Regional Weather Roundup
Issued by NWS

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099
ASUS43 KLOT 300358
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT TUE SEP 29 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.

ILZ001-002-007-009-015-016-024-300500-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         MOCLDY    72  54  53 S9        29.88R TC  22
$$

ILZ003-004-008-010-011-017-018-300500-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    68  48  48 SE7       29.91S TC  20
$$

ILZ005-006-012>014-019>023-300500-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    69  49  48 S9        29.92S TC  21
CHICAGO-MIDWAY NOT AVBL
AURORA         CLOUDY    66  48  52 S7        29.92S TC  19
WAUKEGAN       CLOUDY    66  56  70 S5        29.91S TC  19
DUPAGE AIRPORT CLOUDY    67  50  54 S8        29.93R TC  19
WHEELING       CLOUDY    65  55  70 S7        29.93S TC  18
NORTHERLY ISL*   N/A     70  48  45 S9          N/A  TC  21
$$

LMZ740>746-300500-
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            66 65  150/  8/ 12 1012.6S         1/ 3
WAUKEGAN HARBOR            67 66  170/ 10/ 14 1013.5F         1/ 3
CHICAGO BUOY               69 64  200/ 10/ 16 1012.5F         1/ 3
HARRISON CRIB              71     190/ 15/ 16   N/A
NORTHERLY ISL              70     160/  7/  8   N/A
CALUMET HARBOR                    170/  7/ 11 1014.0
MICHIGAN CITY              69     160/ 10/ 12 1012.9F
MICH CITY BUOY             65 63  170/ 10/ 12   N/A           1
ST. JOSEPH BUOY            66 62  150/ 10/ 12 1015.1F         1
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-300500-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-300500-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PEORIA         NOT AVBL
SPRINGFIELD    MOCLDY    71  48  43 S7        29.94F TC  22
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-300500-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ILZ079-100>102-300500-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-300500-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL
$$

ILZ067-068-072-073-078-083-087-091-300500-
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
$$