Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 180810
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 AM CDT SAT JUL 18 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.
ILZ001-002-007-009-015-016-024-180900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 78 72 81 W9 29.93S HX 80 TC 26
STERLING* CLEAR 76 76 100 SW8 29.92F TC 24
$$
ILZ003-004-008-010-011-017-018-180900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 75 72 90 S5 29.90F TC 24
$$
ILZ005-006-012>014-019>023-180900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 80 72 76 SW8 29.88F HX 84 TC 27
CHICAGO-MIDWAY CLEAR 79 73 82 W10 29.88F HX 82 TC 26
AURORA CLEAR 77 74 90 SW8 29.89F TC 25
WAUKEGAN PTCLDY 78 73 84 W8 29.86F HX 81 TC 26
DUPAGE AIRPORT CLEAR 77 73 87 SW10 29.89F TC 25
WHEELING CLEAR 80 73 79 SW6 29.88F HX 84 TC 27
NORTHERLY ISL* N/A 81 70 69 SW8 N/A HX 84 TC 27
$$
LMZ740>746-180900-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 79 75 1011.4 1
WAUKEGAN HARBOR 80 76 1012.2 1
WILMETTE BUOY 80 230/ 10/ 14 1015.1F 1/ 2
CHICAGO BUOY 82 78 240/ 12/ 16 1010.7 1
HARRISON CRIB 83 250/ 15/ 18 N/A
NORTHERLY ISL 81 220/ 7/ 9 N/A
BURNS HARBOR 1012.9F
MICHIGAN CITY 78 190/ 10/ 12 1010.3F
MICH CITY BUOY 78 78 210/ 8/ 12 N/A 1/ 3
ST. JOSEPH BUOY 79 78 230/ 12/ 16 1012.8F 2/ 3
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-180900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 76 71 85 W8 30.00F TC 24
JACKSONVILLE* CLEAR 75 75 100 SW3 29.99S TC 24
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-180900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 77 73 87 SW12 29.98F TC 25
DECATUR CLEAR 78 72 81 W6 29.99S HX 80 TC 26
PEORIA CLEAR 78 72 81 W7 29.96F HX 80 TC 26
SPRINGFIELD CLEAR 74 72 93 SW5 29.99S TC 23
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-180900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 74 73 97 SW5 29.98F TC 23
MATTOON CLEAR 77 73 87 SW6 29.98F TC 25
$$
ILZ079-100>102-180900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE CLEAR 77 76 96 SW7 29.99S TC 25
CAHOKIA* CLEAR 77 74 90 SW3 30.01S TC 25
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLEAR 75 75 100 S6 30.01F TC 24
MT. VERNON CLEAR 74 73 97 SW5 30.02S TC 23
METROPOLIS* CLEAR 75 75 100 SW5 30.04S TC 24
$$
ILZ067-068-072-073-078-083-087-091-180900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FAIRFIELD* CLEAR 75 73 94 SW3 30.01 TC 24
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$