Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 231503
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CDT THU JUL 23 2026
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-231600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 70 55 59 CALM 30.23S TC 21
STERLING* SUNNY 73 48 41 NW5 30.25S TC 23
SAVANNA* SUNNY 70 57 63 CALM 30.24S TC 21
$$
ILZ003-004-008-010-011-017-018-231600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 72 50 45 VRB3 30.25S TC 22
FREEPORT* SUNNY 71 54 55 CALM 30.26S TC 22
$$
ILZ005-006-012>014-019>023-231600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 72 47 40 CALM 30.22F TC 22
CHICAGO-MIDWAY MOSUNNY 73 46 38 NE3 30.22F TC 23
AURORA SUNNY N/A N/A N/A NW6 30.23F
JOLIET* SUNNY 73 47 39 N5 30.24S TC 23
WAUKEGAN SUNNY 72 51 47 VRB5 30.22S TC 22
DUPAGE AIRPORT SUNNY 70 50 49 N5 30.22F TC 21
KANKAKEE* SUNNY 70 52 51 E5 30.24F TC 21
WHEELING SUNNY 72 49 44 CALM 30.24S TC 22
LANSING* SUNNY 71 51 49 E3 30.24S TC 22
NORTHERLY ISL* N/A 74 44 34 NE6 N/A TC 23
$$
LMZ740>746-231600-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 70 71 1021.9F 1
WAUKEGAN HARBOR 70 71 1022.7F 0
WILMETTE BUOY 70 110/ 2/ 4 1026.5R 1
CHICAGO BUOY 73 N/A 1/ 4
HARRISON CRIB 70 360/ 4/ 5 N/A
NORTHERLY ISL 73 50/ 1/ 7 N/A
CALUMET HARBOR 72 20/ 5/ 7 1023.6
BURNS HARBOR 1024.4S
MICHIGAN CITY 70 30/ 3/ 4 1022.4S
MICH CITY BUOY 71 74 110/ 2/ 4 N/A 1/ 4
ST. JOSEPH BUOY 66 66 CALM / 2 1024.4S 1
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-231600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 69 58 67 VRB3 30.22S TC 21
MACOMB* MOSUNNY 69 58 67 CALM 30.26S TC 21
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-231600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON SUNNY 70 52 52 E8 30.25S TC 21
DECATUR SUNNY 69 53 56 SE5 30.24R TC 21
PEORIA SUNNY 70 50 49 VRB3 30.24R TC 21
LINCOLN* SUNNY 71 53 52 E5 30.24S TC 22
SPRINGFIELD SUNNY 70 51 51 E6 30.23R TC 21
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-231600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 68 54 60 E3 30.23S TC 20
DANVILLE* N/A 70 55 57 CALM 30.24S VSB 3/4 TC 21
MATTOON SUNNY 70 55 59 E6 30.21S TC 21
$$
ILZ079-100>102-231600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 72 57 60 VRB5 30.22R TC 22
CAHOKIA* MOSUNNY 73 59 61 CALM 30.20R TC 23
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-231600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 73 59 60 E5 30.18S TC 23
CAIRO* SUNNY 75 62 63 NE10 30.16S TC 24
EFFINGHAM* SUNNY 70 57 62 NE6 30.23S TC 21
MARION SUNNY 73 57 56 NE8 30.18F TC 23
MT. VERNON SUNNY 74 57 55 NE6 30.20S TC 23
CENTRALIA* SUNNY 74 57 56 CALM 30.20S TC 23
SALEM* SUNNY 72 60 65 MISG 30.21S TC 22
$$
ILZ067-068-072-073-078-083-087-091-231600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 71 58 63 NE7 30.20S TC 22
FLORA* SUNNY 72 57 60 E8 30.21S TC 22
FAIRFIELD* SUNNY 71 58 63 CALM 30.20R TC 22
HARRISBURG* SUNNY 73 59 60 E6 30.18F TC 23
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$