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

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789
ASUS43 KLOT 100201
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 PM CDT THU OCT 09 2025

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.

ILZ001-002-007-009-015-016-024-100300-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLEAR     51  38  60 SE3       30.28F TC  11
STERLING*      CLEAR     47  40  76 E6        30.32S TC   8
$$

ILZ003-004-008-010-011-017-018-100300-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       CLEAR     52  40  63 E3        30.33F TC  11
ROCHELLE*      CLEAR     46  38  72 SE6       30.33S TC   8
DE KALB*       CLEAR     51  40  67 E6        30.34S TC  11
PERU*          CLEAR     54  38  53 E6        30.32R TC  12
$$

ILZ005-006-012>014-019>023-100300-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLEAR     55  44  66 SE3       30.32F TC  13
CHICAGO-MIDWAY CLEAR     58  46  64 SE6       30.33F TC  14
AURORA         CLEAR     48  41  76 E6        30.32F TC   9
JOLIET*        CLEAR     52  44  74 E5        30.33F TC  11
WAUKEGAN       CLEAR     45  44  97 SE3       30.33F TC   7
DUPAGE AIRPORT CLEAR     53  43  68 SE6       30.32F TC  12
WHEELING       CLEAR     52  44  74 CALM      30.34F TC  11
MORRIS*        CLEAR     53  42  68 SE6       30.32S TC  11
LANSING*       CLEAR     49  41  73 CALM      30.35R TC  10
NORTHERLY ISL*   N/A     60  44  55 E12         N/A  TC  16
$$

LMZ740>746-100300-
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)
S. MID LAKE BUOY           60 67  130/ 12/ 14 1027.7F
WINTHROP HARBOR            61 65                N/A           1/ 4
WAUKEGAN HARBOR            61 65                N/A           1/ 3
WILMETTE BUOY              62     130/ 12/ 17 1028.0F         1/ 3
CHICAGO BUOY               63 39  110/ 12/ 16 1028.0F         1/ 3
HARRISON CRIB              62     130/ 14/ 16   N/A
NORTHERLY ISL              59     120/  9/  9   N/A
CALUMET HARBOR             62      80/  6/  9 1026.2
BURNS HARBOR               58     110/  5/  7 1028.1S
MICHIGAN CITY              56     120/  7/  8 1027.0F
ST. JOSEPH BUOY            57 57   90/  6/  8 1028.5F         0
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-100300-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         CLEAR     58  44  60 SE7       30.28F TC  14
GALESBURG*     CLEAR     55  34  45 CALM      30.30F TC  13
MACOMB*        CLEAR     50  40  68 SE5       30.31F TC  10
JACKSONVILLE*  CLEAR     50  41  72 CALM      30.30S TC  10
PITTSFIELD*    CLEAR     55  45  70 CALM      30.31R TC  13
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-100300-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BLOOMINGTON    CLEAR     53  36  52 SE9       30.33S TC  12
DECATUR        CLEAR     49  34  56 NE3       30.32S TC   9
PEORIA         CLEAR     52  41  66 CALM      30.31S TC  11
LACON*         CLEAR     56  34  43 SE5       30.31R TC  13
LINCOLN*       CLEAR     53  39  60 CALM      30.32S TC  12
SPRINGFIELD    CLEAR     52  43  71 CALM      30.31S TC  11
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-100300-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLEAR     53  36  52 NE7       30.33R TC  12
DANVILLE*      CLEAR     53  39  58 NE5       30.34S TC  12
RANTOUL*       CLEAR     54  34  47 E6        30.34R HAZE    TC  12
MATTOON        CLEAR     55  40  56 SE5       30.31S TC  13
PARIS*         CLEAR     46  35  65 CALM      30.34R TC   8
$$

ILZ079-100>102-100300-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLEAR     52  45  76 CALM      30.30S TC  11
BELLEVILLE     CLEAR     55  49  81 CALM      30.28S TC  13
CAHOKIA*       CLEAR     52  47  83 W7        30.29S TC  11
SPARTA*        CLEAR     60  42  50 CALM      30.31R TC  16
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-100300-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLEAR     52  48  86 CALM      30.29S TC  11
EFFINGHAM*     CLEAR     54  42  64 E3        30.33S TC  12
MARION         CLEAR     51  48  89 CALM      30.30S TC  11
MT. VERNON     CLEAR     46  45  96 CALM      30.31S TC   8
CENTRALIA*     CLEAR     48  42  79 CALM      30.31R TC   9
SALEM*         CLEAR     58  43  57 E3        30.31R TC  15
METROPOLIS*    CLEAR     55  47  77 CALM      30.30R TC  13
$$

ILZ067-068-072-073-078-083-087-091-100300-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  CLEAR     53  46  77 NE6       30.32S TC  12
FLORA*         CLEAR     54  45  71 E5        30.32S TC  12
FAIRFIELD*     CLEAR     53  45  76 CALM      30.31S TC  11
HARRISBURG*    CLEAR     53  47  81 MISG      30.31R TC  12
$$

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