Regional Weather Roundup
Issued by NWS

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637
ASUS43 KLOT 140510
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 AM CDT MON SEP 14 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.

ILZ001-002-007-009-015-016-024-140600-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         MOCLDY    56  55  97 CALM      30.21R TC  13
STERLING*      FOG       52  52 100 CALM      30.23R VSB 1   TC  11
SAVANNA*       CLEAR     51  49  95 CALM      30.21R TC  10
$$

ILZ003-004-008-010-011-017-018-140600-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLEAR     49  49 100 CALM      30.23R TC   9
FREEPORT*      CLEAR     52  51  95 CALM      30.23R TC  11
ROCHELLE*      CLEAR     47  46  94 CALM      30.22R TC   9
DE KALB*       CLEAR     53  52  99 W5        30.22R TC  11
PERU*          CLEAR     54  52  94 N3        30.21R TC  12
$$

ILZ005-006-012>014-019>023-140600-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLEAR     56  52  86 CALM      30.19R TC  13
CHICAGO-MIDWAY CLEAR     57  53  86 NW5       30.20R TC  14
AURORA         FOG       49  49 100 CALM      30.21R VSB 3/4 TC   9
JOLIET*        CLEAR     53  53 100 CALM      30.21R TC  12
WAUKEGAN       CLEAR     50  50 100 CALM      30.19R TC  10
DUPAGE AIRPORT CLEAR     53  52  96 CALM      30.21R TC  12
KANKAKEE*      CLEAR     55  53  95 CALM      30.21R TC  13
WHEELING       CLEAR     54  52  93 CALM      30.21R TC  12
ROMEOVILLE*    CLEAR     57  55  94 NW5       30.21R TC  14
LANSING*       CLEAR     54  50  85 CALM      30.20R TC  12
NORTHERLY ISL*   N/A     61  50  67 W7          N/A  TC  16
$$

LMZ740>746-140600-
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            60 68  240/  6/  8 1014.0          2/ 5
WAUKEGAN HARBOR            61 65  300/  6/  8 1021.8          2/ 5
WILMETTE BUOY              63     340/  8/ 12 1024.3R         2/ 5
CHICAGO BUOY               65 69              1021.1          2/ 5
HARRISON CRIB              63     290/  9/ 10   N/A
NORTHERLY ISL              62     270/  7/  7   N/A
CALUMET HARBOR                    250/  2/  3 1022.3
MICHIGAN CITY              66     350/  8/  9 1020.9R
MICH CITY BUOY             67 67  360/ 10/ 14   N/A           3/ 5
ST. JOSEPH BUOY            67 64  360/ 10/ 14 1022.7R         3/ 4
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-140600-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         CLOUDY    58  54  86 NE6       30.18S TC  14
GALESBURG*     MOCLDY    54  54 100 CALM      30.22R TC  12
MACOMB*        CLOUDY    56  56 100 NE5       30.23R TC  14
JACKSONVILLE*  CLEAR     57  57  99 NE5       30.19R TC  14
PITTSFIELD*    MOCLDY    60  55  82 CALM      30.20R TC  16
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-140600-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLEAR     52  52  99 CALM      30.21R TC  11
BLOOMINGTON    CLEAR     55  53  93 N8        30.21R TC  13
DECATUR        CLEAR     58  52  80 NE7       30.19R TC  14
PEORIA         CLEAR     57  53  86 N6        30.20R TC  14
LACON*         CLEAR     52  50  92 CALM      30.21R TC  11
LINCOLN*       CLEAR     57  53  85 N3        30.20R TC  14
SPRINGFIELD    CLEAR     58  55  90 N7        30.19R TC  14
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-140600-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLEAR     59  52  77 NE10      30.19R TC  15
RANTOUL*       CLEAR     58  55  88 NE6       30.20R TC  15
MATTOON        PTCLDY    59  53  80 N7        30.16R TC  15
PARIS*         CLEAR     59  53  81 NE3       30.18R TC  15
$$

ILZ079-100>102-140600-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLEAR     65  52  62 CALM      30.16S TC  18
BELLEVILLE     CLEAR     68  54  62 N8        30.12R TC  20
CAHOKIA*       CLEAR     68  53  58 NE7       30.14R TC  20
SPARTA*        DRIZZLE   68  56  65 NE5       30.14R TC  20
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-140600-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL
CAIRO*         CLEAR     76  69  79 CALM      30.08S TC  25
EFFINGHAM*     CLEAR     63  51  64 N6        30.18R TC  17
MARION         CLEAR     72  61  68 N6        30.11R TC  22
MT. VERNON     CLEAR     69  53  56 NE9       30.13R TC  21
CENTRALIA*     CLEAR     68  51  53 NE5       30.14R TC  20
SALEM*         CLEAR     68  52  56 MISG      30.15R TC  20
METROPOLIS*    CLEAR     72  71  95 CALM      30.08S TC  22
$$

ILZ067-068-072-073-078-083-087-091-140600-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  CLEAR     68  54  60 N10       30.13R TC  20
FLORA*         CLEAR     64  54  68 N6        30.15R TC  18
FAIRFIELD*     CLEAR     69  52  55 N7        30.12R TC  20
HARRISBURG*    CLEAR     72  63  74 N3        30.10S TC  22
ROBINSON*      CLEAR     64  57  77 N5        30.14R TC  18
$$

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