651
ASUS43 KLOT 271008
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 AM CDT SUN SEP 27 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.
ILZ001-002-007-009-015-016-024-271100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 58 53 84 E7 30.08S TC 14
STERLING* PTCLDY 49 49 100 E5 30.12R TC 9
SAVANNA* PTCLDY 51 49 95 CALM 30.11S TC 11
ILZ003-004-008-010-011-017-018-271100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 47 47 100 CALM 30.14R TC 8
FREEPORT* N/A 47 46 95 CALM 30.14S VSB 3/4 TC 9
ROCHELLE* PTCLDY 46 46 100 CALM 30.12S TC 8
DE KALB* FOG 47 47 100 CALM 30.13S VSB 1 TC 8
ILZ005-006-012>014-019>023-271100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 50 48 93 CALM 30.11R TC 10
CHICAGO-MIDWAY PTCLDY 51 50 96 CALM 30.11R TC 11
AURORA CLEAR 47 47 100 CALM 30.11S FOG TC 8
JOLIET* PTCLDY 48 48 100 CALM 30.11S FOG TC 9
WAUKEGAN CLEAR 45 45 100 CALM 30.11S TC 7
DUPAGE AIRPORT CLEAR 46 45 96 N3 30.12R TC 8
KANKAKEE* PTCLDY 47 46 95 CALM 30.11S TC 9
WHEELING PTCLDY 48 48 100 CALM 30.13R TC 9
ROMEOVILLE* CLEAR 50 50 100 NE5 30.12R FOG TC 10
LANSING* PTCLDY 45 45 99 CALM 30.11S TC 7
NORTHERLY ISL* N/A 58 54 86 NE5 N/A TC 14
LMZ740>746-271100-
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 59 64 240/ 6/ 8 1018.4S 1/ 3
WAUKEGAN HARBOR 57 63 310/ 6/ 8 1019.2S 1/ 4
WILMETTE BUOY 63 70/ 10/ 14 1021.2S 1/ 3
CHICAGO BUOY 63 63 80/ 6/ 10 1018.2S 2/ 3
HARRISON CRIB 62 80/ 2/ 3 N/A
NORTHERLY ISL 59 50/ 5/ 6 N/A
CALUMET HARBOR 59 20/ 3/ 5 1019.5
MICHIGAN CITY 51 90/ 2/ 2 1019.1R
MICH CITY BUOY 58 62 80/ 4/ 6 N/A 1/ 3
ST. JOSEPH BUOY 52 53 20/ 4/ 4 1020.2R 1
ILZ025>027-034>036-040-047-049-050-058-095>099-271100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 58 54 86 CALM 30.07S TC 14
GALESBURG* CLOUDY 58 54 87 E3 30.09S TC 14
MACOMB* CLOUDY 57 57 100 CALM 30.10S TC 14
JACKSONVILLE* CLOUDY 60 60 100 NE3 30.07S TC 16
PITTSFIELD* DRIZZLE 59 58 98 CALM 30.09S TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-271100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 46 46 100 CALM 30.11S TC 8
BLOOMINGTON PTCLDY 49 49 100 NE8 30.10S TC 9
DECATUR PTCLDY 51 48 89 CALM 30.09R TC 11
PEORIA PTCLDY 54 50 86 E8 30.09R TC 12
LACON* PTCLDY 49 46 92 CALM 30.10R TC 9
LINCOLN* PTCLDY 53 51 92 CALM 30.09R TC 12
SPRINGFIELD CLOUDY 60 51 72 E6 30.07R TC 16
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-271100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 52 47 83 E5 30.09R TC 11
RANTOUL* PTCLDY 50 48 92 N3 30.10R TC 10
MATTOON PTCLDY 51 47 86 CALM 30.07R TC 11
PARIS* PTCLDY 47 46 97 CALM 30.08R TC 8
ILZ079-100>102-271100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 59 55 85 CALM 30.06S TC 15
CAHOKIA* CLOUDY 59 58 96 CALM 30.05S TC 15
SPARTA* CLOUDY 58 56 96 CALM 30.06R TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-271100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 60 55 84 CALM 30.03S TC 15
EFFINGHAM* MOCLDY 56 50 82 CALM 30.09R TC 13
MARION MOCLDY 54 54 100 VRB1 30.04S TC 12
MT. VERNON MOCLDY 59 55 87 N3 30.05R TC 15
CENTRALIA* MOCLDY 59 56 91 CALM 30.06R TC 15
SALEM* MOCLDY 64 53 69 MISG 30.05S TC 18
METROPOLIS* MOCLDY 54 54 97 CALM 30.03S TC 12
ILZ067-068-072-073-078-083-087-091-271100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 53 49 86 NE6 30.06R TC 12
FLORA* CLOUDY 59 52 77 NE3 30.06R TC 15
FAIRFIELD* MOCLDY 61 51 70 NE3 30.05R TC 16
HARRISBURG* MOCLDY 58 55 91 CALM 30.04S TC 14
ROBINSON* PTCLDY 46 46 100 N2 30.06S TC 8
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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