275
ASUS43 KLOT 281501
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM 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.
ILZ001-002-007-009-015-016-024-281600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 79 70 74 NE9 29.85R HX 82 TC 26
STERLING* MOSUNNY 78 69 73 NE10 29.88R HX 80 TC 26
SAVANNA* MOSUNNY 75 67 75 NE5 29.88R TC 24
ILZ003-004-008-010-011-017-018-281600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 76 64 66 N9 29.87R TC 24
FREEPORT* MOSUNNY 74 70 86 NE7 29.89R TC 24
DE KALB* MOSUNNY 73 66 79 NE12G20 29.86R TC 23
ILZ005-006-012>014-019>023-281600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 71 64 78 NE16 29.83S TC 22
CHICAGO-MIDWAY CLOUDY 69 65 86 N15 29.82S TC 21
AURORA MOSUNNY 73 66 78 NE8 29.83S TC 23
JOLIET* CLOUDY 72 68 89 NE8 29.84S TC 22
WAUKEGAN PTSUNNY N/A N/A N/A N14 29.84R
DUPAGE AIRPORT MOSUNNY 73 65 75 NE14 29.83S TC 23
KANKAKEE* CLOUDY 72 68 87 N8G17 29.83R TC 22
WHEELING PTSUNNY 71 64 78 NE10 29.85S TC 22
NORTHERLY ISL* N/A 68 64 87 N14 N/A TC 20
LMZ740>746-281600-
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 56 47 1002.8R 4/ 6
WAUKEGAN HARBOR 65 64 1011.4R 4/ 7
WILMETTE BUOY 68 30/ 17/ 21 1012.5R 5/ 7
CHICAGO BUOY 69 67 10/ 16 1009.0R 4/ 6
HARRISON CRIB 69 10/ 21/ 23 N/A
NORTHERLY ISL 68 10/ 12/ 15 N/A
CALUMET HARBOR 69 340/ 12/ 16 1010.2
BURNS HARBOR 1010.2R
MICHIGAN CITY 70 10/ 18/ 20 1008.0R
MICH CITY BUOY 70 73 10/ 17/ 23 N/A 5/ 6
ST. JOSEPH BUOY 69 71 360/ 12/ 17 1010.3R 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-281600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 81 75 82 N8 29.84S HX 87 TC 27
GALESBURG* MOSUNNY 79 71 78 NE9 29.87R HX 82 TC 26
MACOMB* MOSUNNY 82 76 84 CALM 29.87S HX 88 TC 28
JACKSONVILLE* MOSUNNY 81 77 88 N6 29.82S HX 88 TC 27
ILZ028>032-037-038-041>044-048-051>054-059>061-281600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 79 71 76 NE12G17 29.84R HX 82 TC 26
DECATUR MOSUNNY 81 73 76 NE13 29.81R HX 86 TC 27
PEORIA SUNNY 81 68 64 NE12 29.84R HX 84 TC 27
LACON* MOSUNNY 77 67 71 N6 29.85R TC 25
LINCOLN* MOSUNNY 82 74 77 N10 29.82R HX 88 TC 28
SPRINGFIELD MOSUNNY 82 75 79 N12 29.81S HX 89 TC 28
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-281600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 79 72 79 N13 29.81R HX 82 TC 26
DANVILLE* CLOUDY 74 69 83 N16 29.81R TC 23
MATTOON PTSUNNY 80 74 81 N12 29.78R HX 85 TC 27
ILZ079-100>102-281600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 86 77 74 NW9 29.80S HX 97 TC 30
BELLEVILLE MOSUNNY 89 80 74 N6 29.77S HX 105 TC 32
CAHOKIA* PTSUNNY 87 76 69 N8 29.79S HX 97 TC 31
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-281600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 88 77 70 NW7 29.78F HX 100 TC 31
CAIRO* MOSUNNY 88 81 79 W9 29.80F HX 105 TC 31
EFFINGHAM* PTSUNNY 83 79 88 NW9 29.79S HX 94 TC 28
MT. VERNON MOSUNNY 87 76 69 VRB5 29.78R HX 97 TC 31
CENTRALIA* SUNNY 86 77 74 CALM 29.78S HX 97 TC 30
SALEM* N/A 85 79 80 MISG N/A HX 98 TC 30
ILZ067-068-072-073-078-083-087-091-281600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FAIRFIELD* SUNNY 85 75 73 NW7 29.76S HX 93 TC 29
HARRISBURG* MOSUNNY 88 78 72 NW7 29.77S HX 101 TC 31
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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