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

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284
ASUS43 KLOT 040210
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 PM CST WED DEC 03 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.

ILZ001-002-007-009-015-016-024-040300-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLEAR     20  13  74 NW8       30.24R WCI  10 TC  -7
STERLING*        N/A    N/A N/A N/A MISG        N/A
$$

ILZ003-004-008-010-011-017-018-040300-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       PTCLDY    22  12  65 NW18      30.21R WCI   7 TC  -6
DE KALB*       CLOUDY    25  19  77 CALM      30.17R TC  -4
PERU*          CLOUDY    27  19  70 N13       30.19R WCI  16 TC  -3
$$

ILZ005-006-012>014-019>023-040300-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    26  18  71 NW9       30.14R WCI  17 TC  -3
CHICAGO-MIDWAY CLOUDY    27  21  78 NW13      30.14R WCI  16 TC  -3
AURORA         CLOUDY    25  20  81 N13       30.15R WCI  14 TC  -4
JOLIET*        CLOUDY    29  25  83 N8G17     30.16R WCI  21 TC  -1
WAUKEGAN       CLOUDY    23  14  68 NW10      30.15R WCI  12 TC  -5
DUPAGE AIRPORT CLOUDY    25  17  72 NW14      30.15R WCI  13 TC  -4
WHEELING       CLOUDY    26  18  71 NW13      30.16R WCI  15 TC  -3
MORRIS*        CLOUDY    28  24  86 N7        30.16R WCI  20 TC  -2
ROMEOVILLE*    CLOUDY    27  23  86 NW12G22   30.16R WCI  16 TC  -3
LANSING*       LGT SNOW  29  25  86 NW5       30.14R WCI  24 TC  -2
NORTHERLY ISL*   N/A     28  22  78 NW12        N/A  WCI  18 TC  -2
$$

LMZ740>746-040300-
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           30 44  320/ 17/ 23 1020.3R         5/ 6
HARRISON CRIB              28     320/ 18/ 21   N/A
NORTHERLY ISL              29     290/  8/ 17   N/A
CALUMET HARBOR             29     310/  6/ 11 1019.8R
BURNS HARBOR               31     260/  7/  8 1020.3R
MICHIGAN CITY              33     310/  5/  6 1019.2R
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-040300-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         CLOUDY    25  20  81 NW17      30.23R WCI  12 TC  -4
GALESBURG*     CLEAR     20  19  93 NW12      30.24R WCI   8 TC  -6
MACOMB*        CLOUDY    23  19  85 NW14      30.26R WCI  11 TC  -5
JACKSONVILLE*  CLOUDY    31  26  80 NW18G24   30.20R WCI  19 TC   0
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-040300-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLOUDY    30  26  87 N16       30.16R FOG     WCI  18
BLOOMINGTON    CLOUDY    28  27  93 NW18G24   30.16R WCI  16 TC  -2
DECATUR        CLOUDY    31  27  85 W6        30.17R WCI  25 TC  -1
PEORIA         CLOUDY    27  20  75 N12G20    30.21R WCI  17 TC  -3
LACON*         CLOUDY    27  20  74 NW9       30.19R WCI  18 TC  -3
LINCOLN*       CLOUDY    32  25  76 NW8G17    30.19R WCI  25 TC   0
SPRINGFIELD    CLOUDY    33  31  92 NW14      30.18R WCI  23 TC   1
TAYLORVILLE    CLOUDY    32  28  86 W6        30.18R WCI  26 TC   0
$$

ILZ033-039-045-046-055>057-062-063-040300-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLOUDY    29  27  92 SW9       30.15R WCI  20 TC  -2
RANTOUL*       CLOUDY    30  28  94 W7        30.15R FOG     WCI  23
MATTOON        CLOUDY    29  26  89 S7        30.15S WCI  22 TC  -2
PARIS*         CLOUDY    28  25  87 SW7       30.17R WCI  21 TC  -2
$$

ILZ079-100>102-040300-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          MOCLDY    32  28  86 CALM      30.18R TC   0
BELLEVILLE     CLOUDY    34  30  88 CALM      30.18R TC   1
CAHOKIA*       CLOUDY    34  30  85 CALM      30.18R TC   1
SPARTA*        CLOUDY    32  29  88 S5        30.19S WCI  27 TC   0
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-040300-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLOUDY    32  27  81 SW6       30.20R WCI  26 TC   0
CAIRO*         CLOUDY    32  28  87 CALM      30.21S TC   0
EFFINGHAM*     MOCLDY    31  29  91 CALM      30.19S TC   0
MT. VERNON     CLOUDY   N/A N/A N/A SW6       30.19R
CENTRALIA*       N/A    N/A N/A N/A MISG        N/A
SALEM*         CLOUDY    33  29  85 SW5       30.18R WCI  29 TC   1
METROPOLIS*    CLOUDY    32  27  81 CALM      30.21R TC   0
$$

ILZ067-068-072-073-078-083-087-091-040300-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  MOCLDY    30  27  88 SW5       30.19R WCI  25 TC  -1
FLORA*         CLOUDY    32  30  93 CALM      30.19S TC   0
FAIRFIELD*     CLOUDY    32  28  83 S5        30.19R WCI  27 TC   0
HARRISBURG*    CLOUDY    32  26  81 SW5       30.19F WCI  27 TC   0
ROBINSON*      CLOUDY    30  28  93 MISG      30.18S FOG     TC  -1
$$

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