488
ASUS43 KLOT 181510
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM 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.
ILZ001-002-007-009-015-016-024-181600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 53 38 56 S16G24 30.42S TC 12
STERLING* SUNNY 53 37 54 SW8 30.45S TC 12
SAVANNA* SUNNY 51 40 65 S10 30.42S TC 11
ILZ003-004-008-010-011-017-018-181600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD SUNNY 51 38 60 S16G24 30.45S TC 11
FREEPORT* SUNNY 52 39 60 SW20 30.43F TC 11
ROCHELLE* SUNNY 51 37 57 SW13G22 30.45S TC 11
DE KALB* SUNNY 49 38 64 SW15 30.46S TC 10
ILZ005-006-012>014-019>023-181600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE SUNNY 52 33 48 SW10G21 30.45S TC 11
CHICAGO-MIDWAY SUNNY 52 31 44 SW14 30.47F TC 11
AURORA SUNNY 50 36 58 S12 30.47S TC 10
JOLIET* SUNNY 53 36 52 S9 30.49S TC 12
WAUKEGAN SUNNY 53 36 52 SW16 30.42S TC 12
DUPAGE AIRPORT SUNNY 51 35 54 SW15 30.46S TC 11
KANKAKEE* SUNNY 52 35 52 SW12 30.52S TC 11
WHEELING MOSUNNY 52 34 50 SW14G23 30.46F TC 11
NORTHERLY ISL* N/A 52 29 41 SW9 N/A TC 11
LMZ740>746-181600-
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 53 57 1027.3
WAUKEGAN HARBOR 53 55 220/ 17/ 21 1028.4 2/ 3
WILMETTE BUOY 53 180/ 17/ 23 1035.8R 2/ 4
CHICAGO BUOY 53 58 230/ 16/ 21 1030.3 1/ 3
HARRISON CRIB 51 210/ 17/ 19 N/A
NORTHERLY ISL 49 200/ 7/ 12 N/A
CALUMET HARBOR 50 200/ 9/ 16 1032.0
MICHIGAN CITY 51 190/ 10/ 12 1032.4F
MICH CITY BUOY 52 59 210/ 16/ 19 N/A 2/ 3
ST. JOSEPH BUOY 52 58 200/ 14/ 19 1033.0F 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-181600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 52 38 58 S14 30.45F TC 11
GALESBURG* SUNNY 50 41 71 S12G17 30.46S TC 10
MACOMB* SUNNY 53 40 61 S12 30.48S TC 12
JACKSONVILLE* SUNNY 53 37 56 S9 30.49F TC 11
PITTSFIELD* SUNNY 53 40 61 S7 30.49S TC 12
ILZ028>032-037-038-041>044-048-051>054-059>061-181600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 53 37 54 S9 30.50S TC 12
BLOOMINGTON SUNNY 52 36 54 S14 30.50F TC 11
DECATUR SUNNY 53 39 59 S12 30.52S TC 12
PEORIA SUNNY 50 36 58 S10 30.48F TC 10
LACON* SUNNY 51 35 55 SW12G17 30.47S TC 10
SPRINGFIELD SUNNY 53 36 52 S10 30.50F TC 12
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 51 38 60 S12 30.53R TC 11
RANTOUL* SUNNY 52 37 56 S10 30.53S TC 11
MATTOON SUNNY 51 38 60 S12G21 30.53S TC 11
PARIS* SUNNY 53 37 55 S14 30.55S TC 12
ILZ079-100>102-181600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 52 39 62 SE9 30.52S TC 11
BELLEVILLE SUNNY 52 43 72 S7 30.51S TC 11
CAHOKIA* SUNNY 53 42 66 SE6 30.51S TC 12
SPARTA* SUNNY 52 40 62 S8 30.54S TC 11
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 51 41 68 S5 30.53S TC 11
CAIRO* SUNNY 54 44 67 E3 30.53S TC 12
EFFINGHAM* SUNNY 52 37 56 SE7 30.56S TC 11
MT. VERNON SUNNY 54 40 59 SE7 30.54S TC 12
CENTRALIA* SUNNY 55 38 53 SE10 30.54S TC 13
SALEM* SUNNY 55 42 63 MISG 30.54R TC 13
METROPOLIS* SUNNY 54 40 58 SE5 30.53S TC 12
ILZ067-068-072-073-078-083-087-091-181600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE N/A N/A N/A N/A MISG 30.55S
FLORA* SUNNY 52 41 66 S7 30.55S TC 11
FAIRFIELD* SUNNY 53 38 56 S9 30.55S TC 12
HARRISBURG* SUNNY 53 42 67 SE8 30.55S TC 12
ROBINSON* SUNNY 54 41 62 S8 30.55S TC 12
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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