978
ASUS43 KLOT 270809
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-270900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 60 54 80 E7 30.09F TC 16
STERLING* PTCLDY 49 48 97 E5 30.12F TC 9
SAVANNA* MOCLDY 53 50 89 NE3 30.12F TC 12
ILZ003-004-008-010-011-017-018-270900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 48 47 96 CALM 30.14F TC 9
FREEPORT* PTCLDY 48 47 95 CALM 30.14F TC 9
ROCHELLE* PTCLDY 47 47 99 E5 30.12F TC 9
DE KALB* CLEAR 48 48 100 E3 30.13F TC 9
ILZ005-006-012>014-019>023-270900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 51 48 89 CALM 30.11S TC 11
CHICAGO-MIDWAY PTCLDY 53 51 93 NW3 30.12S TC 12
AURORA PTCLDY 48 48 100 CALM 30.11F TC 9
JOLIET* PTCLDY 51 51 100 CALM 30.12S FOG TC 10
WAUKEGAN CLEAR 45 45 100 CALM 30.11F FOG TC 7
DUPAGE AIRPORT CLEAR 48 46 93 CALM 30.12F TC 9
KANKAKEE* PTCLDY 47 46 95 CALM 30.12S TC 9
WHEELING CLEAR 50 48 93 CALM 30.13F TC 10
ROMEOVILLE* PTCLDY 52 52 100 NE3 30.12S FOG TC 11
LANSING* PTCLDY 48 47 99 CALM 30.12F FOG TC 9
NORTHERLY ISL* N/A 58 55 90 E1 N/A TC 14
LMZ740>746-270900-
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 61 65 250/ 4/ 8 1018.5F 1/ 3
WAUKEGAN HARBOR 58 63 290/ 6/ 8 1019.3F 1/ 3
WILMETTE BUOY 64 90/ 8/ 12 1021.5F 1/ 3
CHICAGO BUOY 63 63 90/ 6/ 10 1018.4F 2/ 3
HARRISON CRIB 62 100/ 5/ 6 N/A
NORTHERLY ISL 58 90/ 3/ 5 N/A
CALUMET HARBOR 60 80/ 3/ 4 1019.8
MICHIGAN CITY 54 100/ 3/ 4 1019.3F
MICH CITY BUOY 58 62 100/ 4/ 8 N/A 1/ 3
ST. JOSEPH BUOY 53 53 50/ 4/ 4 1020.3F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-270900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 59 57 93 CALM 30.08R TC 15
GALESBURG* CLOUDY 56 56 100 CALM 30.10S TC 13
MACOMB* MOCLDY 56 56 100 CALM 30.10S TC 13
JACKSONVILLE* MOCLDY 58 58 100 CALM 30.08S TC 14
PITTSFIELD* DRIZZLE 59 58 96 CALM 30.09S TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-270900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 47 47 100 CALM 30.11F TC 9
BLOOMINGTON PTCLDY 51 50 96 NE7 30.11S TC 11
DECATUR PTCLDY 51 49 92 CALM 30.08F TC 11
PEORIA PTCLDY 56 51 84 E7 30.09S TC 13
LACON* PTCLDY 50 47 89 CALM 30.10F TC 10
LINCOLN* PTCLDY 55 51 85 NE3 30.08F TC 13
SPRINGFIELD MOCLDY 60 57 89 CALM 30.07S TC 16
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-270900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 53 47 79 E6 30.09F TC 12
RANTOUL* PTCLDY 53 48 83 NE5 30.10S TC 12
MATTOON PTCLDY 56 48 74 E3 30.06F TC 13
PARIS* PTCLDY 49 48 98 CALM 30.08F TC 9
ILZ079-100>102-270900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 56 55 94 CALM 30.07S TC 14
CAHOKIA* CLOUDY 59 58 96 CALM 30.06S TC 15
SPARTA* MOCLDY 58 56 93 CALM 30.06F TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-270900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 60 54 79 CALM 30.03F TC 16
EFFINGHAM* HAZE 58 51 79 NE3 30.08S VSB 1 TC 14
MARION PTCLDY 55 54 94 NE1 30.04F TC 13
MT. VERNON CLOUDY 60 55 83 CALM 30.05S TC 16
CENTRALIA* MOCLDY 60 56 88 CALM 30.05F TC 15
SALEM* CLOUDY 64 54 68 MISG 30.05F TC 18
METROPOLIS* PTCLDY 56 51 85 CALM 30.03F TC 13
ILZ067-068-072-073-078-083-087-091-270900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 56 49 77 NE7 30.05F TC 13
FLORA* MOCLDY 61 54 77 N3 30.06S TC 16
FAIRFIELD* MOCLDY 62 51 68 N3 30.05S TC 17
HARRISBURG* PTCLDY 56 53 89 CALM 30.04F TC 13
ROBINSON* PTCLDY 50 50 100 NW2 30.06F TC 10
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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