523
ASUS43 KLOT 191010
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 AM CDT WED AUG 19 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.
ILZ001-002-007-009-015-016-024-191100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 69 68 96 SW3 29.92R TC 21
STERLING* FOG 64 64 100 E3 29.93S VSB 1/4 TC 18
SAVANNA* PTCLDY 64 64 97 CALM 29.92F FOG TC 18
ILZ003-004-008-010-011-017-018-191100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 63 62 97 CALM 29.94S TC 17
FREEPORT* MOCLDY 60 59 96 CALM 29.95F VSB 1/2 TC 16
ROCHELLE* MOCLDY 62 60 94 CALM 29.94F FOG TC 17
DE KALB* MOCLDY 63 63 100 CALM 29.94F TC 17
PERU* MOCLDY 70 70 100 CALM 29.92F TC 21
ILZ005-006-012>014-019>023-191100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 66 65 96 CALM 29.91F TC 19
CHICAGO-MIDWAY MOCLDY 67 66 97 SW5 29.92S TC 19
AURORA MOCLDY 63 63 100 CALM 29.93R TC 17
JOLIET* N/A 68 68 100 CALM 29.93S FOG TC 20
WAUKEGAN PTCLDY 63 62 97 W3 29.92R TC 17
DUPAGE AIRPORT MOCLDY 64 64 100 CALM 29.92S TC 18
KANKAKEE* MOCLDY 65 64 95 CALM 29.95R TC 19
WHEELING PTCLDY 64 64 100 CALM 29.93S TC 18
ROMEOVILLE* FOG 66 66 100 CALM 29.94S VSB 1 TC 19
LANSING* FOG 65 65 100 CALM 29.94R VSB<1/4 TC 19
NORTHERLY ISL* N/A 69 65 86 W7 N/A TC 21
LMZ740>746-191100-
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 67 73 290/ 10/ 12 1009.5 1
WAUKEGAN HARBOR 67 73 N/A 0
WILMETTE BUOY 70 340/ 12/ 16 1015.8S 1
CHICAGO BUOY 72 73 1011.9 1
NORTHERLY ISL 69 230/ 4 N/A
CALUMET HARBOR 67 250/ 1/ 2 1013.5
MICH CITY BUOY 72 74 260/ 6/ 8 N/A 1/ 4
ST. JOSEPH BUOY 72 74 280/ 8/ 10 1014.0F 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-191100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 70 68 93 CALM 29.93S TC 21
GALESBURG* CLOUDY 69 69 100 CALM 29.95S TC 21
MACOMB* LGT RAIN 69 69 100 S3 29.96S TC 21
JACKSONVILLE* CLOUDY 68 68 100 E3 29.93F TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-191100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 69 69 100 SW3 29.94R TC 21
BLOOMINGTON CLOUDY 70 70 100 SW5 29.96 TC 21
DECATUR LGT RAIN 72 69 90 SW6 29.95F TC 22
PEORIA CLOUDY 70 69 97 S3 29.94S TC 21
SPRINGFIELD CLOUDY 70 68 93 SW5 29.96S TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-191100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 68 68 100 CALM 29.96S TC 20
RANTOUL* CLOUDY 68 68 99 SW5 29.96R TC 20
MATTOON LGT RAIN 72 67 84 MISG 29.97R TC 22
PARIS* CLOUDY 66 65 97 CALM 29.97S TC 19
ILZ079-100>102-191100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* RAIN 73 71 93 CALM 29.96R FOG TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-191100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* LGT RAIN 70 70 100 N5 29.99R TC 21
MARION LGT RAIN 71 71 98 CALM 29.96R TC 22
MT. VERNON CLOUDY 72 70 93 CALM 29.95F TC 22
CENTRALIA* CLOUDY 73 70 92 CALM 29.96R TC 23
SALEM* LGT RAIN 73 71 94 MISG 29.96R TC 23
METROPOLIS* PTCLDY 67 66 97 CALM 29.96R TC 20
ILZ067-068-072-073-078-083-087-091-191100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 70 67 90 CALM 29.97R TC 21
FLORA* LGT RAIN 70 N/A N/A CALM 29.94F TC 21
FAIRFIELD* LGT RAIN 70 68 94 CALM 29.94F TC 21
HARRISBURG* MOCLDY 68 68 99 CALM 29.96R TC 20
ROBINSON* LGT RAIN 68 68 100 S1 29.95S FOG TC 20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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