594
ASUS43 KLOT 270410
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT SAT SEP 26 2026
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR S TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-270500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 58 56 93 CALM 30.10R TC 14
STERLING* MOCLDY 56 52 86 E5 30.13R TC 13
SAVANNA* CLOUDY 62 51 67 E3 30.12R TC 17
ILZ003-004-008-010-011-017-018-270500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 56 49 77 E5 30.15S TC 13
FREEPORT* CLOUDY 55 53 90 E6 30.15S TC 13
ROCHELLE* MOCLDY 55 50 82 E5 30.14S TC 13
DE KALB* PTCLDY 52 49 89 E7 30.15S TC 11
PERU* MOCLDY 57 52 82 E7 30.12S TC 14
ILZ005-006-012>014-019>023-270500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 55 48 77 NE3 30.14S TC 13
CHICAGO-MIDWAY PTCLDY 57 51 80 CALM 30.14S TC 14
AURORA CLEAR 52 49 89 E3 30.14S TC 11
JOLIET* PTCLDY 56 52 86 CALM 30.14S TC 14
WAUKEGAN PTCLDY 48 48 100 CALM 30.15R TC 9
DUPAGE AIRPORT CLEAR 51 48 89 N3 30.14S TC 11
KANKAKEE* PTCLDY 51 49 94 NE6 30.14S TC 11
WHEELING PTCLDY 51 50 96 CALM 30.16S TC 11
ROMEOVILLE* PTCLDY 54 52 94 NE7 30.14S TC 12
LANSING* CLEAR 51 49 93 CALM 30.15S TC 11
NORTHERLY ISL* N/A 61 54 77 E5 N/A TC 16
LMZ740>746-270500-
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 64 64 50/ 10/ 14 1019.5 1/ 3
WAUKEGAN HARBOR 64 64 50/ 8/ 12 1020.3 1/ 3
WILMETTE BUOY 64 90/ 8/ 12 1022.5R 1/ 3
CHICAGO BUOY 63 63 80/ 8/ 10 1019.4 2/ 3
HARRISON CRIB 63 80/ 9/ 10 N/A
NORTHERLY ISL 60 60/ 6/ 8 N/A
CALUMET HARBOR 61 60/ 4/ 6 1020.7
MICHIGAN CITY 59 40/ 10/ 10 1019.5F
MICH CITY BUOY 59 61 60/ 12/ 14 N/A 1/ 3
ST. JOSEPH BUOY 54 52 40/ 2/ 4 1021.2S 1
ILZ025>027-034>036-040-047-049-050-058-095>099-270500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 60 56 86 CALM 30.09R TC 16
GALESBURG* MOCLDY 56 55 97 CALM 30.12S TC 14
MACOMB* CLOUDY 58 58 100 CALM 30.12S TC 14
JACKSONVILLE* PTCLDY 56 56 100 CALM 30.10S TC 14
PITTSFIELD* MOCLDY 60 56 87 CALM 30.10S TC 16
ILZ028>032-037-038-041>044-048-051>054-059>061-270500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 56 52 85 E5 30.12S TC 13
BLOOMINGTON MOCLDY 57 51 80 NE7 30.12S TC 14
DECATUR MOCLDY 60 51 72 E3 30.10R TC 16
PEORIA MOCLDY 64 54 69 NE6 30.09S TC 18
LACON* PTCLDY 58 49 71 E10 30.10S TC 15
LINCOLN* MOCLDY 64 56 75 CALM 30.09F TC 18
SPRINGFIELD CLOUDY 63 58 83 CALM 30.09S TC 17
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-270500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 58 51 78 E7 30.10S TC 14
RANTOUL* PTCLDY 58 49 74 NE3 30.11S TC 14
MATTOON PTCLDY 56 51 84 NE3 30.08S TC 13
PARIS* PTCLDY 53 51 93 CALM 30.10S TC 12
ILZ079-100>102-270500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 58 56 92 CALM 30.08S TC 14
CAHOKIA* PTCLDY 57 57 100 CALM 30.06F FOG TC 14
SPARTA* PTCLDY 56 50 80 CALM 30.08F TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-270500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 62 53 72 CALM 30.06S TC 16
EFFINGHAM* MOCLDY 59 56 89 CALM 30.11S TC 15
MARION MOCLDY 63 52 67 N2 30.07F TC 17
MT. VERNON MOCLDY 58 56 93 CALM 30.08S TC 14
CENTRALIA* MOCLDY 60 57 91 CALM 30.08S TC 15
SALEM* MOCLDY 63 56 80 MISG 30.09R TC 17
METROPOLIS* MOCLDY 61 51 69 CALM 30.06F TC 16
ILZ067-068-072-073-078-083-087-091-270500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 58 54 86 CALM 30.08S TC 14
FLORA* MOCLDY 63 55 77 N3 30.09R TC 17
FAIRFIELD* CLOUDY 63 53 69 CALM 30.08S TC 17
HARRISBURG* CLOUDY 64 52 65 CALM 30.07S TC 18
ROBINSON* PTCLDY 54 54 100 NW3 30.08S TC 12
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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