487
ASUS43 KLOT 280901
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT MON SEP 28 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.
ILZ001-002-007-009-015-016-024-281000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 52 52 100 CALM 30.10 FOG TC 11
STERLING* PTCLDY 51 51 100 CALM 30.12S TC 11
SAVANNA* PTCLDY 53 53 100 CALM 30.12S FOG TC 12
ILZ003-004-008-010-011-017-018-281000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 48 48 100 CALM 30.12F FOG TC 9
FREEPORT* PTCLDY 50 48 95 CALM 30.13F TC 10
DE KALB* FOG 48 48 100 NW3 30.12S VSB 1/4 TC 9
ILZ005-006-012>014-019>023-281000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 53 50 89 CALM 30.08S TC 12
CHICAGO-MIDWAY CLEAR 53 52 96 NW6 30.08S TC 12
AURORA CLEAR 43 43 100 NW5 30.10S FOG TC 6
JOLIET* CLEAR 48 48 100 CALM 30.10S FOG TC 9
WAUKEGAN CLEAR 52 50 93 NW6 30.09S TC 11
DUPAGE AIRPORT CLEAR 47 46 97 N3 30.10S FOG TC 8
WHEELING PTCLDY 49 49 100 N3 30.11S TC 9
LANSING* PTCLDY 46 46 99 CALM 30.09S FOG TC 8
NORTHERLY ISL* N/A 60 56 86 W5 N/A TC 16
LMZ740>746-281000-
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 65 310/ 10/ 14 1017.8R 1/ 4
WAUKEGAN HARBOR 58 64 290/ 10/ 14 1018.5S 1/ 4
WILMETTE BUOY 62 340/ 10/ 14 1020.2F 2/ 4
CHICAGO BUOY 62 63 340/ 8/ 12 1017.3F 2/ 4
HARRISON CRIB 61 330/ 9/ 10 N/A
NORTHERLY ISL 59 80/ 2/ 8 N/A
CALUMET HARBOR 56 280/ 1/ 2 1018.5
MICHIGAN CITY 57 CALM 1017.7
MICH CITY BUOY 60 61 260/ 2/ 2 N/A 1/ 3
ST. JOSEPH BUOY 57 58 300/ 2/ 2 1018.7F 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-281000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 60 58 92 NE6 30.08F TC 16
MACOMB* N/A 49 49 100 CALM 30.12S FOG TC 10
ILZ028>032-037-038-041>044-048-051>054-059>061-281000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 52 50 93 NW3 30.11S TC 11
DECATUR CLEAR 51 49 92 N5 30.09F TC 11
PEORIA PTCLDY 52 50 93 CALM 30.10S TC 11
SPRINGFIELD PTCLDY 47 46 97 CALM 30.10S TC 8
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-281000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 46 45 96 NW3 30.09S TC 8
MATTOON CLEAR 45 44 97 NW6 30.08R TC 7
ILZ079-100>102-281000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* MOCLDY 63 57 81 N5 30.07S TC 17
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-281000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLEAR 48 47 94 CALM 30.09S TC 9
MT. VERNON CLEAR 43 43 100 NE3 30.07S TC 6
CENTRALIA* FOG 46 45 97 CALM 30.07S VSB 3/4 TC 8
SALEM* CLEAR 51 46 84 MISG 30.07S TC 11
ILZ067-068-072-073-078-083-087-091-281000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 53 48 83 N3 30.05S TC 12
FAIRFIELD* CLEAR 51 46 83 CALM 30.06S TC 10
HARRISBURG* CLEAR 46 46 99 CALM 30.06R TC 8
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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