607
ASUS43 KLOT 181201
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 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.
ILZ001-002-007-009-015-016-024-181300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 41 34 76 S7 30.42S TC 5
6HR MIN TEMP: 40; 6HR MAX TEMP: 44;
STERLING* CLEAR 42 34 73 VRB3 30.45R TC 6
SAVANNA* CLEAR 38 34 85 SE9 30.42S WCI 32 TC 3
ILZ003-004-008-010-011-017-018-181300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 36 33 89 CALM 30.45R TC 2
6HR MIN TEMP: 36; 6HR MAX TEMP: 41;
FREEPORT* CLEAR 41 37 83 S12 30.43S TC 5
ILZ005-006-012>014-019>023-181300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 43 33 68 S6 30.45R TC 6
6HR MIN TEMP: 43; 6HR MAX TEMP: 45;
CHICAGO-MIDWAY PTCLDY 42 30 62 S12G22 30.47R TC 6
6HR MIN TEMP: 42; 6HR MAX TEMP: 46;
AURORA CLEAR 34 34 100 CALM 30.46R TC 1
6HR MIN TEMP: 33; 6HR MAX TEMP: 42;
WAUKEGAN CLEAR 39 35 86 SW7 30.43R WCI 34 TC 4
6HR MIN TEMP: 39; 6HR MAX TEMP: 44;
DUPAGE AIRPORT CLEAR 38 33 82 SW6 30.46R WCI 33 TC 3
6HR MIN TEMP: 38; 6HR MAX TEMP: 42;
WHEELING PTCLDY 44 34 67 SW7 30.46R TC 7
6HR MIN TEMP: 43; 6HR MAX TEMP: 46;
NORTHERLY ISL* N/A 45 29 53 SW7 N/A TC 7
LMZ740>746-181300-
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 47 57 1027.3S
WAUKEGAN HARBOR 47 56 210/ 14/ 17 1028.4S 2/ 3
WILMETTE BUOY 49 170/ 17/ 21 1030.5R 2/ 4
CHICAGO BUOY 50 58 210/ 16/ 19 1030.1R 1/ 2
HARRISON CRIB 49 210/ 15/ 18 N/A
NORTHERLY ISL 45 200/ 5/ 9 N/A
CALUMET HARBOR 45 190/ 5/ 8 1031.5
MICHIGAN CITY 43 180/ 9/ 12 1032.3R
MICH CITY BUOY 48 60 200/ 14/ 17 N/A 1/ 3
ST. JOSEPH BUOY 49 59 190/ 12/ 16 1032.6R 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-181300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 42 35 76 S6 30.45R TC 6
ILZ028>032-037-038-041>044-048-051>054-059>061-181300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 37 32 82 S8 30.49R WCI 31 TC 3
DECATUR CLEAR 33 31 92 CALM 30.50S TC 1
PEORIA CLEAR 39 35 86 SW3 30.47S TC 4
6HR MIN TEMP: 38; 6HR MAX TEMP: 41;
SPRINGFIELD CLEAR 40 33 76 S8 30.48S TC 4
6HR MIN TEMP: 38; 6HR MAX TEMP: 41;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 36 30 79 S7 30.50R WCI 30 TC 2
MATTOON CLEAR 36 33 89 S6 30.49S WCI 31 TC 2
ILZ079-100>102-181300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 37 36 93 CALM 30.49S TC 3
CAHOKIA* CLEAR 36 35 96 CALM 30.49R TC 2
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 34 34 100 CALM 30.50R TC 1
6HR MIN TEMP: 34; 6HR MAX TEMP: 39;
EFFINGHAM* CLEAR 35 34 95 CALM 30.53R TC 2
MT. VERNON CLEAR 32 32 100 CALM 30.52R TC 0
ILZ067-068-072-073-078-083-087-091-181300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE N/A N/A N/A N/A MISG 30.52R
FAIRFIELD* CLEAR 38 35 88 CALM 30.51S TC 3
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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