Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 140403
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT SUN SEP 13 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.
ILZ001-002-007-009-015-016-024-140500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 54 54 100 SW3 30.20R TC 12
STERLING* FOG 52 52 100 CALM 30.21R VSB 3/4 TC 11
SAVANNA* CLEAR 52 50 95 CALM 30.20R TC 11
$$
ILZ003-004-008-010-011-017-018-140500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 51 51 100 CALM 30.21R TC 11
FREEPORT* CLEAR 52 51 95 CALM 30.21R TC 11
$$
ILZ005-006-012>014-019>023-140500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 57 53 86 SW3 30.18R TC 14
CHICAGO-MIDWAY CLEAR 59 53 80 W5 30.19R TC 15
AURORA CLEAR 50 50 100 CALM 30.19S TC 10
JOLIET* CLEAR 54 54 100 CALM 30.20R TC 12
WAUKEGAN CLEAR 53 53 100 W3 30.18R TC 12
DUPAGE AIRPORT CLEAR 54 53 97 CALM 30.19S TC 12
WHEELING PTCLDY 55 51 86 CALM 30.20R TC 13
LANSING* CLEAR 54 49 85 CALM 30.19S TC 12
NORTHERLY ISL* N/A 62 50 64 W7 N/A TC 17
$$
LMZ740>746-140500-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 62 67 280/ 6/ 8 1013.7F 2/ 5
WAUKEGAN HARBOR 61 66 280/ 6/ 8 1021.3R 2/ 5
WILMETTE BUOY 64 320/ 8/ 12 1023.9R 2/ 5
CHICAGO BUOY 65 69 1020.7R 2/ 6
HARRISON CRIB 64 290/ 9/ 10 N/A
NORTHERLY ISL 63 260/ 5 N/A
CALUMET HARBOR 60 260/ 1/ 3 1022.1
MICHIGAN CITY 65 340/ 10/ 11 1020.4
MICH CITY BUOY 66 67 350/ 10/ 14 N/A 3/ 6
ST. JOSEPH BUOY 66 64 350/ 8/ 12 1022.2R 3/ 5
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-140500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 58 54 86 NE6 30.18R TC 14
MACOMB* PTCLDY 56 56 100 N5 30.22R TC 13
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-140500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 58 52 80 N10 30.20R TC 14
DECATUR CLEAR 59 54 83 NE7 30.17R TC 15
PEORIA CLEAR 57 52 83 N5 30.19R TC 14
SPRINGFIELD CLEAR 59 55 87 N3 30.17R TC 15
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-140500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 60 53 77 N7 30.18R TC 16
MATTOON CLEAR 61 52 72 N7 30.15R TC 16
$$
ILZ079-100>102-140500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLEAR 70 55 59 NE9 30.13R TC 21
SPARTA* CLEAR 71 57 61 N5 30.13R TC 22
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-140500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLEAR 65 48 52 N6 30.16R TC 19
MT. VERNON CLEAR 71 57 61 NE8 30.11R TC 22
CENTRALIA* CLEAR 71 53 52 NE7 30.13R TC 22
SALEM* CLEAR 70 52 52 MISG 30.13R TC 21
$$
ILZ067-068-072-073-078-083-087-091-140500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 71 53 52 N8 30.11R TC 22
FAIRFIELD* CLEAR 71 55 57 N6 30.11R TC 22
HARRISBURG* CLEAR 74 64 71 NE6 30.09R TC 23
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$