440
ASUS43 KLOT 290408
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT TUE JUL 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.
ILZ001-002-007-009-015-016-024-290500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 72 68 87 CALM 29.92R TC 22
STERLING* CLEAR 69 67 93 E9 29.94R TC 21
SAVANNA* CLEAR 70 65 85 E3 29.93R TC 21
ILZ003-004-008-010-011-017-018-290500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 69 57 65 E5 29.96R TC 21
FREEPORT* CLEAR 67 64 90 E3 29.96R TC 19
ROCHELLE* CLEAR 67 55 65 E6 29.95S TC 20
DE KALB* CLEAR 65 59 82 NE3 29.96S TC 18
PERU* CLEAR 70 61 73 E6 29.94R TC 21
ILZ005-006-012>014-019>023-290500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 68 58 70 N10 29.93R TC 20
CHICAGO-MIDWAY PTCLDY 70 59 68 NE9 29.92S TC 21
AURORA CLEAR N/A N/A N/A NE5 29.93S
JOLIET* CLEAR 69 56 64 NE5 29.93S TC 21
WAUKEGAN CLEAR 65 59 81 N3 29.93S TC 18
DUPAGE AIRPORT CLEAR 66 55 67 NE8 29.93S TC 19
KANKAKEE* CLEAR 64 57 80 NE8 29.93R TC 18
WHEELING PTCLDY 65 59 81 N5 29.95R TC 18
ROMEOVILLE* CLOUDY 68 59 73 N12 29.94R TC 20
NORTHERLY ISL* N/A 69 60 73 N10 N/A TC 21
LMZ740>746-290500-
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 67 1011.9F 3/ 6
WAUKEGAN HARBOR 68 68 1014.2R 3/ 6
WILMETTE BUOY 70 50/ 12/ 16 1015.9R 4/ 6
CHICAGO BUOY 72 70 10/ 14 1012.4R 5/ 7
HARRISON CRIB 72 10/ 17/ 19 N/A
NORTHERLY ISL 69 350/ 9/ 14 N/A
CALUMET HARBOR 71 340/ 8/ 14 1013.4R
BURNS HARBOR 1013.5R
MICHIGAN CITY 71 10/ 19/ 22 1011.0R
MICH CITY BUOY 72 73 10/ 17/ 21 N/A 6/ 7
ST. JOSEPH BUOY 71 71 10/ 14/ 17 1013.4R 7/ 7
ILZ025>027-034>036-040-047-049-050-058-095>099-290500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 75 72 90 NE3 29.91R TC 24
GALESBURG* CLEAR 68 68 100 CALM 29.94R TC 20
MACOMB* PTCLDY 69 69 100 CALM 29.95R TC 20
JACKSONVILLE* PTCLDY 72 72 100 CALM 29.91R TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-290500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 65 60 81 MISG 29.94R TC 19
BLOOMINGTON CLEAR 68 65 90 E7 29.95R TC 20
DECATUR CLEAR 68 66 93 NE6 29.92R TC 20
PEORIA CLEAR 72 68 87 CALM 29.92R TC 22
LACON* CLEAR 68 65 89 CALM 29.92R TC 20
LINCOLN* CLEAR 71 71 100 CALM 29.92R TC 22
SPRINGFIELD PTCLDY 71 70 96 N5 29.91R TC 22
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-290500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 68 59 73 NE10 29.92R TC 20
DANVILLE* N/A 63 60 90 NW3 29.91S TC 17
MATTOON CLEAR 68 66 93 NE6 29.90R TC 20
PARIS* CLEAR 66 60 82 N3 29.92R TC 19
ILZ079-100>102-290500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 74 70 87 CALM 29.90R TC 24
CAHOKIA* CLEAR 78 73 84 NE5 29.88R HX 81 TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-290500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 83 79 89 N5 29.83R HX 94 TC 28
EFFINGHAM* CLEAR 71 71 100 CALM 29.91S TC 21
MARION PTCLDY 76 71 84 N9 29.87R TC 24
MT. VERNON CLEAR 73 71 93 N6 29.87S TC 23
CENTRALIA* CLEAR 74 71 89 CALM 29.89R TC 23
SALEM* CLEAR 72 72 98 MISG 29.89R TC 22
METROPOLIS* PTCLDY 79 74 82 N3 29.84R HX 83 TC 26
ILZ067-068-072-073-078-083-087-091-290500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 71 68 90 N8 29.87R TC 22
FAIRFIELD* CLEAR 73 70 89 N7 29.87S TC 23
HARRISBURG* PTCLDY 74 73 95 N3 29.86S TC 24
ROBINSON* PTCLDY 70 68 94 NW5 29.87S FOG TC 21
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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