Regional Weather Roundup
Issued by NWS

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830
ASUS43 KLOT 101501
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CST WED DEC 10 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.

ILZ001-002-007-009-015-016-024-101600-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         LGT SNOW  32  27  81 N17G29    29.65R WCI  21 TC   0
STERLING*      PTSUNNY   29  28  96 N17G24    29.63R FOG     WCI  17
$$

ILZ003-004-008-010-011-017-018-101600-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       LGT SNOW  28  25  88 N22G30    29.60R VSB 1   WCI  14
FREEPORT*      CLOUDY    29  26  89 N23       29.63R WCI  15 TC  -2
DE KALB*       LGT SNOW  28  27  94 N21G30    29.54R WCI  15 TC  -2
$$

ILZ005-006-012>014-019>023-101600-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  LGT SNOW  33  30  88 NW15G28   29.47R FOG     WCI  23
CHICAGO-MIDWAY LGT SNOW  33  32  96 NW14G22   29.47R VSB 1   WCI  23
AURORA         SNOW      30  29  96 N25       29.51R VSB 1/4 WCI  16
JOLIET*        CLOUDY    35  33  93 NW8G17    29.51R FOG     WCI  28
WAUKEGAN       LGT SNOW  31  29  92 NW12G24   29.48R FOG     WCI  22
DUPAGE AIRPORT LGT SNOW  32  29  88 NW17      29.50R FOG     WCI  21
WHEELING       LGT RAIN  33  30  88 N14G23    29.49R FOG     WCI  23
MORRIS*        CLOUDY    33  32  96 N15G23    29.50R WCI  23 TC   1
ROMEOVILLE*    LGT SNOW  34  34 100 NW9G18    29.48R FOG     WCI  26
LANSING*       DRIZZLE   34  31  87 NW9G18    29.46R WCI  27 TC   1
NORTHERLY ISL*   N/A     34  31  89 NW13        N/A  WCI  25 TC   1
$$

LMZ740>746-101600-
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)
HARRISON CRIB              34     320/ 22/ 25   N/A
NORTHERLY ISL              35     320/ 13/ 16   N/A
CALUMET HARBOR             35     300/  8/ 17  996.6R
BURNS HARBOR               36     300/ 12/ 15  996.3R
MICHIGAN CITY              37     290/ 29/ 32  994.7R
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-101600-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         CLOUDY    33  26  75 NW25G41   29.74R WCI  20 TC   1
GALESBURG*     LGT SNOW  32  32 100 W21G29    29.65R WCI  20 TC   0
MACOMB*        CLOUDY    32  29  89 NW28G36   29.70R WCI  18 TC   0
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-101600-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        CLOUDY    35  31  85 W15G32    29.53R WCI  26 TC   2
BLOOMINGTON    LGT SNOW  35  32  88 NW25G38   29.57R FOG     WCI  23
DECATUR        CLOUDY    38  32  79 W21G35    29.60R WCI  28 TC   3
PEORIA         LGT SNOW  34  29  82 W16G28    29.61R WCI  24 TC   1
LINCOLN*       CLOUDY    37  28  70 W14G30    29.61R WCI  29 TC   3
SPRINGFIELD    CLOUDY    36  31  82 W17G30    29.63R WCI  26 TC   2
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-101600-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLOUDY    36  33  89 W18       29.56R WCI  26 TC   2
RANTOUL*       CLOUDY    36  32  85 W18G24    29.53R WCI  26 TC   2
MATTOON        CLOUDY    40  34  79 W13G21    29.58R TC   4
PARIS*         CLOUDY    39  33  79 W17G24    29.57R WCI  30 TC   4
$$

ILZ079-100>102-101600-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          CLOUDY    43  32  65 W18G32    29.68R TC   6
BELLEVILLE     CLOUDY    46  29  51 W26G43    29.67R TC   8
CAHOKIA*       LGT RAIN  45  29  53 W16G37    29.70R TC   7
SPARTA*        PTSUNNY   46  33  60 NW20G26   29.69R TC   8
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-101600-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     PTSUNNY   44  37  76 SW8       29.69R TC   7
CAIRO*         CLOUDY    44  40  85 SW10G18   29.74S TC   7
EFFINGHAM*     CLOUDY    42  36  79 W17G29    29.64R TC   6
MARION         PTSUNNY   43  37  81 SW13      29.68R TC   6
MT. VERNON     CLOUDY   N/A N/A N/A NW8G23    29.67R
CENTRALIA*       N/A    N/A N/A N/A MISG        N/A
SALEM*         CLOUDY    45  36  70 W14       29.65R TC   7
METROPOLIS*    CLOUDY    44  37  78 SW12G21   29.71S TC   7
$$

ILZ067-068-072-073-078-083-087-091-101600-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  LGT RAIN  43  38  82 W13       29.62R TC   6
FLORA*         CLOUDY    45  36  70 NW17      29.64R TC   7
FAIRFIELD*     CLOUDY    43  37  80 SW6       29.65R TC   6
HARRISBURG*    CLOUDY    43  37  80 W9        29.68R TC   6
$$

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