050
ASUS43 KLOT 200603
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 AM CDT THU AUG 20 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.
ILZ001-002-007-009-015-016-024-200700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 67 65 93 SE3 29.95S TC 19
6HR MIN TEMP: 67; 6HR MAX TEMP: 75;
STERLING* MOCLDY 67 67 100 NE7 29.99S TC 19
SAVANNA* PTCLDY 67 63 89 CALM 29.99R TC 19
ILZ003-004-008-010-011-017-018-200700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 66 59 78 CALM 30.01R TC 19
6HR MIN TEMP: 66; 6HR MAX TEMP: 77;
FREEPORT* PTCLDY 63 62 95 E3 30.02S TC 17
ILZ005-006-012>014-019>023-200700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 70 56 61 N7 29.97S TC 21
6HR MIN TEMP: 69; 6HR MAX TEMP: 73;
CHICAGO-MIDWAY CLOUDY 71 54 54 NE6 29.97S TC 22
6HR MIN TEMP: 71; 6HR MAX TEMP: 75;
AURORA MOCLDY 65 61 87 NE6 29.97S TC 18
6HR MIN TEMP: 65; 6HR MAX TEMP: 75;
JOLIET* MOCLDY 71 61 70 N6 29.97S TC 22
WAUKEGAN MOCLDY 61 59 93 N5 29.98F TC 16
6HR MIN TEMP: 61; 6HR MAX TEMP: 71;
DUPAGE AIRPORT MOCLDY 65 60 84 N7 29.98S TC 18
6HR MIN TEMP: 64; 6HR MAX TEMP: 73;
WHEELING CLOUDY 68 57 68 CALM 29.99F TC 20
6HR MIN TEMP: 67; 6HR MAX TEMP: 73;
LANSING* MOCLDY 71 54 54 NE6 29.97S TC 22
NORTHERLY ISL* N/A 72 57 59 N8 N/A TC 22
LMZ740>746-200700-
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 20/ 8/ 12 1015.2S 2/ 4
WAUKEGAN HARBOR 73 74 10/ 10/ 12 1016.0R 2/ 4
WILMETTE BUOY 73 90/ 12/ 16 1018.2R 2/ 4
CHICAGO BUOY 74 73 1013.8R 3/ 4
NORTHERLY ISL 72 30/ 12/ 14 N/A
CALUMET HARBOR 20/ 11/ 14 1014.9
MICH CITY BUOY 73 74 40/ 14/ 17 N/A 3/ 4
ST. JOSEPH BUOY 73 74 30/ 12/ 16 1015.7R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-200700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 67 66 97 CALM 29.95S TC 19
MACOMB* PTCLDY 66 66 100 CALM 29.99S TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-200700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOCLDY 69 69 100 N6 29.95F TC 21
DECATUR PTCLDY 68 67 96 CALM 29.94S TC 20
PEORIA MOCLDY 69 68 96 CALM 29.96R TC 21
6HR MIN TEMP: 69; 6HR MAX TEMP: 78; 6HR PCP: 0.12;
SPRINGFIELD LGT RAIN 68 67 96 N5 29.93S TC 20
6HR MIN TEMP: 68; 6HR MAX TEMP: 78; 6HR PCP: 0.03;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-200700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 67 67 100 CALM 29.93R TC 19
MATTOON MOCLDY 68 66 93 E7 29.94S TC 20
ILZ079-100>102-200700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLOUDY 73 72 96 CALM 29.91S TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-200700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MARION CLEAR 74 73 99 CALM 29.92F TC 23
MT. VERNON CLOUDY 74 73 97 CALM 29.92F TC 23
CENTRALIA* CLOUDY 73 73 98 CALM 29.93R TC 23
SALEM* MOCLDY 73 73 100 MISG 29.93R TC 23
ILZ067-068-072-073-078-083-087-091-200700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 73 71 93 SW3 29.91F TC 23
FAIRFIELD* CLOUDY 72 71 97 CALM 29.92S TC 22
HARRISBURG* PTCLDY 74 72 92 S6 29.94R TC 24
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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