500
ASUS43 KLOT 300903
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-301000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE RAIN 63 62 97 S10G20 29.86F FOG TC 17
STERLING* LGT RAIN 64 56 75 VRB5 29.90R TC 18
SAVANNA* HVY RAIN 63 60 92 SW8 29.88R TC 17
ILZ003-004-008-010-011-017-018-301000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 62 55 77 SE6 29.90S TC 17
FREEPORT* CLOUDY 62 60 93 CALM 29.90S TC 17
DE KALB* LGT RAIN 61 54 76 S6 29.91F TC 16
ILZ005-006-012>014-019>023-301000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 68 51 54 S6 29.89F TC 20
CHICAGO-MIDWAY CLOUDY 69 51 52 S6 29.90F TC 21
AURORA MOCLDY 63 53 70 S3 29.90F TC 17
JOLIET* MOCLDY 67 54 62 CALM 29.91S TC 19
WAUKEGAN CLOUDY 65 53 65 W3 29.89S TC 18
DUPAGE AIRPORT CLOUDY 65 53 65 S6 29.90F TC 18
WHEELING CLOUDY 68 52 56 S6 29.91F TC 20
LANSING* CLOUDY 64 53 66 S7 29.93S TC 18
NORTHERLY ISL* N/A 69 49 48 S6 N/A TC 21
LMZ740>746-301000-
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 68 65 220/ 4/ 6 1012.2F 1/ 3
WAUKEGAN HARBOR 68 65 190/ 6/ 8 1013.1S 1/ 3
WILMETTE BUOY 69 170/ 8/ 12 1014.6F 1/ 3
CHICAGO BUOY 68 64 210/ 6/ 8 1011.8F 1/ 3
HARRISON CRIB 70 190/ 15/ 16 N/A
NORTHERLY ISL 69 190/ 8/ 10 N/A
CALUMET HARBOR 68 190/ 6/ 10 1012.9
MICHIGAN CITY 67 170/ 12/ 15 1011.9F
MICH CITY BUOY 65 62 190/ 10/ 12 N/A 1/ 2
ST. JOSEPH BUOY 65 62 180/ 10/ 12 1014.2F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-301000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 65 59 81 SE7 29.87F TC 18
MACOMB* CLOUDY 62 62 100 SE3 29.91F TC 17
ILZ028>032-037-038-041>044-048-051>054-059>061-301000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOCLDY 64 53 67 S8 29.93S TC 18
DECATUR MOCLDY 65 52 62 S7 29.93F TC 18
PEORIA LGT RAIN 63 57 81 SW6 29.92R TC 17
SPRINGFIELD CLOUDY 69 51 52 S6 29.90F TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-301000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 65 52 62 S8 29.94F TC 18
MATTOON MOCLDY 65 53 65 S8 29.93F TC 18
ILZ079-100>102-301000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE PTCLDY 66 56 70 CALM 29.89F TC 19
CAHOKIA* MOCLDY 68 52 56 S3 29.90F TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-301000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* MOCLDY 63 53 70 SE5 29.96F TC 17
MT. VERNON MOCLDY 59 55 87 CALM 29.94F TC 15
CENTRALIA* MOCLDY 65 54 65 SE8 29.93F TC 19
SALEM* MOCLDY 66 54 64 MISG 29.93F TC 19
ILZ067-068-072-073-078-083-087-091-301000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 61 56 83 E3 29.96F TC 16
FAIRFIELD* MOCLDY 60 52 72 CALM 29.95F TC 16
HARRISBURG* MOCLDY 57 55 91 CALM 29.96S TC 14
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page