8
WHEELING PTCLDY 48 47 96 CALM 30.12F TC 9
LANSING* CLEAR 46 46 99 CALM 30.11F TC 8
NORTHERLY ISL* N/A 59 56 89 E5 N/A TC 15
LMZ740>746-271000-
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 59 65 260/ 4/ 6 1018.4F 1/ 3
WAUKEGAN HARBOR 58 63 310/ 6/ 8 1019.2F 1/ 3
WILMETTE BUOY 64 130/ 6/ 12 1021.3F 1/ 3
CHICAGO BUOY 63 63 80/ 6/ 8 1018.3F 1/ 3
HARRISON CRIB 62 70/ 5/ 5 N/A
NORTHERLY ISL 57 80/ 3/ 4 N/A
CALUMET HARBOR 60 60/ 5/ 6 1019.5
MICHIGAN CITY 52 80/ 3/ 4 1018.8F
MICH CITY BUOY 58 62 80/ 4/ 6 N/A 1/ 3
ST. JOSEPH BUOY 52 53 320/ 2/ 4 1020.1F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-271000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 59 58 96 CALM 30.07F TC 15
MACOMB* CLOUDY 56 56 100 CALM 30.10S TC 14
ILZ028>032-037-038-041>044-048-051>054-059>061-271000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 50 49 96 NE5 30.10F TC 10
DECATUR PTCLDY 50 48 93 NE6 30.07F TC 10
PEORIA PTCLDY 54 51 90 E6 30.08F TC 12
SPRINGFIELD CLOUDY 60 56 86 NE5 30.06F TC 16
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-271000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 51 47 86 E6 30.08F TC 11
MATTOON CLEAR 56 48 74 CALM 30.06S TC 13
ILZ079-100>102-271000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* MOCLDY 59 58 96 CALM 30.05F TC 15
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-271000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLOUDY 57 52 83 CALM 30.08R TC 14
MT. VERNON MOCLDY 60 55 83 CALM 30.04F TC 16
CENTRALIA* MOCLDY 60 57 91 CALM 30.04S TC 16
SALEM* CLOUDY 64 54 69 MISG 30.05R TC 18
ILZ067-068-072-073-078-083-087-091-271000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 55 49 80 NE8 30.05S TC 13
FAIRFIELD* MOCLDY 61 52 71 N3 30.04S TC 16
HARRISBURG* MOCLDY 58 55 88 CALM 30.04S TC 14
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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