428
ASUS43 KLOT 290310
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 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.
ILZ001-002-007-009-015-016-024-290400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 72 68 87 E3 29.90R TC 22
STERLING* CLEAR 72 68 87 NE3 29.92R TC 22
SAVANNA* CLEAR 73 68 86 CALM 29.91R TC 23
ILZ003-004-008-010-011-017-018-290400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 71 59 65 E5 29.94R TC 22
FREEPORT* CLEAR 69 65 87 CALM 29.95R TC 20
ROCHELLE* CLEAR 68 61 78 NE5 29.94R TC 20
DE KALB* CLEAR 65 60 81 NE5 29.96R TC 19
PERU* CLEAR 73 63 68 E8 29.92R TC 23
ILZ005-006-012>014-019>023-290400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 68 56 65 N9 29.92R TC 20
CHICAGO-MIDWAY PTCLDY 70 57 63 N9 29.92R TC 21
AURORA CLEAR N/A N/A N/A E5 29.93R
JOLIET* CLEAR 69 56 61 NE5 29.92R TC 21
WAUKEGAN PTCLDY 66 59 78 N6 29.93R TC 19
DUPAGE AIRPORT CLEAR 67 53 61 NE8 29.93R TC 19
KANKAKEE* CLEAR 65 57 74 NE8 29.92R TC 18
WHEELING PTCLDY 66 57 72 N5 29.94R TC 19
ROMEOVILLE* CLOUDY 68 57 68 NE10 29.93R TC 20
NORTHERLY ISL* N/A 69 60 73 N9 N/A TC 21
LMZ740>746-290400-
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 66 1012.0 4/ 6
WAUKEGAN HARBOR 69 69 1014.1 3/ 6
WILMETTE BUOY 70 40/ 12/ 16 1015.5R 4/ 6
CHICAGO BUOY 72 69 20/ 14 1011.8 5/ 5
HARRISON CRIB 72 10/ 18/ 20 N/A
NORTHERLY ISL 69 340/ 11/ 14 N/A
CALUMET HARBOR 71 350/ 8/ 14 1012.8
BURNS HARBOR 1012.9R
MICHIGAN CITY 71 360/ 19/ 22 1010.7S
MICH CITY BUOY 72 73 10/ 17/ 23 N/A 6/ 7
ST. JOSEPH BUOY 71 71 10/ 14/ 19 1013.0R 7/ 7
ILZ025>027-034>036-040-047-049-050-058-095>099-290400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 76 72 87 NE3 29.90R TC 24
GALESBURG* CLEAR 70 66 87 CALM 29.93R TC 21
MACOMB* CLEAR 72 72 100 CALM 29.93R TC 22
JACKSONVILLE* PTCLDY 72 72 100 CALM 29.90R TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-290400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 69 60 73 MISG 29.92R TC 21
BLOOMINGTON CLEAR 71 68 90 NE3 29.92R TC 22
DECATUR CLEAR 72 67 84 NE3 29.90R TC 22
PEORIA CLEAR 73 68 84 CALM 29.91R TC 23
LACON* CLEAR 70 65 85 CALM 29.91R TC 21
LINCOLN* CLEAR 73 69 87 N5 29.90R TC 23
SPRINGFIELD CLEAR 72 71 97 CALM 29.89R TC 22
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-290400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 69 65 86 NE6 29.91R TC 21
DANVILLE* N/A 65 60 83 N8 29.90S TC 19
MATTOON CLEAR 69 67 93 N6 29.89R TC 21
PARIS* CLEAR 67 61 79 N3 29.89R TC 20
ILZ079-100>102-290400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 75 72 88 NE7 29.89R TC 24
BELLEVILLE PTCLDY 80 78 94 NE5 29.85R HX 88 TC 27
CAHOKIA* PTCLDY 80 73 79 NE8 29.86R HX 84 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-290400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 83 79 87 N6 29.81S HX 95 TC 29
EFFINGHAM* CLEAR 73 72 98 CALM 29.91R TC 23
MARION PTCLDY 79 68 69 NE9 29.85R HX 81 TC 26
MT. VERNON PTCLDY 74 71 91 N3 29.87R TC 23
CENTRALIA* PTCLDY 75 71 87 CALM 29.88R TC 24
SALEM* PTCLDY 73 71 95 MISG 29.88R FOG TC 23
METROPOLIS* MOCLDY 81 75 82 N5 29.83R HX 88 TC 27
ILZ067-068-072-073-078-083-087-091-290400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 73 70 90 N8 29.86R TC 23
FAIRFIELD* PTCLDY 74 70 88 N5 29.86R TC 23
HARRISBURG* PTCLDY 76 73 91 N5 29.85R TC 25
ROBINSON* CLOUDY 72 70 94 N5 29.86R FOG TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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