087
ASUS43 KLOT 180512
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 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.
ILZ001-002-007-009-015-016-024-180600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 42 33 70 S7 30.41F TC 6
STERLING* CLEAR 44 33 65 CALM 30.43S TC 7
SAVANNA* CLEAR 41 32 71 SE8 30.40F TC 5
ILZ003-004-008-010-011-017-018-180600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 42 35 76 S5 30.42F TC 6
FREEPORT* CLEAR 40 34 80 S7 30.41F TC 4
ROCHELLE* CLEAR 38 35 90 S5 30.42F WCI 34 TC 3
DE KALB* CLEAR 40 36 85 S7 30.43S TC 5
ILZ005-006-012>014-019>023-180600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 45 36 70 S10 30.42F TC 7
CHICAGO-MIDWAY CLEAR 47 33 58 S7 30.44F TC 8
AURORA CLEAR 43 36 76 S6 30.43S TC 6
JOLIET* CLEAR 40 40 99 CALM 30.45S TC 5
WAUKEGAN CLEAR 42 36 79 SW8 30.39F TC 6
DUPAGE AIRPORT CLEAR 43 35 73 S7 30.42F TC 6
KANKAKEE* CLEAR 40 30 67 S5 30.47F TC 5
WHEELING PTCLDY 45 37 73 S7 30.43F TC 7
ROMEOVILLE* CLEAR 41 39 93 S7 30.45S TC 5
NORTHERLY ISL* N/A 49 31 50 S9 N/A TC 9
LMZ740>746-180600-
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 50 55 1022.9
WAUKEGAN HARBOR 50 57 210/ 14/ 17 1027.5 1/ 3
WILMETTE BUOY 52 170/ 16/ 23 1028.8S 1/ 3
CHICAGO BUOY 53 59 220/ 14/ 19 1029.0 1/ 3
HARRISON CRIB 53 210/ 18/ 19 N/A
NORTHERLY ISL 49 180/ 8/ 9 N/A
CALUMET HARBOR 48 200/ 6/ 7 1030.9
MICHIGAN CITY 48 180/ 12/ 15 1031.0S
MICH CITY BUOY 51 60 200/ 16/ 19 N/A 1/ 3
ST. JOSEPH BUOY 53 59 200/ 14/ 17 1031.5F 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-180600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 45 32 60 S7 30.43F TC 7
GALESBURG* CLEAR 40 35 83 S3 30.45R TC 5
MACOMB* CLEAR 40 34 77 S7 30.46S TC 5
JACKSONVILLE* CLEAR 43 35 74 SE5 30.46S TC 6
PITTSFIELD* CLEAR 41 35 81 CALM 30.46S TC 5
ILZ028>032-037-038-041>044-048-051>054-059>061-180600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 36 34 93 SE3 30.46F TC 2
BLOOMINGTON CLEAR 41 35 79 S6 30.47F TC 5
DECATUR CLEAR 39 36 89 CALM 30.48S TC 4
PEORIA CLEAR 43 35 73 S3 30.45F TC 6
LACON* CLEAR 43 34 70 S5 30.44F TC 6
SPRINGFIELD CLEAR 39 38 96 CALM 30.47S TC 4
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-180600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 38 30 73 S6 30.48S WCI 33 TC 3
RANTOUL* CLEAR 38 32 78 CALM 30.48S TC 4
MATTOON CLEAR 40 35 83 S5 30.48S TC 4
PARIS* CLEAR 35 32 92 SE3 30.49F TC 1
ILZ079-100>102-180600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 40 38 93 CALM 30.47F TC 5
BELLEVILLE CLEAR 43 42 98 CALM 30.46F TC 6
CAHOKIA* CLEAR 39 38 96 CALM 30.47S TC 4
SPARTA* CLEAR 42 41 98 CALM 30.49S TC 6
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 40 39 97 CALM 30.48F TC 4
CAIRO* CLEAR 41 40 95 CALM 30.48F TC 5
EFFINGHAM* CLEAR 38 37 94 CALM 30.51S TC 4
MARION CLEAR 41 37 87 CALM 30.48F TC 5
MT. VERNON CLEAR 37 37 100 CALM 30.49S TC 3
CENTRALIA* N/A 39 38 97 CALM 30.49S FOG TC 4
SALEM* CLEAR 40 39 95 MISG 30.48F TC 5
METROPOLIS* CLEAR 38 37 96 CALM 30.48F TC 4
ILZ067-068-072-073-078-083-087-091-180600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 40 37 89 CALM 30.49F TC 4
FLORA* CLEAR 41 39 93 CALM 30.49F TC 5
FAIRFIELD* CLEAR 41 35 81 CALM 30.49S TC 5
HARRISBURG* CLEAR 38 37 97 CALM 30.50R TC 4
ROBINSON* CLEAR 36 36 100 CALM 30.49S TC 2
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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