846
ASUS43 KLOT 300803
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-300900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE HVY RAIN 63 61 93 S9 29.88R FOG TC 17
STERLING* CLOUDY 64 55 72 CALM 29.89F TC 18
SAVANNA* DRIZZLE 63 60 89 S3 29.88S TC 17
ILZ003-004-008-010-011-017-018-300900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 65 54 67 S5 29.90F TC 18
FREEPORT* CLOUDY 63 60 90 S3 29.91S TC 17
DE KALB* CLOUDY 61 53 74 S6 29.92S TC 16
ILZ005-006-012>014-019>023-300900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE LGT RAIN 69 51 52 S7 29.90F TC 21
CHICAGO-MIDWAY CLOUDY 69 51 52 S8 29.91F TC 21
AURORA CLOUDY 64 52 64 SE3 29.91F TC 18
JOLIET* CLOUDY 67 54 61 CALM 29.92S TC 20
WAUKEGAN CLOUDY 66 52 60 SW7 29.89F TC 19
DUPAGE AIRPORT LGT RAIN 65 54 67 S5 29.91F TC 18
WHEELING CLOUDY 70 51 51 SW10 29.92S TC 21
LANSING* CLOUDY 64 52 65 S7 29.93F TC 18
NORTHERLY ISL* N/A 69 49 48 S7 N/A TC 21
LMZ740>746-300900-
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 65 170/ 8/ 12 1012.4F 1/ 4
WAUKEGAN HARBOR 69 65 220/ 8/ 12 1013.3S 1/ 3
WILMETTE BUOY 69 160/ 10/ 14 1014.8F 1/ 3
CHICAGO BUOY 68 64 200/ 8/ 12 1012.0S 1/ 3
HARRISON CRIB 70 180/ 13/ 13 N/A
NORTHERLY ISL 69 210/ 7/ 11 N/A
CALUMET HARBOR 67 180/ 5/ 8 1013.3F
MICHIGAN CITY 67 180/ 12/ 15 1012.4F
MICH CITY BUOY 64 63 180/ 10/ 12 N/A 1/ 2
ST. JOSEPH BUOY 66 62 180/ 10/ 14 1014.5F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-300900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 65 59 81 SE6 29.88F TC 18
MACOMB* LGT RAIN 62 62 100 CALM 29.93F TC 17
ILZ028>032-037-038-041>044-048-051>054-059>061-300900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOCLDY 66 52 60 S10 29.93F TC 19
DECATUR MOCLDY 66 52 60 S8 29.94F TC 19
PEORIA LGT RAIN 65 55 70 S3 29.91S TC 18
SPRINGFIELD MOCLDY 69 50 50 S8 29.91S TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-300900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 64 51 62 S6 29.95F TC 18
MATTOON CLOUDY 65 52 62 S7 29.95F TC 18
ILZ079-100>102-300900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLOUDY 69 51 52 VRB5 29.91F TC 21
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-300900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLOUDY 62 54 75 E5 29.97F TC 17
MT. VERNON MOCLDY 60 55 83 CALM 29.96F TC 16
CENTRALIA* CLOUDY 67 53 61 SE7 29.94F TC 19
SALEM* CLOUDY 66 54 63 MISG 29.95F TC 19
ILZ067-068-072-073-078-083-087-091-300900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 61 56 83 N3 29.97F TC 16
FAIRFIELD* MOCLDY 61 51 70 CALM 29.96F TC 16
HARRISBURG* MOCLDY 57 55 91 CALM 29.97S TC 14
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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