442
ASUS43 KLOT 180408
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT MON AUG 17 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.
ILZ001-002-007-009-015-016-024-180500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 65 63 93 CALM 30.02S TC 18
STERLING* CLEAR 67 66 97 CALM 30.03S TC 19
SAVANNA* CLEAR 65 62 92 SE5 30.02F TC 18
ILZ003-004-008-010-011-017-018-180500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 65 63 93 SE5 30.02S TC 18
FREEPORT* CLEAR 65 64 96 SW5 30.03F TC 19
ROCHELLE* CLEAR 63 61 94 S3 30.03F TC 17
DE KALB* CLEAR 67 62 84 SW5 30.04S TC 20
PERU* CLEAR 66 64 94 SW5 30.04R TC 19
ILZ005-006-012>014-019>023-180500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 70 58 65 S6 30.01R TC 21
CHICAGO-MIDWAY CLEAR 70 58 65 S6 30.02R TC 21
AURORA CLEAR 65 64 97 CALM 30.03R TC 18
JOLIET* CLEAR 66 66 100 CALM 30.04R TC 19
WAUKEGAN CLEAR 65 61 87 SW6 30.00R TC 18
DUPAGE AIRPORT CLEAR 67 62 84 SE5 30.02R TC 19
KANKAKEE* PTCLDY 66 65 95 S3 30.05R TC 19
WHEELING PTCLDY 69 58 67 CALM 30.03R TC 21
LANSING* CLEAR 64 62 94 CALM 30.03S TC 18
NORTHERLY ISL* N/A 72 57 59 S5 N/A TC 22
LMZ740>746-180500-
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 72 74 180/ 8/ 10 1015.7 1/ 5
WAUKEGAN HARBOR 73 74 220/ 8/ 10 1016.6 1/ 5
WILMETTE BUOY 74 230/ 8/ 12 1019.1R 1/ 5
CHICAGO BUOY 74 74 1015.4 1/ 4
HARRISON CRIB 74 190/ 8/ 9 N/A
NORTHERLY ISL 71 200/ 3/ 5 N/A
CALUMET HARBOR 71 190/ 2/ 3 1016.6
MICHIGAN CITY 69 190/ 4/ 5 1015.1R
MICH CITY BUOY 72 74 220/ 6/ 10 N/A 2/ 4
ST. JOSEPH BUOY 73 75 260/ 2/ 4 1016.9R 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-180500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 69 65 86 CALM 30.06S TC 21
GALESBURG* CLEAR 65 65 100 CALM 30.05S TC 18
MACOMB* CLEAR 64 64 100 CALM 30.06F TC 18
JACKSONVILLE* PTCLDY 66 66 100 CALM 30.07R TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-180500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 65 65 100 CALM 30.05R TC 18
BLOOMINGTON PTCLDY 67 63 87 CALM 30.07R TC 19
DECATUR PTCLDY 67 63 87 CALM 30.06S TC 19
PEORIA CLEAR 68 66 93 CALM 30.04S TC 20
LACON* CLEAR 65 63 91 CALM 30.03S TC 19
LINCOLN* PTCLDY 68 68 100 CALM 30.06R TC 20
SPRINGFIELD PTCLDY 67 66 97 CALM 30.06R TC 19
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-180500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 67 63 87 W5 30.05S TC 19
RANTOUL* PTCLDY 67 64 91 CALM 30.06R TC 19
MATTOON PTCLDY 67 63 87 W5 30.04F TC 19
PARIS* MOCLDY 68 67 98 CALM 30.05S TC 20
ILZ079-100>102-180500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY N/A N/A N/A CALM 30.07R
BELLEVILLE PTCLDY 69 68 97 S3 30.04S TC 21
CAHOKIA* PTCLDY 70 67 90 CALM 30.06S TC 21
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 70 69 98 CALM 30.07S TC 21
EFFINGHAM* MOCLDY 65 65 100 CALM 30.07S TC 19
MARION PTCLDY 67 66 98 CALM 30.08R TC 19
MT. VERNON PTCLDY 67 67 100 CALM 30.07S TC 19
CENTRALIA* MOCLDY 69 68 97 CALM 30.07S TC 20
SALEM* N/A 69 68 97 MISG 30.06S TC 21
METROPOLIS* CLEAR 68 68 98 CALM 30.07S TC 20
ILZ067-068-072-073-078-083-087-091-180500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 70 65 84 NW6 30.04R TC 21
FLORA* PTCLDY 70 64 83 CALM 30.06S TC 21
FAIRFIELD* PTCLDY 66 64 95 CALM 30.06R TC 19
HARRISBURG* PTCLDY 68 67 98 CALM 30.07R TC 20
ROBINSON* PTCLDY 68 66 94 NW5 30.04R TC 20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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