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

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125
ASUS43 KLOT 202206
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CDT MON JUL 20 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.

ILZ001-002-007-009-015-016-024-202300-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         SUNNY     83  73  72 SW16G24   29.77R HX  89  TC  28
STERLING*      SUNNY     81  70  69 SW7       29.79R HX  84  TC  27
SAVANNA*       SUNNY     81  69  67 S7        29.76R HX  84  TC  27
$$

ILZ003-004-008-010-011-017-018-202300-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       PTSUNNY   81  68  64 SW8       29.79R HX  84  TC  27
FREEPORT*      SUNNY     81  72  74 SW7       29.81R HX  85  TC  27
ROCHELLE*      SUNNY     81  65  58 SW8       29.79R HX  83  TC  27
DE KALB*       SUNNY     79  71  74 S12G18    29.80R HX  82  TC  26
$$

ILZ005-006-012>014-019>023-202300-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOSUNNY   82  65  56 S15G23    29.75F HAZE    HX  84
CHICAGO-MIDWAY PTSUNNY   81  66  60 SW15G25   29.75F HX  83  TC  27
AURORA         SUNNY     81  70  69 S12       29.77F SMOKE   HX  84
JOLIET*        MOSUNNY   82  69  64 SW10G18   29.78F HAZE    HX  85
WAUKEGAN       MOSUNNY   81  67  62 S15       29.74F HX  83  TC  27
DUPAGE AIRPORT MOSUNNY   80  69  69 S14       29.76F SMOKE   HX  83
KANKAKEE*      PTSUNNY   81  67  62 S9        29.80F HAZE    HX  83
WHEELING       MOSUNNY   81  66  60 SW14G22   29.76F HX  83  TC  27
LANSING*       PTSUNNY   80  64  57 S14       29.78F HX  81  TC  27
NORTHERLY ISL*   N/A     81  62  52 S14         N/A  HX  82  TC  27
$$

LMZ740>746-202300-
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            79 75              1008.0F         2/ 3
WAUKEGAN HARBOR            78 75              1008.9F         2/ 3
WILMETTE BUOY              78     220/ 12/ 17 1011.2F         1/ 3
CHICAGO BUOY               79 76  210/ 14/ 17 1006.9F         1/ 3
HARRISON CRIB              79     190/ 19/ 21   N/A
NORTHERLY ISL              80     180/ 16       N/A
CALUMET HARBOR             79     170/ 10/ 14 1008.5F
BURNS HARBOR                                  1009.1F
MICHIGAN CITY              79     180/ 12/ 17 1006.9F
MICH CITY BUOY             78 76  190/ 12/ 16   N/A           1/ 3
ST. JOSEPH BUOY            77 75  190/ 10/ 12 1009.5F         1/ 3
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-202300-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         SUNNY     85  74  69 SE12      29.81F HX  92  TC  29
GALESBURG*     SUNNY     82  73  74 S15       29.80R HX  86  TC  28
MACOMB*        SUNNY     81  75  81 SW12      29.83S HX  87  TC  27
JACKSONVILLE*  MOSUNNY   87  75  67 S10       29.80F HX  95  TC  30
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-202300-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BLOOMINGTON    MOSUNNY   81  71  71 S18       29.81F HX  85  TC  27
DECATUR        PTSUNNY   83  68  60 S9        29.82F HAZE    HX  86
PEORIA         SUNNY     85  71  63 SW16      29.79F HX  90  TC  29
LACON*         SUNNY     81  68  63 SW10G18   29.78S HX  84  TC  27
SPRINGFIELD    PTSUNNY   84  73  69 S12G22    29.79F HX  90  TC  29
TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-202300-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      CLOUDY    80  68  66 S10       29.82F HAZE    HX  83
DANVILLE*      CLOUDY    82  70  66 S7        29.82F HX  86  TC  28
MATTOON        PTSUNNY   81  70  69 S7        29.83F HAZE    HX  84
PARIS*         PTSUNNY   80  68  66 SW6       29.84F HAZE    HX  82
$$

ILZ079-100>102-202300-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          SUNNY     90  75  62 SE7       29.85F HX 100  TC  32
CAHOKIA*       MOSUNNY   92  74  55 E7        29.85F HX 101  TC  33
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-202300-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL
CAIRO*         PTSUNNY   92  80  68 CALM      29.88F HX 111  TC  33
EFFINGHAM*     PTSUNNY   86  69  57 S3        29.88F HX  90  TC  30
MT. VERNON     MOSUNNY   90  70  51 VRB5      29.87F HX  95  TC  32
CENTRALIA*     MOSUNNY   92  67  44 CALM      29.88F HX  95  TC  33
SALEM*         MOSUNNY   89  72  56 MISG      29.88F HX  96  TC  32
METROPOLIS*    MOSUNNY   91  74  58 CALM      29.89S HX 101  TC  33
$$

ILZ067-068-072-073-078-083-087-091-202300-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  PTSUNNY   84  71  65 NW7       29.88F HX  89  TC  29
FLORA*         MOSUNNY   86  72  62 N6        29.88F HX  92  TC  30
FAIRFIELD*     MOSUNNY   90  70  52 CALM      29.88F HX  95  TC  32
ROBINSON*      PTSUNNY   82  70  65 NW5       29.87F HAZE    HX  86
$$

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