937
ASUS43 KLOT 300509
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 AM CDT WED SEP 30 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.
ILZ001-002-007-009-015-016-024-300600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 71 54 54 S7 29.87F TC 22
STERLING* MOCLDY 71 49 45 CALM 29.90S TC 22
SAVANNA* CLOUDY 69 55 60 SE5 29.88S TC 21
ILZ003-004-008-010-011-017-018-300600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 69 48 47 S7 29.91S TC 21
FREEPORT* CLOUDY 69 53 57 S6 29.91S TC 21
ROCHELLE* MOCLDY 64 51 63 S3 29.91F TC 18
DE KALB* CLOUDY 64 51 63 S8 29.93S TC 18
ILZ005-006-012>014-019>023-300600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 69 49 48 S9 29.91F TC 21
CHICAGO-MIDWAY CLOUDY 70 50 49 S10 29.93S TC 21
AURORA CLOUDY 65 49 56 S6 29.92S TC 18
JOLIET* MOCLDY 67 53 59 S6 29.94S TC 20
WAUKEGAN CLOUDY 68 52 56 S12 29.90F TC 20
DUPAGE AIRPORT CLOUDY 67 50 54 S9 29.93S TC 19
KANKAKEE* MOCLDY 64 51 64 CALM 29.97S TC 18
WHEELING CLOUDY 68 50 52 S10 29.93S TC 20
ROMEOVILLE* CLOUDY 66 52 59 S9 29.94F TC 19
LANSING* MOCLDY 62 51 67 S7 29.95F TC 17
NORTHERLY ISL* N/A 70 49 47 S12 N/A TC 21
LMZ740>746-300600-
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 66 65 150/ 8/ 10 1012.7S 1/ 3
WAUKEGAN HARBOR 68 65 180/ 10/ 12 1013.4F 1/ 3
WILMETTE BUOY 69 150/ 12/ 16 1015.3S 1/ 3
CHICAGO BUOY 69 64 200/ 10/ 12 1012.5S 1/ 2
HARRISON CRIB 71 200/ 15/ 16 N/A
NORTHERLY ISL 70 190/ 7/ 13 N/A
CALUMET HARBOR 70 180/ 8/ 11 1013.9
MICHIGAN CITY 68 160/ 9/ 13 1012.9F
MICH CITY BUOY 65 63 170/ 10/ 12 N/A 1
ST. JOSEPH BUOY 65 62 160/ 10/ 12 1015.0F 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-300600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 68 56 65 W3 29.91R TC 20
GALESBURG* CLOUDY 69 55 62 S6 29.91F TC 21
MACOMB* MOCLDY 70 53 53 S7 29.93S TC 21
JACKSONVILLE* MOCLDY 71 50 47 S8 29.92F TC 22
PITTSFIELD* CLOUDY 72 51 47 S6 29.92F TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-300600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 64 51 60 S5 29.95S TC 18
BLOOMINGTON MOCLDY 66 51 58 S9 29.96F TC 19
DECATUR MOCLDY 67 51 56 S9 29.96F TC 19
PEORIA MOCLDY 69 50 50 S7 29.92S TC 21
LACON* MOCLDY 68 48 49 SE5 29.92S TC 20
SPRINGFIELD CLOUDY 71 48 43 S7 29.94S TC 22
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-300600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 64 51 62 S7 29.98S TC 18
RANTOUL* MOCLDY 59 52 78 CALM 29.98S TC 15
MATTOON MOCLDY 64 51 62 SE5 29.98S TC 18
PARIS* MOCLDY 59 53 79 CALM 29.99F TC 15
ILZ079-100>102-300600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 68 52 56 CALM 29.95S TC 20
CAHOKIA* MOCLDY 70 52 52 S6 29.93F TC 21
SPARTA* MOCLDY 69 49 49 S5 29.98S TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-300600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 62 58 88 CALM 29.98F TC 17
EFFINGHAM* MOCLDY 62 54 74 E3 30.00S TC 17
MARION MOCLDY 64 52 63 S3 29.98S TC 18
MT. VERNON CLOUDY 65 53 65 CALM 29.98F TC 18
CENTRALIA* CLOUDY 69 51 53 S6 29.97S TC 21
SALEM* CLOUDY 68 53 57 MISG 29.98S TC 20
METROPOLIS* MOCLDY 60 56 88 CALM 29.98F TC 16
ILZ067-068-072-073-078-083-087-091-300600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 62 55 77 CALM 29.99S TC 17
FLORA* MOCLDY 61 55 82 CALM 29.99S TC 16
FAIRFIELD* MOCLDY 62 51 68 CALM 29.98F TC 17
HARRISBURG* MOCLDY 60 55 83 CALM 29.99S TC 16
ROBINSON* MOCLDY 55 54 94 E1 29.98F TC 13
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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