Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 171656
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM CDT MON AUG 17 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.
ILZ001-002-007-009-015-016-024-171800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE FAIR 79 63 57 MISG 30.08 HX 80 TC 26
$$
ILZ003-004-008-010-011-017-018-171800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
$$
ILZ005-006-012>014-019>023-171800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 75 63 66 N6 30.04 TC 24
CHICAGO-MIDWAY NOT AVBL
AURORA FAIR 77 65 66 NW10 30.05 TC 25
WAUKEGAN PTSUNNY 74 62 66 NE6 30.05 TC 23
DUPAGE AIRPORT PTSUNNY 75 63 66 N8 30.05 TC 24
WHEELING PTSUNNY 75 64 68 NE6 30.07 TC 24
$$
LMZ740>746-171800-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 72 74 20/ 8/ 12 1017.2R 2/ 4
WAUKEGAN HARBOR 72 74 360/ 10/ 14 1018.0R 2/ 4
WILMETTE BUOY 72 60/ 10/ 14 1020.7R 3/ 5
CHICAGO BUOY 72 73 1016.7R 2/ 4
HARRISON CRIB 72 10/ 13/ 13 N/A
NORTHERLY ISL 72 20/ 9/ 12 N/A
CALUMET HARBOR 360/ 9/ 13 1017.7
MICHIGAN CITY 72 20/ 15/ 16 1015.6
MICH CITY BUOY 71 74 10/ 12/ 16 N/A 3/ 5
ST. JOSEPH BUOY 70 75 10/ 12/ 16 1017.9R 3/ 5
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-171800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-171800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD FAIR 79 64 60 NW13 30.08 HX 81 TC 26
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-171800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
$$
ILZ079-100>102-171800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 81 66 61 N9 30.09 HX 83 TC 27
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
MT. VERNON PTSUNNY 82 72 69 N8 30.04F HX 87 TC 28
$$
ILZ067-068-072-073-078-083-087-091-171800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$