309
ASUS43 KLOT 271410
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 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.
ILZ001-002-007-009-015-016-024-271500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 57 52 83 E3 30.13R TC 14
STERLING* PTSUNNY 56 55 97 E5 30.15R TC 13
SAVANNA* PTSUNNY 56 53 91 CALM 30.14S TC 13
ILZ003-004-008-010-011-017-018-271500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 59 55 87 VRB3 30.16S TC 15
FREEPORT* PTSUNNY 55 54 95 CALM 30.16S TC 13
ROCHELLE* MOSUNNY 56 55 98 CALM 30.15S TC 13
DE KALB* MOSUNNY 57 57 100 CALM 30.16S TC 14
PERU* MOSUNNY 57 54 88 E3 30.14S TC 14
ILZ005-006-012>014-019>023-271500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 56 56 100 CALM 30.14R FOG TC 13
CHICAGO-MIDWAY PTSUNNY 60 55 83 CALM 30.14R TC 16
AURORA MOSUNNY 57 56 96 E3 30.14S FOG TC 14
JOLIET* MOSUNNY 61 59 94 CALM 30.14S TC 16
WAUKEGAN SUNNY 60 57 89 N3 30.14S TC 16
DUPAGE AIRPORT FOG 53 53 100 VRB3 30.15R VSB 1/8 TC 12
KANKAKEE* SUNNY 58 52 83 CALM 30.15R TC 14
WHEELING SUNNY 58 55 90 CALM 30.15S TC 14
LANSING* MOSUNNY 53 53 100 CALM 30.14S FOG TC 12
NORTHERLY ISL* N/A 65 56 72 N5 N/A TC 18
LMZ740>746-271500-
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 60 64 320/ 6/ 8 1019.4 1
WAUKEGAN HARBOR 61 63 340/ 4/ 6 1020.2 1
WILMETTE BUOY 63 360/ 4/ 6 1022.7R 1/ 3
CHICAGO BUOY 64 63 10/ 4/ 6 1019.3 1/ 3
HARRISON CRIB 63 20/ 4/ 4 N/A
NORTHERLY ISL 64 CALM / 2 N/A
CALUMET HARBOR 63 CALM / 1 1020.3
MICHIGAN CITY 60 20/ 1/ 1 1019.3F
MICH CITY BUOY 58 62 60/ 2/ 4 N/A 1
ST. JOSEPH BUOY 52 53 30/ 4/ 4 1020.9F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-271500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 59 53 80 SE5 30.12S TC 15
GALESBURG* CLOUDY 58 53 85 CALM 30.15R TC 14
MACOMB* CLOUDY 60 59 99 W3 30.16R TC 15
JACKSONVILLE* CLOUDY 58 58 100 CALM 30.13S TC 14
PITTSFIELD* CLOUDY 60 58 92 CALM 30.14S TC 16
ILZ028>032-037-038-041>044-048-051>054-059>061-271500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 57 56 97 CALM 30.14S TC 14
BLOOMINGTON MOSUNNY 60 53 77 E3 30.14S TC 16
DECATUR MOSUNNY 58 52 80 E3 30.12S TC 14
PEORIA MOSUNNY 59 51 75 E3 30.13R TC 15
LACON* PTSUNNY 56 50 79 CALM 30.13S TC 14
LINCOLN* MOSUNNY 62 52 69 CALM 30.13R TC 17
SPRINGFIELD CLOUDY 64 52 64 VRB3 30.12R TC 18
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-271500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 58 49 72 E6 30.13S TC 14
RANTOUL* MOSUNNY 61 50 68 E3 30.13F TC 16
MATTOON SUNNY 58 51 78 VRB3 30.11S TC 14
PARIS* SUNNY 60 51 74 CALM 30.12S TC 15
ILZ079-100>102-271500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 61 57 88 VRB6 30.12R TC 16
BELLEVILLE CLOUDY 63 62 97 CALM 30.09R TC 17
CAHOKIA* CLOUDY 62 60 93 CALM 30.10S TC 17
SPARTA* LGT RAIN 61 58 91 N5 30.11S TC 16
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-271500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 63 55 77 CALM 30.09R TC 17
CAIRO* CLOUDY 64 56 74 CALM 30.08R TC 18
EFFINGHAM* MOSUNNY 63 49 60 E3 30.12S HAZE TC 17
MARION PTSUNNY 61 55 82 CALM 30.09R TC 16
MT. VERNON CLOUDY 65 53 65 CALM 30.10R TC 18
CENTRALIA* PTSUNNY 63 54 74 CALM 30.10S TC 17
SALEM* CLOUDY 65 53 65 MISG 30.10S TC 19
METROPOLIS* PTSUNNY 66 50 55 CALM 30.08R TC 19
ILZ067-068-072-073-078-083-087-091-271500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 60 50 69 NE5 30.10S TC 16
FLORA* N/A 63 52 67 E3 30.11R HAZE TC 17
FAIRFIELD* CLOUDY 65 49 54 E3 30.10R TC 19
HARRISBURG* CLOUDY 64 54 68 CALM 30.09S TC 18
ROBINSON* SUNNY 59 54 82 NE3 30.10S TC 15
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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