308
ASUS43 KLOT 270701
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-270800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 59 57 93 CALM 30.10S TC 15
STERLING* PTCLDY 51 49 92 E6 30.13S TC 11
SAVANNA* MOCLDY 56 51 85 E5 30.13S TC 13
ILZ003-004-008-010-011-017-018-270800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 49 48 97 CALM 30.15S TC 9
FREEPORT* PTCLDY 49 48 95 E5 30.15F TC 10
DE KALB* PTCLDY 49 49 98 NE3 30.14S TC 10
ILZ005-006-012>014-019>023-270800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 53 49 86 CALM 30.11F TC 12
CHICAGO-MIDWAY PTCLDY 55 52 89 CALM 30.12F TC 13
AURORA PTCLDY 50 49 96 CALM 30.12F TC 10
JOLIET* PTCLDY 55 54 97 CALM 30.12F TC 13
WAUKEGAN PTCLDY 47 47 100 CALM 30.12F TC 8
DUPAGE AIRPORT PTCLDY 48 45 89 N3 30.13S TC 9
WHEELING PTCLDY 49 48 97 CALM 30.14F TC 9
LANSING* PTCLDY 47 47 97 CALM 30.13S FOG TC 9
NORTHERLY ISL* N/A 59 55 87 NE5 N/A TC 15
LMZ740>746-270800-
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 61 65 250/ 4/ 6 1018.8F 1/ 3
WAUKEGAN HARBOR 60 63 350/ 6/ 6 1019.6F 1/ 3
WILMETTE BUOY 64 110/ 4/ 6 1021.6F 1/ 3
CHICAGO BUOY 63 63 80/ 6/ 8 1018.6F 2/ 3
HARRISON CRIB 62 80/ 7/ 7 N/A
NORTHERLY ISL 59 50/ 4/ 5 N/A
CALUMET HARBOR 60 50/ 5/ 7 1020.1
MICHIGAN CITY 54 80/ 2/ 3 1019.7S
MICH CITY BUOY 58 62 80/ 4/ 6 N/A 1/ 3
ST. JOSEPH BUOY 53 52 50/ 4/ 4 1020.7F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-270800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 59 57 93 CALM 30.07S TC 15
MACOMB* MOCLDY 55 55 100 CALM 30.10F TC 13
ILZ028>032-037-038-041>044-048-051>054-059>061-270800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTCLDY 52 50 93 NE5 30.11F TC 11
DECATUR PTCLDY 52 50 93 NE7 30.09S TC 11
PEORIA MOCLDY 59 49 69 E7 30.09S TC 15
SPRINGFIELD MOCLDY 61 58 90 CALM 30.07F TC 16
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-270800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 54 48 80 E6 30.10F TC 12
MATTOON PTCLDY 54 49 83 E6 30.07F TC 12
ILZ079-100>102-270800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* MOCLDY 58 57 97 CALM 30.06S TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-270800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* MOCLDY 57 55 94 CALM 30.08F TC 14
MT. VERNON MOCLDY 60 53 77 N3 30.05F TC 16
CENTRALIA* MOCLDY 59 56 89 CALM 30.06S TC 15
SALEM* CLOUDY 65 54 67 MISG 30.06S TC 18
ILZ067-068-072-073-078-083-087-091-270800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 55 51 86 NE5 30.07S TC 13
FAIRFIELD* MOCLDY 62 52 70 CALM 30.05S TC 17
HARRISBURG* MOCLDY 61 52 71 CALM 30.05S TC 16
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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