801
ASUS43 KLOT 171110
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM 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.
ILZ001-002-007-009-015-016-024-171200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 63 62 97 W6 30.05R TC 17
STERLING* CLEAR 63 62 97 NW5 30.06R TC 17
SAVANNA* CLEAR 60 59 97 CALM 30.06R TC 16
ILZ003-004-008-010-011-017-018-171200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 62 60 93 NW5 30.05R TC 17
FREEPORT* CLEAR 62 60 95 NW5 30.07R TC 17
ROCHELLE* PTCLDY 62 59 93 NW3 30.04S TC 16
PERU* CLOUDY 64 64 100 NW5 30.04R TC 18
ILZ005-006-012>014-019>023-171200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 67 63 87 NW6 29.99R TC 19
CHICAGO-MIDWAY PTCLDY 67 63 87 W5 29.99R TC 19
AURORA PTCLDY 62 62 100 NW3 30.01R TC 17
JOLIET* PTCLDY 66 65 97 CALM 30.01R TC 19
WAUKEGAN PTCLDY 65 64 97 NW3 30.00R TC 18
DUPAGE AIRPORT CLOUDY 66 63 90 NW6 30.00R TC 19
WHEELING PTCLDY 67 65 93 N7 30.00S TC 19
ROMEOVILLE* CLEAR 66 66 100 W6 30.01R TC 19
LANSING* MOCLDY 66 62 86 W3 30.00R TC 19
NORTHERLY ISL* N/A 69 62 78 W6 N/A TC 21
LMZ740>746-171200-
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 73 74 10/ 14/ 17 1015.5 2/ 3
WAUKEGAN HARBOR 73 74 350/ 14/ 19 1016.1 2/ 4
WILMETTE BUOY 73 80/ 17/ 21 1018.1R 2/ 4
CHICAGO BUOY 71 73 1014.4 2/ 4
HARRISON CRIB 70 290/ 8/ 9 N/A
NORTHERLY ISL 70 280/ 3/ 8 N/A
CALUMET HARBOR 69 260/ 1/ 4 1015.3
MICHIGAN CITY 73 340/ 7/ 7 1013.4R
MICH CITY BUOY 73 74 340/ 6/ 8 N/A 3/ 5
ST. JOSEPH BUOY 73 74 50/ 10/ 10 1015.8R 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-171200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 66 66 100 NW3 30.06R TC 19
MACOMB* CLEAR 64 64 100 NW3 30.08S TC 18
ILZ028>032-037-038-041>044-048-051>054-059>061-171200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTCLDY 66 66 100 NW9 30.03S TC 19
DECATUR CLOUDY 71 67 87 N13 30.00S TC 22
PEORIA CLEAR 66 64 93 NW3 30.04R TC 19
LACON* CLEAR 64 61 88 N3 30.03S TC 18
LINCOLN* PTCLDY 69 69 100 CALM 30.02S TC 21
SPRINGFIELD PTCLDY 69 67 93 NW8 30.02S TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-171200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 70 69 97 NW6 29.99S TC 21
RANTOUL* MOCLDY 69 68 97 N8 29.99S TC 21
MATTOON CLOUDY 74 74 100 NW6 29.97S FOG TC 23
ILZ079-100>102-171200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY N/A N/A N/A NW3 30.03R
BELLEVILLE MOCLDY 75 74 97 NW7 29.98S TC 24
CAHOKIA* CLOUDY 75 72 90 NW13 30.01R TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 75 73 95 CALM 29.99R TC 24
EFFINGHAM* CLOUDY 73 73 100 W3 30.00S TC 23
MARION MOCLDY 72 71 98 CALM 29.99R TC 22
MT. VERNON MOCLDY 73 73 100 CALM 29.99S TC 23
CENTRALIA* CLOUDY 74 73 97 CALM 29.99S FOG TC 24
SALEM* FOG 75 75 100 MISG 29.99S VSB 1/2 TC 24
ILZ067-068-072-073-078-083-087-091-171200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 73 73 100 CALM 29.97R TC 23
FAIRFIELD* PTCLDY 72 72 99 CALM 29.98S TC 22
HARRISBURG* MOCLDY 73 73 100 CALM 29.98R TC 23
ROBINSON* CLOUDY 73 73 100 W1 29.96S FOG TC 23
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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