National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Regional Weather Roundup
Issued by NWS

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714
ASUS43 KLOT 290908
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT WED JUL 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.

ILZ001-002-007-009-015-016-024-291000-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLEAR     65  62  90 E5        29.95R TC  18
STERLING*      CLEAR     61  60  97 E3        29.97R TC  16
SAVANNA*       CLEAR     64  58  82 CALM      29.96S TC  18
$$

ILZ003-004-008-010-011-017-018-291000-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLEAR     59  55  87 CALM      29.98R TC  15
FREEPORT*      CLEAR     59  57  95 CALM      29.98F TC  15
ROCHELLE*      CLEAR     57  54  91 CALM      29.97S TC  14
DE KALB*       CLEAR     60  56  86 N5        29.97S TC  16
PERU*          CLEAR     63  57  82 N5        29.95S TC  17
$$

ILZ005-006-012>014-019>023-291000-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLEAR     63  58  83 N8        29.93S TC  17
CHICAGO-MIDWAY CLEAR     65  62  90 NW8       29.92S TC  18
AURORA         CLEAR    N/A N/A N/A NW6       29.94S
JOLIET*        CLEAR     64  61  90 CALM      29.94S TC  18
WAUKEGAN       CLEAR     61  59  93 NW5       29.94R TC  16
DUPAGE AIRPORT CLEAR     59  57  93 N6        29.94S TC  15
KANKAKEE*      CLEAR     60  59  95 NW3       29.93S TC  16
WHEELING       PTCLDY    62  59  90 N3        29.95S TC  17
ROMEOVILLE*    CLOUDY    63  63 100 N6        29.94S TC  17
NORTHERLY ISL*   N/A     68  61  78 N6          N/A  TC  20
$$

LMZ740>746-291000-
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                 1013.4F         2/ 5
WAUKEGAN HARBOR            66 68              1014.3R         2/ 5
WILMETTE BUOY              70      50/ 10/ 14 1015.9R         3/ 6
CHICAGO BUOY               71 70   30/ 10     1012.3R         3/ 5
HARRISON CRIB              71      20/ 12/ 13   N/A
NORTHERLY ISL              67      20/  4/ 11   N/A
CALUMET HARBOR             70     360/  6/  8 1013.2
BURNS HARBOR                                  1013.5S
MICHIGAN CITY              70      30/ 13/ 14 1011.3S
MICH CITY BUOY             71 72   30/ 12/ 16   N/A           4/ 7
ST. JOSEPH BUOY            69 70   20/ 10/ 14 1013.7R         4/ 6
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-291000-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         PTCLDY    71  70  96 CALM      29.92R TC  22
GALESBURG*     CLEAR     65  60  84 CALM      29.96S TC  19
MACOMB*        PTCLDY    66  66 100 CALM      29.97R TC  19
JACKSONVILLE*  PTCLDY    67  67 100 E5        29.93R TC  20
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-291000-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLEAR     59  59  98 MISG      29.94R TC  15
BLOOMINGTON    CLEAR     64  58  80 N5        29.95S TC  18
DECATUR        CLEAR     63  57  81 CALM      29.93S TC  17
PEORIA         CLEAR     65  56  72 NE6       29.94S TC  18
LACON*         CLEAR     60  55  84 CALM      29.95S TC  15
LINCOLN*       CLEAR     65  65 100 CALM      29.94S TC  18
SPRINGFIELD    CLEAR     65  62  90 CALM      29.93S TC  18
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-291000-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLEAR     58  57  97 NW7       29.93R TC  14
DANVILLE*        N/A     60  58  93 N3        29.92S TC  15
MATTOON        CLEAR     60  58  92 MISG      29.91R TC  16
PARIS*         CLEAR     61  59  92 N3        29.91S TC  16
$$

ILZ079-100>102-291000-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          PTCLDY    70  67  92 E3        29.92S TC  21
BELLEVILLE     PTCLDY    71  71  97 CALM      29.89R TC  22
CAHOKIA*       PTCLDY    70  68  93 CALM      29.90S TC  21
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-291000-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL
CAIRO*         CLEAR     74  73  97 CALM      29.87S TC  23
EFFINGHAM*     CLEAR     64  63  98 CALM      29.93R TC  18
MARION         CLEAR     68  67  98 CALM      29.90S TC  20
MT. VERNON     CLEAR     64  62  93 CALM      29.90R TC  18
CENTRALIA*     CLEAR     68  64  86 CALM      29.91R TC  20
SALEM*         CLEAR     67  63  87 MISG      29.91R TC  20
METROPOLIS*    CLEAR     71  70  98 N3        29.87F TC  22
$$

ILZ067-068-072-073-078-083-087-091-291000-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  CLEAR     65  62  90 N5        29.88S TC  18
FAIRFIELD*     CLEAR     65  62  88 CALM      29.89S TC  19
HARRISBURG*    CLEAR     66  66  98 CALM      29.89S TC  19
ROBINSON*      PTCLDY    63  63 100 N3        29.89S TC  17
$$

ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURE IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY
$$