Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 181056
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CDT TUE AUG 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.
ILZ001-002-007-009-015-016-024-181200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 66 63 90 CALM 30.02F TC 19
$$
ILZ003-004-008-010-011-017-018-181200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
$$
ILZ005-006-012>014-019>023-181200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 66 62 87 SW6 30.01S TC 19
CHICAGO-MIDWAY NOT AVBL
AURORA PTCLDY 61 61 100 SW3 30.03S TC 16
WAUKEGAN PTCLDY 64 61 90 W5 30.00R TC 18
DUPAGE AIRPORT PTCLDY 63 62 97 CALM 30.02S TC 17
WHEELING PTCLDY 63 61 93 CALM 30.02F TC 17
ROMEOVILLE* CLEAR 66 66 100 SW5 30.04S TC 19
NORTHERLY ISL* N/A 68 61 78 W5 N/A TC 20
$$
LMZ740>746-181200-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 68 74 260/ 10/ 14 1015.2S 1
WAUKEGAN HARBOR 69 74 260/ 10/ 12 1016.2S 1
WILMETTE BUOY 71 260/ 12/ 16 1018.7F 1/ 2
CHICAGO BUOY 71 73 1015.2S 1
HARRISON CRIB 73 240/ 11/ 13 N/A
NORTHERLY ISL 69 260/ 4/ 9 N/A
CALUMET HARBOR 240/ 3/ 5 1016.9
MICHIGAN CITY 68 220/ 9/ 10 1015.4R
MICH CITY BUOY 72 74 240/ 12/ 16 N/A 2/ 3
ST. JOSEPH BUOY 73 74 250/ 12/ 16 1017.2R 2/ 3
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-181200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-181200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD PTCLDY 63 62 97 CALM 30.06S TC 17
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-181200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
$$
ILZ079-100>102-181200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* CLEAR 64 64 100 CALM 30.06S TC 18
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
$$
ILZ067-068-072-073-078-083-087-091-181200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$