512
ASUS43 KLOT 301101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 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.
ILZ001-002-007-009-015-016-024-301200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE RAIN 64 62 93 S5 29.87S FOG TC 18
STERLING* CLOUDY 62 62 100 VRB6 29.90S FOG TC 17
SAVANNA* DRIZZLE 63 63 99 S12 29.86S TC 17
ILZ003-004-008-010-011-017-018-301200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD RAIN 60 58 92 S8 29.92R FOG TC 16
FREEPORT* CLOUDY 62 61 95 S10 29.90S TC 17
DE KALB* DRIZZLE 61 57 87 SW8 29.92S TC 16
ILZ005-006-012>014-019>023-301200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE LGT RAIN 66 53 63 SW5 29.90R TC 19
CHICAGO-MIDWAY LGT RAIN 67 52 58 SW7 29.91S TC 19
AURORA LGT RAIN 62 56 80 SW5 29.92R TC 17
JOLIET* CLOUDY 65 55 71 CALM 29.93R TC 18
WAUKEGAN LGT RAIN 61 57 87 SW3 29.90R TC 16
DUPAGE AIRPORT LGT RAIN 62 57 83 S6 29.92R TC 17
WHEELING CLOUDY 65 55 70 S5 29.92R TC 18
ROMEOVILLE* LGT RAIN 63 55 77 S6 29.93R TC 17
LANSING* CLOUDY 64 53 68 SW5 29.94R TC 18
NORTHERLY ISL* N/A 68 50 52 S6 N/A TC 20
LMZ740>746-301200-
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 65 110/ 4/ 6 1012.3R 1/ 3
WAUKEGAN HARBOR 66 65 160/ 2/ 4 1013.2R 1/ 3
WILMETTE BUOY 67 180/ 6/ 10 1014.7R 1
CHICAGO BUOY 68 64 220/ 8/ 12 1011.9R 1
HARRISON CRIB 70 200/ 14/ 16 N/A
NORTHERLY ISL 69 180/ 8/ 10 N/A
CALUMET HARBOR 200/ 7/ 10 1013.0
MICHIGAN CITY 67 150/ 11/ 14 1011.8F
MICH CITY BUOY 64 62 180/ 10/ 12 N/A 1
ST. JOSEPH BUOY 65 63 180/ 8/ 10 1014.3S 1/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-301200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 66 58 75 SE8 29.85F TC 19
MACOMB* LGT RAIN 62 62 100 SE7 29.90S TC 17
ILZ028>032-037-038-041>044-048-051>054-059>061-301200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 62 58 86 CALM 29.95R TC 17
DECATUR CLOUDY 65 53 65 S7 29.93S TC 18
PEORIA LGT RAIN 61 59 93 CALM 29.93R TC 16
LACON* LGT RAIN 60 57 92 CALM 29.92S TC 15
SPRINGFIELD CLOUDY 68 52 56 S3 29.91R TC 20
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-301200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 64 52 64 S8 29.94S TC 18
MATTOON MOCLDY 64 53 67 S7 29.94R TC 18
ILZ079-100>102-301200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* MOCLDY 65 54 67 SE5 29.91R TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-301200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 60 58 94 CALM 29.97R TC 16
EFFINGHAM* PTCLDY 63 52 68 CALM 29.97R TC 17
MT. VERNON PTCLDY 64 53 67 CALM 29.95S TC 18
CENTRALIA* PTCLDY 67 52 57 S5 29.94S TC 20
SALEM* PTCLDY 67 54 63 MISG 29.95R TC 19
ILZ067-068-072-073-078-083-087-091-301200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 61 57 87 CALM 29.97R TC 16
FAIRFIELD* PTCLDY 60 54 80 CALM 29.95S HAZE TC 15
HARRISBURG* PTCLDY 58 56 91 CALM 29.97R TC 15
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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