641
ASUS43 KLOT 311101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CDT FRI JUL 31 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.
ILZ001-002-007-009-015-016-024-311200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE LGT RAIN 70 64 81 S8 29.91F TC 21
STERLING* MOCLDY 67 65 93 E5 29.96F TC 19
SAVANNA* MOCLDY 69 62 78 SE6 29.94S TC 21
ILZ003-004-008-010-011-017-018-311200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 65 61 87 SE5 29.98F TC 18
FREEPORT* MOCLDY 65 64 94 SE3 29.98F TC 19
ILZ005-006-012>014-019>023-311200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 71 62 73 S6 29.99S TC 22
CHICAGO-MIDWAY MOCLDY 71 62 73 S3 29.99F TC 22
AURORA MOCLDY 65 63 93 SE5 29.99S TC 18
JOLIET* PTCLDY 65 65 100 CALM 30.00F TC 18
WAUKEGAN PTCLDY 63 62 97 CALM 29.98F TC 17
DUPAGE AIRPORT MOCLDY 65 63 93 CALM 29.99S TC 18
KANKAKEE* PTCLDY 64 62 94 CALM 30.02S TC 18
WHEELING PTCLDY 68 63 84 CALM 30.01S TC 20
ROMEOVILLE* CLEAR 64 64 100 S5 30.01S TC 18
LANSING* CLEAR 64 63 96 CALM 30.01S TC 18
NORTHERLY ISL* N/A 70 62 76 SW1 N/A TC 21
LMZ740>746-311200-
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 69 80/ 2/ 4 1015.1F 1
WAUKEGAN HARBOR 70 70 CALM / 2 1015.9F 0
WILMETTE BUOY 72 150/ 2/ 4 1018.4F 0
CHICAGO BUOY 73 72 1014.7F 1
HARRISON CRIB 73 170/ 7/ 7 N/A
NORTHERLY ISL 71 140/ 2/ 5 N/A
CALUMET HARBOR 70 170/ 4/ 5 1016.0
BURNS HARBOR 1016.6F
MICHIGAN CITY 70 150/ 8/ 9 1014.8F
MICH CITY BUOY 71 73 170/ 6/ 8 N/A 0
ST. JOSEPH BUOY 70 72 140/ 4/ 6 1017.1F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-311200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 72 67 84 S9 29.90F TC 22
GALESBURG* CLOUDY 70 63 77 SE5 29.94F TC 21
MACOMB* CLOUDY 69 66 89 CALM 29.94F TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-311200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOCLDY 65 63 93 S7 30.00F TC 18
DECATUR PTCLDY 66 61 84 S7 29.99F TC 19
PEORIA MOCLDY 70 61 73 SE5 29.95F TC 21
LINCOLN* MOCLDY 66 64 91 SE3 29.99R TC 19
SPRINGFIELD MOCLDY 71 62 73 S7 29.97S TC 22
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-311200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 62 61 96 SE5 30.01S TC 17
MATTOON PTCLDY 64 61 90 SE6 30.00S TC 18
ILZ079-100>102-311200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CAHOKIA* MOCLDY 71 65 81 S5 29.97R TC 22
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-311200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* PTCLDY 65 65 100 E3 30.02S TC 18
MARION PTCLDY 65 64 98 CALM 30.00F TC 18
MT. VERNON PTCLDY 62 62 100 CALM 30.00S FOG TC 17
CENTRALIA* PTCLDY 66 63 89 CALM 29.99S TC 19
SALEM* PTCLDY 69 64 85 MISG 29.99F TC 20
ILZ067-068-072-073-078-083-087-091-311200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 66 65 96 CALM 30.01S TC 19
FAIRFIELD* PTCLDY 63 62 97 CALM 30.00F TC 17
HARRISBURG* CLEAR 62 62 100 CALM 30.01S FOG TC 17
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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