176
ASUS43 KLOT 280408
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM 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.
ILZ001-002-007-009-015-016-024-280500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 56 55 97 CALM 30.09S TC 13
STERLING* PTCLDY 54 50 86 CALM 30.11R TC 12
SAVANNA* PTCLDY 56 56 97 CALM 30.11S TC 14
ILZ003-004-008-010-011-017-018-280500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 52 51 97 CALM 30.12R TC 11
FREEPORT* PTCLDY 52 51 95 CALM 30.13S TC 11
ROCHELLE* PTCLDY 50 49 97 CALM 30.11S TC 10
DE KALB* CLEAR 54 51 89 CALM 30.12R TC 12
ILZ005-006-012>014-019>023-280500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 58 54 86 NW5 30.08F TC 14
CHICAGO-MIDWAY CLEAR 57 54 89 NW3 30.09S TC 14
AURORA CLEAR 52 50 93 CALM 30.10R TC 11
JOLIET* PTCLDY 52 52 100 CALM 30.10S FOG TC 11
WAUKEGAN CLEAR 49 49 100 NW3 30.09S FOG TC 9
DUPAGE AIRPORT CLEAR 52 49 89 CALM 30.10S TC 11
KANKAKEE* CLEAR 52 51 95 N3 30.10S TC 11
WHEELING PTCLDY 55 54 96 CALM 30.11S TC 13
ROMEOVILLE* PTCLDY 54 54 100 NE5 30.10S TC 12
LANSING* CLEAR 52 51 99 CALM 30.09F TC 11
NORTHERLY ISL* N/A 60 55 83 N5 N/A TC 16
LMZ740>746-280500-
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 60 65 310/ 6/ 8 1017.9S 1
WAUKEGAN HARBOR 60 64 270/ 4/ 6 1018.7F 1
WILMETTE BUOY 64 10/ 8/ 12 1020.7S 1/ 3
CHICAGO BUOY 64 64 10/ 6/ 10 1017.7S 1/ 3
HARRISON CRIB 64 10/ 7/ 8 N/A
NORTHERLY ISL 61 350/ 5/ 7 N/A
CALUMET HARBOR 62 350/ 4/ 5 1018.9
MICHIGAN CITY 61 20/ 6/ 6 1017.7S
MICH CITY BUOY 62 62 20/ 4/ 6 N/A 1/ 3
ST. JOSEPH BUOY 56 58 10/ 2/ 4 1019.2S 1
ILZ025>027-034>036-040-047-049-050-058-095>099-280500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 60 56 86 N3 30.09S TC 16
GALESBURG* PTCLDY 55 54 96 CALM 30.10S TC 13
MACOMB* PTCLDY 57 56 98 NE3 30.12R TC 14
JACKSONVILLE* MOCLDY 61 60 98 CALM 30.08S TC 16
PITTSFIELD* PTCLDY 64 55 75 N6 30.10R TC 18
ILZ028>032-037-038-041>044-048-051>054-059>061-280500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 50 49 95 CALM 30.09F TC 10
BLOOMINGTON PTCLDY 54 48 80 E8 30.10S TC 12
DECATUR PTCLDY 53 48 83 NE5 30.07S TC 12
PEORIA PTCLDY 58 51 78 CALM 30.08S TC 14
LACON* PTCLDY 53 49 87 CALM 30.08S TC 12
LINCOLN* PTCLDY 56 50 79 N3 30.08R TC 14
SPRINGFIELD MOCLDY 54 51 90 N3 30.07R TC 12
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-280500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 58 47 66 NE7 30.08R TC 14
RANTOUL* CLEAR 55 49 79 NE6 30.08S TC 13
MATTOON CLEAR 55 46 71 CALM 30.06R TC 13
PARIS* CLEAR 56 48 72 NE6 30.07R TC 14
ILZ079-100>102-280500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 65 55 71 CALM 30.06S TC 18
CAHOKIA* PTCLDY 63 60 90 CALM 30.05R TC 17
SPARTA* PTCLDY 64 54 69 N3 30.06R TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-280500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 60 55 83 CALM 30.03R TC 15
EFFINGHAM* PTCLDY 53 51 90 CALM 30.07R TC 12
MARION PTCLDY 55 54 94 CALM 30.04R TC 13
MT. VERNON PTCLDY 48 48 100 CALM 30.04S TC 9
CENTRALIA* PTCLDY 53 50 89 CALM 30.05R TC 12
SALEM* PTCLDY 55 50 85 MISG 30.04S TC 13
METROPOLIS* PTCLDY 55 53 94 CALM 30.03S TC 13
ILZ067-068-072-073-078-083-087-091-280500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 56 50 80 CALM 30.04R TC 13
FLORA* PTCLDY 55 52 88 CALM 30.04F TC 13
FAIRFIELD* PTCLDY 54 46 74 CALM 30.04R TC 12
HARRISBURG* PTCLDY 53 48 83 CALM 30.04R TC 12
ROBINSON* CLEAR 48 48 100 CALM 30.04R TC 9
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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