944
ASUS43 KLOT 301012
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 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.
ILZ001-002-007-009-015-016-024-301100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE RAIN 64 62 93 S6 29.87R FOG TC 18
STERLING* RAIN 61 61 100 VRB5 29.90S FOG TC 16
SAVANNA* RAIN 62 62 99 S12 29.86F TC 17
ILZ003-004-008-010-011-017-018-301100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 61 57 87 SE6 29.90S TC 16
FREEPORT* CLOUDY 61 60 95 S6 29.90S TC 16
ROCHELLE* LGT RAIN 60 58 92 S6 29.91S TC 16
DE KALB* DRIZZLE 59 56 89 S5 29.92R TC 15
PERU* DRIZZLE 63 57 82 SW3 29.92R TC 17
ILZ005-006-012>014-019>023-301100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 68 51 54 S9 29.89S TC 20
CHICAGO-MIDWAY CLOUDY 68 51 54 S8 29.91R TC 20
AURORA CLOUDY 62 55 77 CALM 29.90S TC 17
JOLIET* MOCLDY 66 54 65 CALM 29.91S TC 19
WAUKEGAN LGT RAIN 60 58 92 CALM 29.89S TC 16
DUPAGE AIRPORT CLOUDY 64 54 69 S5 29.91R TC 18
KANKAKEE* MOCLDY 65 52 63 S7 29.93S TC 18
WHEELING CLOUDY 64 57 78 S3 29.91S TC 18
ROMEOVILLE* CLOUDY 63 55 77 S8 29.92R TC 17
LANSING* CLOUDY 64 53 67 S5 29.92S TC 18
NORTHERLY ISL* N/A 69 49 48 S8 N/A TC 21
LMZ740>746-301100-
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 50/ 4/ 6 1012.0 1/ 4
WAUKEGAN HARBOR 67 65 40/ 4/ 4 1013.1 1/ 3
WILMETTE BUOY 67 140/ 4/ 8 1014.6F 1/ 3
CHICAGO BUOY 68 64 190/ 6/ 8 1011.7 1/ 2
HARRISON CRIB 70 190/ 15/ 16 N/A
NORTHERLY ISL 69 230/ 8/ 9 N/A
CALUMET HARBOR 68 180/ 6/ 8 1012.8F
MICHIGAN CITY 67 170/ 10/ 14 1012.0R
MICH CITY BUOY 65 62 180/ 10/ 12 N/A 1/ 2
ST. JOSEPH BUOY 65 62 180/ 8/ 10 1014.3R 1/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-301100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 66 58 75 S5 29.86F TC 19
GALESBURG* LGT RAIN 62 62 100 S3 29.91R TC 17
MACOMB* LGT RAIN 62 62 100 SE3 29.90S TC 17
JACKSONVILLE* CLOUDY 68 53 58 S5 29.90R TC 20
PITTSFIELD* CLOUDY 67 56 67 CALM 29.90S TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-301100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC LGT RAIN 62 58 87 CALM 29.93R TC 17
BLOOMINGTON LGT RAIN 62 56 80 SW5 29.94R TC 17
DECATUR MOCLDY 66 53 63 S7 29.93S TC 19
PEORIA LGT RAIN 61 59 93 E3 29.91F TC 16
LACON* RAIN 61 56 85 CALM 29.92R TC 16
SPRINGFIELD CLOUDY 69 51 52 CALM 29.90S TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-301100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 65 52 62 S7 29.94S TC 18
RANTOUL* MOCLDY 61 54 77 S3 29.94S TC 16
MATTOON MOCLDY 65 53 65 S6 29.93S TC 18
PARIS* MOCLDY 62 54 74 S5 29.95F TC 17
ILZ079-100>102-301100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 65 56 74 CALM 29.91S TC 18
BELLEVILLE CLOUDY 65 58 80 CALM 29.89S TC 18
CAHOKIA* MOCLDY 67 53 61 CALM 29.90S TC 19
SPARTA* MOCLDY 66 51 57 CALM 29.94R TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-301100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 60 58 93 CALM 29.96R TC 16
EFFINGHAM* MOCLDY 63 52 68 SE3 29.96S TC 17
MARION MOCLDY 64 52 63 S6 29.95R TC 18
MT. VERNON MOCLDY 62 54 74 CALM 29.95R TC 17
CENTRALIA* MOCLDY 67 52 58 S3 29.94R TC 19
SALEM* MOCLDY 67 53 61 MISG 29.93S TC 20
METROPOLIS* PTCLDY 57 56 97 CALM 29.96S TC 14
ILZ067-068-072-073-078-083-087-091-301100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 60 56 86 CALM 29.96S TC 16
FLORA* MOCLDY 59 55 88 CALM 29.95S TC 15
FAIRFIELD* MOCLDY 62 51 67 CALM 29.95S TC 17
HARRISBURG* MOCLDY 57 55 91 CALM 29.96R TC 14
ROBINSON* MOCLDY 55 55 100 E1 29.95S TC 13
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