031
ASUS43 KLOT 290303
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM 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.
ILZ001-002-007-009-015-016-024-290400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 54 53 97 CALM 30.03S TC 12
STERLING* CLEAR 58 48 69 E5 30.05F TC 14
SAVANNA* CLEAR 60 57 91 CALM 30.04F TC 15
ILZ003-004-008-010-011-017-018-290400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 56 51 84 CALM 30.07S TC 13
FREEPORT* CLEAR 56 51 82 SE3 30.07F TC 14
DE KALB* CLEAR 58 53 84 CALM 30.07S TC 14
ILZ005-006-012>014-019>023-290400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 60 57 89 CALM 30.05S TC 16
CHICAGO-MIDWAY CLEAR 63 59 87 E5 30.05S TC 17
AURORA CLEAR 56 53 90 CALM 30.06R TC 13
JOLIET* CLEAR 57 56 94 CALM 30.07R TC 14
WAUKEGAN CLEAR 54 54 100 CALM 30.06R TC 12
DUPAGE AIRPORT CLEAR 57 52 83 CALM 30.06S TC 14
WHEELING CLEAR 59 57 93 CALM 30.07S TC 15
LANSING* CLEAR 55 53 94 CALM 30.06S TC 13
NORTHERLY ISL* N/A 60 58 92 NE2 N/A TC 16
LMZ740>746-290400-
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 63 65 300/ 4/ 4 1017.0R 0
WAUKEGAN HARBOR 63 65 260/ 2/ 2 1017.8R 1
WILMETTE BUOY 65 60/ 4/ 4 1019.7F 1
CHICAGO BUOY 64 64 80/ 2/ 4 1016.6F 1
HARRISON CRIB 64 70/ 4/ 4 N/A
NORTHERLY ISL 61 50/ 3/ 4 N/A
CALUMET HARBOR 63 30/ 3/ 4 1017.7
MICHIGAN CITY 62 60/ 4/ 5 1016.9F
MICH CITY BUOY 62 62 60/ 6/ 6 N/A 1
ST. JOSEPH BUOY 61 61 30/ 4/ 4 1018.5F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-290400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 62 52 69 E8 30.02F TC 17
MACOMB* CLEAR 51 50 99 CALM 30.06F TC 10
ILZ028>032-037-038-041>044-048-051>054-059>061-290400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 60 49 66 NE8 30.07R TC 16
DECATUR CLEAR 55 49 80 CALM 30.05S TC 13
PEORIA CLEAR 55 51 86 CALM 30.04F TC 13
SPRINGFIELD CLEAR 52 49 89 CALM 30.04S TC 11
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-290400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 55 48 77 SE5 30.05R TC 13
MATTOON CLEAR 59 49 69 CALM 30.04S TC 15
ILZ079-100>102-290400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 57 50 77 CALM 30.03S TC 14
CAHOKIA* CLEAR 56 55 97 CALM 30.02R TC 13
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-290400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLEAR 55 53 92 CALM 30.05F TC 13
MT. VERNON CLEAR 52 50 93 CALM 30.03S TC 11
CENTRALIA* CLEAR 53 48 83 CALM 30.03S TC 12
SALEM* CLEAR 55 49 79 MISG 30.03S TC 13
ILZ067-068-072-073-078-083-087-091-290400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 58 51 78 CALM 30.03S TC 14
FAIRFIELD* CLEAR 60 48 64 CALM 30.03S TC 16
HARRISBURG* CLEAR 56 51 84 CALM 30.03S TC 13
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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