492
ASUS43 KLOT 180610
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 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.
ILZ001-002-007-009-015-016-024-180700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 43 32 65 S9 30.40F TC 6
6HR MIN TEMP: 37; 6HR MAX TEMP: 46;
STERLING* CLEAR 43 33 68 CALM 30.42F TC 6
SAVANNA* CLEAR 40 33 75 SE7 30.40S TC 4
ILZ003-004-008-010-011-017-018-180700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 40 34 79 S5 30.42S TC 4
6HR MIN TEMP: 39; 6HR MAX TEMP: 48;
FREEPORT* CLEAR 43 34 70 S12 30.40F TC 6
ROCHELLE* CLEAR 36 35 95 S7 30.42S WCI 31 TC 2
DE KALB* CLEAR 42 36 79 S9 30.42S TC 6
ILZ005-006-012>014-019>023-180700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 45 36 70 S10 30.41F TC 7
6HR MIN TEMP: 45; 6HR MAX TEMP: 52;
CHICAGO-MIDWAY CLEAR 46 32 58 S8 30.43F TC 8
6HR MIN TEMP: 46; 6HR MAX TEMP: 53;
AURORA CLEAR 42 36 79 S6 30.42F TC 6
6HR MIN TEMP: 41; 6HR MAX TEMP: 48;
JOLIET* CLEAR 42 38 88 CALM 30.44F TC 5
WAUKEGAN CLEAR 44 36 73 SW9 30.39S TC 7
6HR MIN TEMP: 42; 6HR MAX TEMP: 49;
DUPAGE AIRPORT CLEAR 42 35 76 S6 30.42S TC 6
6HR MIN TEMP: 42; 6HR MAX TEMP: 49;
KANKAKEE* CLEAR 40 30 69 S3 30.47S TC 4
WHEELING CLEAR 46 36 68 SW7 30.43S TC 8
6HR MIN TEMP: 44; 6HR MAX TEMP: 51;
ROMEOVILLE* CLEAR 41 37 87 S8 30.44F TC 5
NORTHERLY ISL* N/A 48 30 50 S8 N/A TC 9
LMZ740>746-180700-
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 49 56 1023.0
WAUKEGAN HARBOR 49 57 210/ 14/ 17 1027.5 1/ 3
WILMETTE BUOY 52 170/ 16/ 19 1029.0R 2/ 3
CHICAGO BUOY 53 59 220/ 16/ 21 1028.9 1/ 2
HARRISON CRIB 52 210/ 18/ 19 N/A
NORTHERLY ISL 48 210/ 8/ 10 N/A
CALUMET HARBOR 47 170/ 5/ 9 1030.5
MICHIGAN CITY 48 180/ 12/ 15 1030.5F
MICH CITY BUOY 51 60 200/ 14/ 17 N/A 2/ 3
ST. JOSEPH BUOY 53 59 200/ 16/ 19 1031.4F 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-180700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 43 33 68 S6 30.42F TC 6
GALESBURG* CLEAR 40 35 84 S5 30.44S TC 4
MACOMB* CLEAR 40 34 81 S5 30.46S TC 4
JACKSONVILLE* CLEAR 40 34 79 SE6 30.45F TC 5
PITTSFIELD* CLEAR 41 35 77 S3 30.45F TC 5
ILZ028>032-037-038-041>044-048-051>054-059>061-180700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 37 35 94 SE6 30.46S WCI 32 TC 3
BLOOMINGTON CLEAR 39 34 82 S6 30.47S WCI 35 TC 4
DECATUR CLEAR 37 35 92 CALM 30.47F TC 3
PEORIA CLEAR 42 36 79 CALM 30.45S TC 6
6HR MIN TEMP: 41; 6HR MAX TEMP: 49;
LACON* CLEAR 42 33 72 S5 30.44S TC 6
SPRINGFIELD CLEAR 39 37 92 SE3 30.46F TC 4
6HR MIN TEMP: 38; 6HR MAX TEMP: 48;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-180700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 39 29 67 S3 30.47F TC 4
RANTOUL* CLEAR 37 33 87 CALM 30.48S TC 3
MATTOON CLEAR 41 32 70 S3 30.47F TC 5
PARIS* CLEAR 35 31 84 CALM 30.49S TC 2
ILZ079-100>102-180700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 39 38 93 CALM 30.47S TC 4
BELLEVILLE CLEAR 41 41 98 CALM 30.46S TC 5
CAHOKIA* CLEAR 39 39 100 CALM 30.46F TC 4
SPARTA* CLEAR 40 40 98 CALM 30.48S TC 5
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 38 37 97 CALM 30.48S TC 3
6HR MIN TEMP: 38; 6HR MAX TEMP: 50;
CAIRO* CLEAR 40 40 99 CALM 30.48S TC 5
EFFINGHAM* CLEAR 38 37 95 CALM 30.50S TC 3
MARION CLEAR 39 39 100 SW1 30.48S TC 4
MT. VERNON CLEAR 36 36 100 CALM 30.49S TC 2
CENTRALIA* N/A 37 37 97 CALM 30.48S FOG TC 3
SALEM* CLEAR 42 40 90 MISG 30.48S TC 6
METROPOLIS* CLEAR 39 38 96 CALM 30.48S TC 4
ILZ067-068-072-073-078-083-087-091-180700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE N/A N/A N/A N/A MISG 30.49S
FLORA* CLEAR 37 N/A N/A CALM 30.49S TC 3
FAIRFIELD* CLEAR 39 35 85 CALM 30.49S TC 4
HARRISBURG* CLEAR 38 37 99 CALM 30.49F FOG TC 3
ROBINSON* CLEAR 36 36 100 E1 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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