420
ASUS43 KLOT 181206
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT TUE AUG 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 CLOUDY 66 63 90 CALM 30.01F TC 19
6HR MIN TEMP: 62; 6HR MAX TEMP: 67;
STERLING* CLOUDY 64 64 100 CALM 30.04R TC 18
SAVANNA* CLOUDY 63 62 94 SE3 30.02S TC 17
ILZ003-004-008-010-011-017-018-181300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 63 61 93 SE3 30.02F TC 17
6HR MIN TEMP: 61; 6HR MAX TEMP: 64;
FREEPORT* MOCLDY 64 63 95 CALM 30.03S TC 18
ROCHELLE* MOCLDY 60 59 95 CALM 30.03R TC 16
DE KALB* MOCLDY 65 63 93 W5 30.04R TC 18
ILZ005-006-012>014-019>023-181300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 67 62 84 SW3 30.01S TC 19
6HR MIN TEMP: 66; 6HR MAX TEMP: 69;
CHICAGO-MIDWAY MOCLDY 67 63 87 W6 30.02R TC 19
6HR MIN TEMP: 66; 6HR MAX TEMP: 68;
AURORA MOCLDY 64 63 96 SW3 30.02F TC 18
6HR MIN TEMP: 60; 6HR MAX TEMP: 65;
JOLIET* MOCLDY 66 65 99 CALM 30.03S TC 19
WAUKEGAN PTCLDY 64 62 93 SW7 30.00S TC 18
6HR MIN TEMP: 62; 6HR MAX TEMP: 65;
DUPAGE AIRPORT MOCLDY 65 63 93 S3 30.02S TC 18
6HR MIN TEMP: 62; 6HR MAX TEMP: 66;
KANKAKEE* PTCLDY 64 62 94 CALM 30.06R TC 18
WHEELING PTCLDY 67 62 84 W3 30.03R TC 19
6HR MIN TEMP: 63; 6HR MAX TEMP: 68;
LANSING* MOCLDY 62 61 95 CALM 30.04R TC 17
NORTHERLY ISL* N/A 70 61 73 W6 N/A TC 21
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 69 74 240/ 12/ 14 1015.3 1
WAUKEGAN HARBOR 69 74 260/ 10/ 14 1016.3 1
WILMETTE BUOY 70 270/ 10/ 14 1018.9R 1/ 2
CHICAGO BUOY 72 73 1015.5 1
HARRISON CRIB 72 260/ 14/ 15 N/A
NORTHERLY ISL 68 260/ 6/ 7 N/A
CALUMET HARBOR 67 220/ 3/ 5 1016.6
MICHIGAN CITY 67 190/ 7/ 8 1015.3F
MICH CITY BUOY 71 74 240/ 12/ 14 N/A 2/ 3
ST. JOSEPH BUOY 73 74 240/ 12/ 14 1017.2R 2/ 3
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 MOCLDY 65 64 97 S6 30.04F TC 18
GALESBURG* MOCLDY 64 64 100 S3 30.05S TC 18
MACOMB* MOCLDY 64 64 100 CALM 30.06F TC 18
JACKSONVILLE* PTCLDY 64 64 100 CALM 30.06F TC 18
ILZ028>032-037-038-041>044-048-051>054-059>061-181300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 64 64 100 CALM 30.06S TC 18
BLOOMINGTON PTCLDY 65 65 100 SW5 30.07S TC 18
DECATUR PTCLDY 64 61 90 CALM 30.07S TC 18
PEORIA MOCLDY 65 64 97 S3 30.04F TC 18
6HR MIN TEMP: 65; 6HR MAX TEMP: 68;
LACON* MOCLDY 65 63 94 CALM 30.03F TC 18
LINCOLN* PTCLDY 63 63 100 CALM 30.06S TC 17
SPRINGFIELD PTCLDY 64 63 96 CALM 30.07R TC 18
6HR MIN TEMP: 62; 6HR MAX TEMP: 65;
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 PTCLDY 62 61 96 W3 30.07R TC 17
RANTOUL* MOCLDY 62 62 99 W3 30.07S TC 17
MATTOON PTCLDY 64 62 93 W3 30.07R TC 18
PARIS* PTCLDY 62 61 98 CALM 30.08R TC 16
ILZ079-100>102-181300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 64 64 100 CALM 30.06F TC 18
BELLEVILLE CLEAR 66 65 97 CALM 30.04S TC 19
CAHOKIA* CLEAR 65 65 100 CALM 30.06S FOG TC 18
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 PTCLDY 64 64 100 CALM 30.07 TC 18
CAIRO* CLEAR 65 65 100 CALM 30.09R TC 18
EFFINGHAM* PTCLDY 63 63 100 CALM 30.09R TC 17
MT. VERNON CLEAR 63 62 97 CALM 30.08R TC 17
CENTRALIA* PTCLDY 64 63 97 CALM 30.07S FOG TC 18
SALEM* FOG 65 65 100 MISG 30.07R VSB 1/2 TC 18
METROPOLIS* CLEAR 63 63 97 CALM 30.09R TC 17
ILZ067-068-072-073-078-083-087-091-181300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 66 64 93 CALM 30.06R TC 19
FLORA* CLEAR 64 N/A N/A CALM 30.07S TC 18
FAIRFIELD* CLEAR 63 62 99 CALM 30.07S FOG TC 17
HARRISBURG* CLEAR 64 64 100 CALM 30.08R TC 18
ROBINSON* CLEAR 63 63 100 VRB1 30.06R FOG TC 17
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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