278
ASUS43 KLOT 270912
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT MON JUL 27 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.
ILZ001-002-007-009-015-016-024-271000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 79 78 97 CALM 29.80S HX 83 TC 26
STERLING* CLOUDY 80 80 100 VRB3 29.83S HX 89 TC 27
SAVANNA* FOG 75 75 98 CALM 29.81S VSB 1/4 TC 24
ILZ003-004-008-010-011-017-018-271000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD FOG 78 78 100 S7 29.84S VSB 1/4 HX 81
FREEPORT* CLOUDY 79 77 95 S3 29.84S VSB 1/2 HX 83
ROCHELLE* FOG 78 77 94 S3 29.84F VSB 1/2 HX 82
DE KALB* FOG 77 77 100 SW9 29.85F VSB 1/4 TC 25
PERU* FOG 79 79 100 S6 29.84S VSB 1/4 HX 83
ILZ005-006-012>014-019>023-271000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 79 77 94 SW8 29.83S FOG HX 83
CHICAGO-MIDWAY CLOUDY 78 77 96 SW6 29.83F HX 81 TC 26
AURORA FOG N/A N/A N/A S5 29.84F VSB 1/4
JOLIET* MOCLDY 78 78 100 S3 29.84F FOG HX 80
WAUKEGAN CLOUDY 79 79 100 SW5 29.83R FOG HX 84
DUPAGE AIRPORT FOG 78 78 100 SW7 29.84S VSB 1/2 HX 81
KANKAKEE* PTCLDY 74 73 95 SW6 29.87F FOG TC 23
WHEELING CLOUDY 80 78 94 W8 29.84F HX 88 TC 27
ROMEOVILLE* CLOUDY 77 77 100 S6 29.85F FOG TC 25
LANSING* CLOUDY 75 75 100 SW7 29.85F FOG TC 24
NORTHERLY ISL* N/A 78 75 90 SW8 N/A HX 81 TC 26
LMZ740>746-271000-
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 76 70 1010.7 0
WAUKEGAN HARBOR 78 71 1011.4 1
WILMETTE BUOY 78 220/ 6/ 12 1013.5R 1
CHICAGO BUOY 78 74 240/ 10 1009.2 1
HARRISON CRIB 80 230/ 10/ 11 N/A
NORTHERLY ISL 78 240/ 7/ 9 N/A
CALUMET HARBOR 77 210/ 7/ 11 1010.7
BURNS HARBOR 1010.8S
MICHIGAN CITY 77 170/ 11/ 15 1008.4S
MICH CITY BUOY 76 76 200/ 6/ 8 N/A 1
ST. JOSEPH BUOY 74 73 190/ 4/ 4 1011.6R 1
ILZ025>027-034>036-040-047-049-050-058-095>099-271000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 78 76 93 SW5 29.84S HX 81 TC 26
GALESBURG* CLEAR 78 78 100 CALM 29.83F FOG HX 81
MACOMB* CLEAR 76 76 100 CALM 29.85S TC 24
JACKSONVILLE* CLEAR 80 80 100 W5 29.84R HX 86 TC 27
ILZ028>032-037-038-041>044-048-051>054-059>061-271000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC FOG 73 73 100 MISG 29.86S VSB 1 TC 23
BLOOMINGTON FOG 77 77 100 S8 29.88R VSB 1/2 TC 25
DECATUR CLOUDY 80 77 90 S9 29.88R HX 87 TC 27
PEORIA CLEAR 79 78 97 CALM 29.84S FOG HX 83
LACON* PTCLDY 77 75 94 CALM 29.83S FOG TC 25
LINCOLN* PTCLDY 78 78 100 CALM 29.86R FOG HX 81
SPRINGFIELD CLEAR 76 74 93 E5 29.85R TC 24
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-271000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 75 75 100 SE5 29.88R FOG TC 24
DANVILLE* CLOUDY 72 72 98 CALM 29.89R VSB<1/4 TC 22
MATTOON MOCLDY 76 73 91 S9 29.87R TC 24
PARIS* FOG 73 72 97 CALM 29.90R VSB 1/4 TC 23
ILZ079-100>102-271000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 81 78 91 CALM 29.87R HX 88 TC 27
BELLEVILLE CLOUDY 82 81 96 SE14G26 29.88R HX 96 TC 28
CAHOKIA* PTCLDY 81 77 88 CALM 29.85R HX 88 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-271000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 77 72 85 E20G28 30.01R TC 25
EFFINGHAM* LGT RAIN 71 71 99 E12G17 29.92R TC 22
MARION CLOUDY 73 67 83 SE9 29.99S TC 23
MT. VERNON MOCLDY 73 68 84 S14 29.93F TC 23
CENTRALIA* PTCLDY 75 70 84 SE14G22 29.93R TC 24
SALEM* CLOUDY 76 71 85 MISG 29.91S TC 25
METROPOLIS* LGT RAIN 69 69 98 E6 30.02F TC 21
ILZ067-068-072-073-078-083-087-091-271000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FAIRFIELD* CLOUDY 71 68 90 S13 29.91F TC 22
HARRISBURG* MOCLDY 69 69 100 NE6 30.02R TC 21
ROBINSON* PTCLDY 72 72 100 SW5 29.88R TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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