217
ASUS43 KLOT 171203
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 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.
ILZ001-002-007-009-015-016-024-171300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 64 63 96 W6 30.06R TC 18
6HR MIN TEMP: 62; 6HR MAX TEMP: 67;
STERLING* CLEAR 65 63 93 N5 30.07R TC 18
SAVANNA* PTCLDY 61 60 97 CALM 30.07S FOG TC 16
ILZ003-004-008-010-011-017-018-171300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 64 61 90 NW5 30.06R TC 18
6HR MIN TEMP: 62; 6HR MAX TEMP: 67;
FREEPORT* CLEAR 62 61 95 CALM 30.09R TC 17
ILZ005-006-012>014-019>023-171300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 69 65 86 N9 30.00R TC 21
6HR MIN TEMP: 67; 6HR MAX TEMP: 70;
CHICAGO-MIDWAY PTCLDY 67 63 87 NW7 30.00R TC 19
6HR MIN TEMP: 67; 6HR MAX TEMP: 73;
AURORA PTCLDY 63 62 97 NW5 30.03R TC 17
6HR MIN TEMP: 62; 6HR MAX TEMP: 66;
JOLIET* CLEAR 66 65 97 NW3 30.02R TC 19
WAUKEGAN MOCLDY 67 65 93 N3 30.01R TC 19
6HR MIN TEMP: 65; 6HR MAX TEMP: 68;
DUPAGE AIRPORT CLOUDY 67 63 87 NW5 30.02R TC 19
6HR MIN TEMP: 65; 6HR MAX TEMP: 68;
WHEELING PTCLDY 67 65 93 N6 30.02R TC 19
6HR MIN TEMP: 66; 6HR MAX TEMP: 70;
LANSING* PTCLDY 66 62 87 NW3 30.00S TC 19
NORTHERLY ISL* N/A 70 64 81 W6 N/A TC 21
LMZ740>746-171300-
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 74 360/ 14/ 17 1015.8R 2/ 4
WAUKEGAN HARBOR 73 74 350/ 14/ 17 1016.7R 2/ 4
WILMETTE BUOY 73 80/ 14/ 19 1018.7R 3/ 4
CHICAGO BUOY 71 73 1014.5R 2/ 4
HARRISON CRIB 70 310/ 9/ 10 N/A
NORTHERLY ISL 69 260/ 4/ 7 N/A
CALUMET HARBOR 68 280/ 4/ 7 1015.5S
MICHIGAN CITY 73 360/ 9/ 10 1013.5R
MICH CITY BUOY 73 74 360/ 6/ 8 N/A 2/ 5
ST. JOSEPH BUOY 73 74 40/ 8/ 12 1016.1R 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-171300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 66 65 96 NW5 30.08R TC 19
MACOMB* CLEAR 66 66 100 NW5 30.09R TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-171300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 66 65 96 NW10 30.05R TC 19
DECATUR PTCLDY 70 66 87 N13 30.02R TC 21
PEORIA CLEAR 66 64 93 N5 30.05R TC 19
6HR MIN TEMP: 65; 6HR MAX TEMP: 72;
SPRINGFIELD CLEAR 68 66 93 NW7 30.04R TC 20
6HR MIN TEMP: 68; 6HR MAX TEMP: 75;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-171300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 69 68 96 NW7 30.01R TC 21
MATTOON MOCLDY 72 70 93 N7 29.99R TC 22
ILZ079-100>102-171300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE CLOUDY 75 74 97 NW7 30.00R TC 24
CAHOKIA* MOCLDY 74 72 93 NW10 30.02S TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 73 73 100 NW7 30.00 TC 23
MT. VERNON CLOUDY 73 73 100 CALM 30.01R TC 23
CENTRALIA* CLOUDY 73 73 98 CALM 30.01R FOG TC 23
SALEM* N/A 74 74 100 MISG 30.01R TC 24
ILZ067-068-072-073-078-083-087-091-171300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 74 73 97 W5 29.98R TC 23
FAIRFIELD* CLOUDY 72 72 98 SW3 29.99R FOG TC 22
HARRISBURG* PTCLDY 73 73 100 CALM 30.00R TC 23
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page