510
ASUS43 KLOT 270910
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
ROCHELLE* PTCLDY 47 47 100 NE5 30.12S TC 9
DE KALB* CLEAR 48 48 100 NE3 30.13S FOG TC 9
PERU* PTCLDY 50 48 93 N3 30.10F TC 10
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
KANKAKEE* PTCLDY 47 46 94 CALM 30.11F TC 9
WHEELING PTCLDY 48 47 96 CALM 30.12F TC 9
ROMEOVILLE* CLEAR 50 50 100 N3 30.11S FOG TC 10
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 64 240/ 6/ 8 1018.3 1/ 4
WAUKEGAN HARBOR 57 63 310/ 6/ 8 1019.1 1/ 3
WILMETTE BUOY 63 90/ 8/ 12 1021.2F 1/ 3
CHICAGO BUOY 63 63 80/ 4/ 10 1018.2 2/ 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/ 6/ 8 N/A 1/ 3
ST. JOSEPH BUOY 52 53 330/ 2/ 2 1020.0F 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
GALESBURG* CLOUDY 58 55 89 CALM 30.09S TC 15
MACOMB* CLOUDY 56 56 100 CALM 30.10S TC 14
JACKSONVILLE* CLOUDY 58 58 100 CALM 30.07S TC 15
PITTSFIELD* LGT RAIN 60 58 94 W3 30.08S TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-271000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 47 47 100 CALM 30.10F TC 8
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
LACON* CLEAR 49 47 90 CALM 30.09F TC 10
LINCOLN* MOCLDY 54 50 86 CALM 30.08S 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
RANTOUL* PTCLDY 52 48 86 NE6 30.09S TC 11
MATTOON CLEAR 56 48 74 CALM 30.06S TC 13
PARIS* PTCLDY 48 47 97 CALM 30.07F TC 9
ILZ079-100>102-271000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 58 56 94 CALM 30.06S TC 14
CAHOKIA* MOCLDY 59 58 96 CALM 30.05F TC 15
SPARTA* MOCLDY 58 55 92 CALM 30.05F TC 14
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
CAIRO* MOCLDY 60 54 80 CALM 30.02F TC 16
EFFINGHAM* CLOUDY 57 52 83 CALM 30.08R TC 14
MARION PTCLDY 54 54 100 NE1 30.03F TC 12
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
METROPOLIS* PTCLDY 56 52 86 CALM 30.03S TC 14
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
FLORA* CLOUDY 61 52 72 NE5 30.05S TC 16
FAIRFIELD* MOCLDY 61 52 71 N3 30.04S TC 16
HARRISBURG* MOCLDY 58 55 88 CALM 30.04S TC 14
ROBINSON* PTCLDY 48 48 100 NE1 30.06S TC 9
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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