Regional Weather Roundup
Issued by NWS

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600
ASUS43 KLOT 160606
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 AM CDT SUN AUG 16 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.

ILZ001-002-007-009-015-016-024-160700-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLOUDY    73  72  96 W3        29.98S TC  23
6HR MIN TEMP:  72; 6HR MAX TEMP:  83; 6HR PCP:  0.89;

STERLING*      CLOUDY    73  73 100 SW8       30.00R TC  23
SAVANNA*       CLOUDY    76  75  97 NW3       29.99R FOG     TC  25
$$

ILZ003-004-008-010-011-017-018-160700-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       LGT RAIN  76  75  97 CALM      29.98F TC  24
6HR MIN TEMP:  75; 6HR MAX TEMP:  77; 6HR PCP:  0.03;

FREEPORT*      MOCLDY    74  73  96 CALM      30.00S TC  23
ROCHELLE*      MOCLDY    74  72  94 S9        29.99R TC  23
DE KALB*       CLOUDY    75  75 100 S7        30.00S TC  24
PERU*          RAIN      73  72  94 SW6       30.00F TC  23
$$

ILZ005-006-012>014-019>023-160700-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    77  75  93 S3        29.98S TC  25
6HR MIN TEMP:  77; 6HR MAX TEMP:  79;

CHICAGO-MIDWAY MOCLDY    77  75  93 S7        29.99R TC  25
6HR MIN TEMP:  77; 6HR MAX TEMP:  80;

AURORA         CLOUDY    73  72  96 SW10      29.99S TC  23
6HR MIN TEMP:  74; 6HR MAX TEMP:  79; 6HR PCP: TRACE;

WAUKEGAN       LGT RAIN  77  75  93 SW7       29.96F TC  25
6HR MIN TEMP:  73; 6HR MAX TEMP:  77; 6HR PCP:  0.79;

DUPAGE AIRPORT CLOUDY    76  75  97 S3        29.98S TC  24
6HR MIN TEMP:  75; 6HR MAX TEMP:  79; 6HR PCP: TRACE;

KANKAKEE*      MOCLDY    76  75  95 SW5       30.02S TC  25
WHEELING       CLOUDY    76  75  97 CALM      29.99S TC  24
6HR MIN TEMP:  74; 6HR MAX TEMP:  77;

ROMEOVILLE*    RAIN      73  73 100 SW13G29   30.02R FOG     TC  23
LANSING*         N/A    N/A N/A N/A MISG        N/A
NORTHERLY ISL*   N/A     77  73  87 S7          N/A  TC  25
$$

LMZ740>746-160700-
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            74 74  130/  2/  4 1016.1F         1/ 3
WILMETTE BUOY              74     340/  2/  2 1018.5R         1
CHICAGO BUOY               76 73              1014.3F         1
HARRISON CRIB              78     200/ 12/ 12   N/A
NORTHERLY ISL              77     190/  7/  8   N/A
CALUMET HARBOR             77     180/  4/  7 1015.6
MICHIGAN CITY              77     170/  8/ 11 1014.1F
MICH CITY BUOY             74 74  180/  6/  6   N/A           1
ST. JOSEPH BUOY            76 74  170/  6/  8 1016.5F         1
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-160700-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         MOCLDY    78  76  93 CALM      30.02S HX  81  TC  26
GALESBURG*     RAIN      72  72 100 S3        30.01F TC  22
MACOMB*        CLOUDY    74  74 100 S3        30.04S TC  24
JACKSONVILLE*  MOCLDY    79  79 100 SW3       30.02S HX  83  TC  26
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-160700-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PONTIAC        LGT RAIN  73  73 100 W7        30.02F TC  23
BLOOMINGTON    CLOUDY    76  50  40 S6        30.04S TC  24
DECATUR        MOCLDY    79  76  90 SW5       30.03S HX  83  TC  26
PEORIA         CLOUDY    74  73  97 CALM      30.01F TC  23
6HR MIN TEMP:  74; 6HR MAX TEMP:  82; 6HR PCP:  0.06;

LACON*         LGT RAIN  73  71  92 CALM      30.00S TC  23
LINCOLN*       LGT RAIN  80  80 100 CALM      30.02S HX  86  TC  27
SPRINGFIELD    MOCLDY    79  77  94 S3        30.02S HX  83  TC  26
6HR MIN TEMP:  79; 6HR MAX TEMP:  85;

TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-160700-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHAMPAIGN      PTCLDY    77  76  96 S5        30.03F TC  25
RANTOUL*       PTCLDY    75  75  98 S3        30.03F TC  24
MATTOON        PTCLDY    78  76  93 S6        30.03F HX  81  TC  26
PARIS*         FOG       73  72  98 CALM      30.04F VSB 1/2 TC  23
$$

ILZ079-100>102-160700-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALTON          MOCLDY    78  77  95 CALM      30.03F HX  81  TC  26
BELLEVILLE     PTCLDY    82  79  89 CALM      30.01S HX  93  TC  28
CAHOKIA*       PTCLDY    82  75  79 W5        30.02S HX  89  TC  28
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-160700-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL
CAIRO*         CLEAR     77  75  94 CALM      30.08R TC  25
EFFINGHAM*     PTCLDY    76  76  99 CALM      30.05F TC  25
MARION         CLEAR     80  72  76 S7        30.06F HX  83  TC  27
MT. VERNON     PTCLDY    78  74  87 CALM      30.04F HX  81  TC  26
SALEM*           N/A     82  75  81 MISG      30.04F HX  88  TC  28
METROPOLIS*    CLEAR     79  70  72 S5        30.08R HX  82  TC  26
$$

ILZ067-068-072-073-078-083-087-091-160700-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LAWRENCEVILLE  PTCLDY    79  76  90 S3        30.04F HX  83  TC  26
FLORA*         PTCLDY    77 N/A N/A CALM      30.04F TC  25
FAIRFIELD*     PTCLDY    78  73  86 S3        30.05S HX  80  TC  26
HARRISBURG*    CLEAR     78  74  87 CALM      30.07S HX  80  TC  25
ROBINSON*      MOCLDY    75  75 100 S2        30.03F FOG     TC  24
$$

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