257
ASUS43 KLOT 211410
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CDT MON SEP 21 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.

ILZ001-002-007-009-015-016-024-211500-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLOUDY    60  57  89 E16       30.09S TC  16
STERLING*      CLOUDY    60  59  96 NE16      30.12S TC  16
SAVANNA*       CLOUDY    59  57  91 NE10G17   30.13S TC  15
$$

ILZ003-004-008-010-011-017-018-211500-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLOUDY    60  55  83 NE9       30.16F TC  16
FREEPORT*      CLOUDY    59  58  95 E9        30.17S TC  15
ROCHELLE*      CLOUDY    60  57  89 NE17      30.14S TC  16
DE KALB*       CLOUDY    60  55  86 NE12      30.15S TC  15
PERU*          CLOUDY    61  59  94 NE14G20   30.11R FOG     TC  16
$$

ILZ005-006-012>014-019>023-211500-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    60  55  83 E12       30.14R TC  16
CHICAGO-MIDWAY LGT RAIN  60  57  89 E13       30.14R FOG     TC  16
AURORA         CLOUDY    60  56  86 NE12      30.13R TC  16
JOLIET*        CLOUDY    60  60 100 NE9       30.12S TC  16
WAUKEGAN       CLOUDY    61  54  77 E18G29    30.17R TC  16
DUPAGE AIRPORT CLOUDY    61  56  83 NE13      30.14R TC  16
KANKAKEE*      CLOUDY    60  58  94 NE9G16    30.09F TC  16
WHEELING       CLOUDY    61  55  81 E9G21     30.16R TC  16
LANSING*       CLOUDY    58  55  89 NE9       30.13S TC  14
NORTHERLY ISL*   N/A     59  55  87 NE20        N/A  TC  15
$$

LMZ740>746-211500-
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            63 64   60/ 19/ 25 1016.4          6/ 5
WAUKEGAN HARBOR            63 64   30/ 19/ 27 1020.7          5/ 6
WILMETTE BUOY              62     100/ 19/ 25 1022.4R         6/ 6
CHICAGO BUOY               62 65              1019.5          5/ 7
NORTHERLY ISL              60      60/ 14/ 19   N/A
CALUMET HARBOR             60      40/ 11/ 16 1020.5
MICH CITY BUOY             57 57   50/ 12/ 14   N/A           4/ 5
ST. JOSEPH BUOY            57 53   60/ 10/ 14 1021.3R         3/ 5
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-211500-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         FOG       63  62  97 NE5       30.05R VSB 1   TC  17
GALESBURG*     CLOUDY    59  59 100 NE9       30.08S FOG     TC  15
MACOMB*        CLOUDY    61  61 100 E9        30.08S TC  16
JACKSONVILLE*  CLOUDY    60  60 100 NE10      30.05R TC  16
PITTSFIELD*    CLOUDY    64  64  98 NE6       30.05S FOG     TC  18
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-211500-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLOUDY    61  59  94 NE12G17   30.08S TC  16
BLOOMINGTON    CLOUDY    60  60 100 NE14      30.07R TC  16
DECATUR        CLOUDY    62  60  93 E13       30.04R TC  17
PEORIA         CLOUDY    61  58  90 NE13      30.07R TC  16
LACON*         CLOUDY    59  55  87 NE5       30.08S TC  15
LINCOLN*       CLOUDY    63  63 100 NE9       30.05S TC  17
SPRINGFIELD    CLOUDY    62  60  93 VRB5      30.04R TC  17
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-211500-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLOUDY    62  59  90 E13       30.04R TC  17
RANTOUL*       CLOUDY    61  61  99 E8        30.06R TC  16
MATTOON        CLOUDY    62  61  96 N8        30.02R TC  17
PARIS*         CLOUDY    62  61  97 NE6       30.02S TC  17
$$

ILZ079-100>102-211500-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLOUDY    66  66 100 N8        30.01R FOG     TC  19
BELLEVILLE     CLOUDY    73  72  97 CALM      29.98R TC  23
CAHOKIA*       CLOUDY    72  69  90 CALM      30.00R TC  22
SPARTA*        CLOUDY    70  70 100 N3        30.01S TC  21
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211500-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     SUNNY     72  68  88 N6        29.99R TC  22
CAIRO*         MOSUNNY   75  72  88 CALM      29.99R TC  24
EFFINGHAM*     CLOUDY    65  64  94 N7        30.02R TC  19
MARION         PTSUNNY   73  66  78 CALM      29.99R TC  23
MT. VERNON     CLOUDY    72  68  88 CALM      30.01R TC  22
CENTRALIA*     CLOUDY    70  69  98 N3        30.00R TC  21
SALEM*         CLOUDY    71  70  99 MISG      30.00R TC  22
METROPOLIS*    PTSUNNY   75  68  80 CALM      29.99R TC  24
$$

ILZ067-068-072-073-078-083-087-091-211500-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  CLOUDY    69  67  93 N6        29.98R TC  21
FLORA*         CLOUDY    70 N/A N/A NE3       30.00R TC  21
FAIRFIELD*     CLOUDY    71  67  88 CALM      29.99R TC  22
HARRISBURG*    PTSUNNY   74  69  83 CALM      29.99S TC  23
ROBINSON*      CLOUDY    66  66 100 NE7       29.98S TC  19
$$

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