593
ASUS43 KLOT 282301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 PM CDT MON SEP 28 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.
ILZ001-002-007-009-015-016-024-290000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 74 51 44 E5 30.02F TC 23
STERLING* CLEAR 73 47 39 NE5 30.05S TC 23
SAVANNA* CLEAR 75 54 47 NE3 30.03F TC 24
ILZ003-004-008-010-011-017-018-290000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 74 48 39 E3 30.05S TC 23
FREEPORT* CLEAR 75 54 47 CALM 30.06S TC 24
DE KALB* CLEAR 71 48 44 NE5 30.06R TC 22
ILZ005-006-012>014-019>023-290000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 68 51 54 NE9 30.04F TC 20
CHICAGO-MIDWAY PTCLDY 68 53 58 NE9 30.05S TC 20
AURORA CLEAR 72 49 44 E6 30.04R TC 22
JOLIET* CLEAR 73 58 58 NE8 30.04R TC 23
WAUKEGAN CLEAR 65 56 72 E5 30.05S TC 18
DUPAGE AIRPORT NOT AVBL
WHEELING CLEAR 67 57 70 E5 30.07S TC 19
ROMEOVILLE* CLEAR 70 57 64 NE13 30.05R TC 21
LANSING* CLEAR 66 53 63 NE7 30.06R TC 19
NORTHERLY ISL* N/A 66 57 72 NE3 N/A TC 19
LMZ740>746-290000-
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 65 65 30/ 4/ 6 1017.1R 1
WAUKEGAN HARBOR 66 65 20/ 4/ 6 1017.9F 1/ 3
WILMETTE BUOY 66 30/ 6/ 8 1020.0F 1/ 3
CHICAGO BUOY 66 64 40/ 4/ 6 1016.5F 1/ 3
HARRISON CRIB 65 30/ 4/ 5 N/A
NORTHERLY ISL 67 30/ 4/ 9 N/A
CALUMET HARBOR 65 10/ 6/ 10 1017.8
MICHIGAN CITY 67 360/ 6/ 6 1016.6F
MICH CITY BUOY 63 62 350/ 4/ 6 N/A 1/ 4
ST. JOSEPH BUOY 61 60 20/ 4/ 6 1018.3F 1/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-290000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 75 50 41 E8 30.02S TC 24
MACOMB* CLEAR 76 42 29 E6 30.05S TC 24
ILZ028>032-037-038-041>044-048-051>054-059>061-290000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 76 47 35 N3 30.04S TC 24
DECATUR PTCLDY 72 51 47 NE6 30.03R TC 22
PEORIA CLEAR 73 46 38 CALM 30.03S TC 23
SPRINGFIELD CLEAR 77 43 29 NW6 30.02S TC 25
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-290000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 75 43 31 CALM 30.03R TC 24
MATTOON PTCLDY 72 48 42 NE6 30.02R TC 22
ILZ079-100>102-290000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 79 41 25 VRB3 30.01S TC 26
CAHOKIA* CLEAR 79 45 29 CALM 30.00S TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-290000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 81 43 26 CALM 29.99S TC 27
EFFINGHAM* CLEAR 77 44 31 CALM 30.03R TC 25
MT. VERNON CLEAR 78 45 30 N3 30.00S TC 26
CENTRALIA* CLEAR 80 40 24 CALM 30.01R TC 27
SALEM* CLEAR 80 42 25 MISG 30.01R TC 27
ILZ067-068-072-073-078-083-087-091-290000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 78 44 29 NE6 30.00S TC 26
FAIRFIELD* CLEAR 79 43 27 NE3 30.00R TC 26
HARRISBURG* CLEAR 80 45 29 E5 30.00R TC 26
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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