684
ASUS43 KLOT 180401
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 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.

ILZ001-002-007-009-015-016-024-180500-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLEAR     65  63  93 CALM      30.02S TC  18
STERLING*      CLEAR     67  66  97 CALM      30.03S TC  19
SAVANNA*       CLEAR     65  62  92 SE5       30.02F TC  18
$$

ILZ003-004-008-010-011-017-018-180500-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLEAR     65  63  93 SE5       30.02S TC  18
FREEPORT*      CLEAR     65  64  96 SW5       30.03F TC  19
ROCHELLE*      CLEAR     63  61  94 S3        30.03F TC  17
DE KALB*       CLEAR     67  62  84 SW5       30.04S TC  20
$$

ILZ005-006-012>014-019>023-180500-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLEAR     70  58  65 S6        30.01R TC  21
CHICAGO-MIDWAY CLEAR     70  58  65 S6        30.02R TC  21
AURORA         CLEAR     65  64  97 CALM      30.03R TC  18
JOLIET*        CLEAR     66  66 100 CALM      30.04R TC  19
WAUKEGAN       CLEAR     65  61  87 SW6       30.00R TC  18
DUPAGE AIRPORT CLEAR     67  62  84 SE5       30.02R TC  19
KANKAKEE*      PTCLDY    66  65  95 S3        30.05R TC  19
WHEELING       PTCLDY    69  58  67 CALM      30.03R TC  21
LANSING*       CLEAR     64  62  94 CALM      30.03S TC  18
NORTHERLY ISL*   N/A     72  57  59 S5          N/A  TC  22
$$

LMZ740>746-180500-
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  180/  8/ 10 1015.7R         1/ 5
WAUKEGAN HARBOR            73 74  210/  8/ 12 1016.6R         1/ 5
WILMETTE BUOY              74     230/  8/ 12 1019.1R         1/ 5
CHICAGO BUOY               74 74              1015.3R         1/ 4
HARRISON CRIB              74     190/  8/  9   N/A
NORTHERLY ISL              71     200/  3/  5   N/A
CALUMET HARBOR             71     190/  2/  3 1016.6
MICHIGAN CITY              69     190/  4/  5 1015.1R
MICH CITY BUOY             72 74  210/  6/ 10   N/A           2/ 5
ST. JOSEPH BUOY            73 75  260/  2/  4 1016.9R         1/ 4
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-180500-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         PTCLDY    69  65  86 CALM      30.06S TC  21
GALESBURG*     CLEAR     65  65 100 CALM      30.05S TC  18
MACOMB*        CLEAR     64  64 100 CALM      30.06F TC  18
JACKSONVILLE*  PTCLDY    66  66 100 CALM      30.07R TC  19
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-180500-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        PTCLDY    65  65 100 CALM      30.05R TC  18
BLOOMINGTON    PTCLDY    67  63  87 CALM      30.07R TC  19
DECATUR        PTCLDY    67  63  87 CALM      30.06S TC  19
PEORIA         CLEAR     68  66  93 CALM      30.04S TC  20
LACON*         CLEAR     65  63  91 CALM      30.03S TC  19
LINCOLN*       PTCLDY    68  68 100 CALM      30.06R TC  20
SPRINGFIELD    PTCLDY    67  66  97 CALM      30.06R TC  19
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-180500-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      PTCLDY    67  63  87 W5        30.05S TC  19
MATTOON        PTCLDY    67  63  87 W5        30.04F TC  19
PARIS*         MOCLDY    68  67  98 CALM      30.05S TC  20
$$

ILZ079-100>102-180500-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          PTCLDY   N/A N/A N/A CALM      30.07R
BELLEVILLE     PTCLDY    69  68  97 S3        30.04S TC  21
CAHOKIA*       PTCLDY    70  67  90 CALM      30.06S TC  21
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180500-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL
CAIRO*         CLEAR     70  69  98 CALM      30.07S TC  21
MARION         PTCLDY    67  66  98 CALM      30.08R TC  19
MT. VERNON     PTCLDY    67  67 100 CALM      30.07S TC  19
CENTRALIA*     MOCLDY    69  68  97 CALM      30.07S TC  20
SALEM*           N/A     69  68  97 MISG      30.06S TC  21
METROPOLIS*    CLEAR     68  68  98 CALM      30.07S TC  20
$$

ILZ067-068-072-073-078-083-087-091-180500-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  PTCLDY    70  65  84 NW6       30.04R TC  21
FLORA*         PTCLDY    70  64  83 CALM      30.06S TC  21
FAIRFIELD*     PTCLDY    66  64  95 CALM      30.06R TC  19
HARRISBURG*    PTCLDY    68  67  98 CALM      30.07R TC  20
$$

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