573
ASUS43 KLOT 182001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 PM CDT SUN OCT 18 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.
ILZ001-002-007-009-015-016-024-182100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 66 42 41 S12 30.32F TC 19
STERLING* SUNNY 66 37 34 VRB5 30.34F TC 19
SAVANNA* SUNNY 65 41 40 S14 30.32F TC 19
ILZ003-004-008-010-011-017-018-182100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD SUNNY 64 38 38 S17G24 30.34F TC 18
FREEPORT* SUNNY 64 40 40 S16 30.34F TC 18
DE KALB* SUNNY 61 38 42 S15 30.36F TC 16
ILZ005-006-012>014-019>023-182100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE SUNNY 62 35 36 SW16G23 30.36F TC 17
CHICAGO-MIDWAY SUNNY 63 34 33 S14G26 30.37F TC 17
AURORA SUNNY 63 36 36 S14 30.36F TC 17
JOLIET* SUNNY 65 35 33 SW10 30.39F TC 18
WAUKEGAN SUNNY 62 36 37 S17 30.33F TC 17
DUPAGE AIRPORT SUNNY 61 37 41 S12 30.36F TC 16
KANKAKEE* SUNNY 64 32 29 SW13 30.41F TC 18
WHEELING SUNNY 63 36 36 SW13G26 30.37F TC 17
LANSING* SUNNY 63 32 31 S13G18 30.40F TC 17
NORTHERLY ISL* N/A 63 30 29 S15 N/A TC 17
LMZ740>746-182100-
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 60 56 1024.7F
WAUKEGAN HARBOR 59 55 200/ 16/ 19 1026.0F 2/ 4
WILMETTE BUOY 60 180/ 16/ 21 1035.9F 2/ 3
CHICAGO BUOY 61 58 210/ 14/ 19 1027.1F 2/ 3
HARRISON CRIB 61 200/ 19/ 23 N/A
NORTHERLY ISL 62 180/ 10/ 16 N/A
CALUMET HARBOR 61 180/ 12/ 17 1028.8F
MICHIGAN CITY 60 200/ 13/ 19 1028.6F
MICH CITY BUOY 60 60 200/ 12/ 16 N/A 1/ 4
ST. JOSEPH BUOY 59 59 200/ 10/ 14 1030.1F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-182100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 65 39 38 S10 30.35F TC 18
GALESBURG* SUNNY 64 43 46 S8G17 30.36F TC 18
MACOMB* SUNNY 65 38 36 S10G16 30.37F TC 19
JACKSONVILLE* SUNNY 64 37 37 S7 30.38F TC 18
ILZ028>032-037-038-041>044-048-051>054-059>061-182100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON SUNNY 63 37 38 S14G20 30.40F TC 17
DECATUR SUNNY 63 37 38 S10 30.41F TC 17
PEORIA SUNNY 63 37 38 S12 30.37F TC 17
LACON* SUNNY 62 36 37 SW6 30.36F TC 17
SPRINGFIELD SUNNY 64 34 32 S9G17 30.39F TC 18
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-182100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 63 34 33 S7 30.42F TC 17
MATTOON SUNNY 64 36 35 S10G17 30.41F TC 18
ILZ079-100>102-182100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* SUNNY 66 38 35 SE7 30.39F TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 66 37 34 E7 30.40F TC 19
CAIRO* SUNNY 67 40 37 CALM 30.40F TC 20
EFFINGHAM* SUNNY 64 32 30 SE7 30.43F TC 18
MT. VERNON SUNNY 66 37 34 CALM 30.41F TC 19
CENTRALIA* SUNNY 65 35 33 S7 30.41F TC 19
SALEM* SUNNY 66 38 36 MISG 30.41F TC 19
ILZ067-068-072-073-078-083-087-091-182100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE N/A N/A N/A N/A MISG 30.43F
FLORA* SUNNY 64 39 39 SE6 30.42F TC 18
FAIRFIELD* SUNNY 64 32 31 SE5 30.42F TC 18
HARRISBURG* SUNNY 65 38 36 NE5 30.42F HAZE TC 19
ROBINSON* SUNNY 64 37 36 S8 30.43F TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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