155
ASUS43 KLOT 190306
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM CDT TUE AUG 18 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.
ILZ001-002-007-009-015-016-024-190400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 73 69 87 W5 29.93R TC 23
STERLING* PTCLDY 69 69 100 CALM 29.95R TC 21
SAVANNA* MOCLDY 69 67 92 CALM 29.94R TC 21
ILZ003-004-008-010-011-017-018-190400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 67 65 93 S3 29.95S TC 19
FREEPORT* PTCLDY 67 65 96 SE3 29.96S TC 19
ROCHELLE* CLOUDY 70 68 93 N8 29.96R TC 21
DE KALB* LGT RAIN 68 67 99 E3 29.96R TC 20
PERU* CLEAR 73 70 88 SW6 29.95R TC 23
ILZ005-006-012>014-019>023-190400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE TSTM 73 67 81 NW23G33 29.94R FOG TC 23
CHICAGO-MIDWAY MOCLDY 75 68 78 W6 29.92S TC 24
AURORA LGT RAIN 71 70 96 CALM 29.93R FOG TC 22
JOLIET* CLOUDY 76 71 85 CALM 29.94R TC 24
WAUKEGAN LGT RAIN 64 64 100 SW6 29.90F TC 18
DUPAGE AIRPORT MOCLDY 72 65 78 N18G24 29.95R TC 22
KANKAKEE* PTCLDY 73 69 88 SW6 29.95S TC 23
WHEELING LGT RAIN 67 65 93 CALM 29.95R TC 19
ROMEOVILLE* LGT RAIN 75 72 88 SW7 29.94S TC 24
LANSING* CLOUDY 72 67 86 SW3 29.94R TC 22
NORTHERLY ISL* N/A 76 65 68 W5 N/A TC 24
LMZ740>746-190400-
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 66 74 N/A 1/ 3
WAUKEGAN HARBOR 66 74 N/A 0
WILMETTE BUOY 70 50/ 16/ 23 1016.6R 1/ 2
CHICAGO BUOY 77 73 1012.3R 1
NORTHERLY ISL 76 200/ 3/ 11 N/A
CALUMET HARBOR 75 200/ 5/ 7 1013.4R
MICH CITY BUOY 74 74 200/ 8/ 10 N/A 1/ 3
ST. JOSEPH BUOY 74 74 210/ 10/ 12 1014.3R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-190400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 73 69 87 CALM 29.96R TC 23
GALESBURG* CLEAR 71 70 98 CALM 29.97S TC 22
MACOMB* CLEAR 70 70 100 W5 29.99R TC 21
JACKSONVILLE* CLEAR 69 69 100 CALM 29.96R TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-190400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 72 70 93 W3 29.96R TC 22
BLOOMINGTON CLEAR 72 69 90 SW7 29.97S TC 22
DECATUR CLEAR 73 67 81 SW3 29.96S TC 23
PEORIA CLEAR 74 69 85 W5 29.95S TC 23
LACON* PTCLDY 72 67 87 CALM 29.94R TC 22
LINCOLN* CLEAR 71 70 96 CALM 29.96S TC 22
SPRINGFIELD CLEAR 70 68 93 S6 29.95S TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-190400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 70 69 97 S5 29.96S TC 21
RANTOUL* CLEAR 70 68 93 CALM 29.96F TC 21
MATTOON CLEAR 73 68 84 S5 29.97R TC 23
PARIS* CLEAR 67 66 97 CALM 29.98R TC 20
ILZ079-100>102-190400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 72 70 94 CALM 29.96R TC 22
BELLEVILLE CLEAR 75 74 97 CALM 29.93S TC 24
CAHOKIA* CLEAR 76 71 85 CALM 29.94S TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 74 71 92 CALM 29.99S TC 23
EFFINGHAM* CLEAR 71 71 100 CALM 29.99S TC 22
MARION CLEAR 74 69 86 CALM 29.99S TC 23
MT. VERNON CLEAR 71 70 96 CALM 29.98R TC 22
CENTRALIA* CLEAR 71 70 96 CALM 29.97S TC 22
SALEM* N/A 72 70 93 MISG 29.97S TC 22
METROPOLIS* CLEAR 71 71 98 CALM 30.00R TC 22
ILZ067-068-072-073-078-083-087-091-190400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 74 68 81 S3 29.98R TC 23
FLORA* CLEAR 70 N/A N/A S3 29.98R TC 21
FAIRFIELD* CLEAR 72 67 87 CALM 29.98R TC 22
HARRISBURG* CLEAR 72 70 94 CALM 29.99S TC 22
ROBINSON* CLEAR 68 68 100 SW3 29.98R TC 20
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