033
ASUS43 KLOT 170506
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 AM CDT MON AUG 17 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.
ILZ001-002-007-009-015-016-024-170600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 68 66 93 W5 30.02R TC 20
STERLING* CLEAR 68 66 93 CALM 30.02R TC 20
SAVANNA* CLEAR 68 63 83 N5 30.02R TC 20
ILZ003-004-008-010-011-017-018-170600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 68 62 81 N8 30.01R TC 20
FREEPORT* CLEAR 65 64 96 N5 30.03S TC 18
ROCHELLE* CLEAR 67 63 88 CALM 30.02R TC 19
DE KALB* CLEAR 66 64 93 NW5 30.01R TC 19
PERU* CLOUDY 72 68 88 NW6 30.01R TC 22
ILZ005-006-012>014-019>023-170600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 72 62 71 N9 29.97R TC 22
CHICAGO-MIDWAY MOCLDY 74 64 71 N10 29.96R TC 23
AURORA CLEAR 67 66 97 NW6 29.99R TC 19
JOLIET* CLEAR 71 71 99 CALM 29.98R TC 22
WAUKEGAN PTCLDY 69 62 78 NW3 29.97R TC 21
DUPAGE AIRPORT CLEAR 70 63 78 N9 29.98R TC 21
KANKAKEE* MOCLDY 73 71 93 W5 29.97S TC 23
WHEELING CLOUDY 72 61 68 N5 29.99R TC 22
LANSING* PTCLDY 73 67 81 NE8 29.97R TC 23
NORTHERLY ISL* N/A 73 62 68 NW12 N/A TC 23
LMZ740>746-170600-
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 72 74 310/ 12/ 16 1014.5 2/ 3
WAUKEGAN HARBOR 72 74 300/ 12/ 16 1015.4 1/ 3
WILMETTE BUOY 74 30/ 12/ 16 1017.9R 2/ 3
CHICAGO BUOY 75 73 1013.7 2/ 3
HARRISON CRIB 75 350/ 16/ 18 N/A
NORTHERLY ISL 74 340/ 11/ 15 N/A
CALUMET HARBOR 75 350/ 6/ 10 1014.8
MICHIGAN CITY 75 10/ 18/ 20 1012.2S
MICH CITY BUOY 75 74 340/ 14/ 21 N/A 2/ 3
ST. JOSEPH BUOY 74 74 350/ 12/ 14 1014.9R 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-170600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 71 70 96 NW5 30.04R TC 22
GALESBURG* CLEAR 69 68 95 NW5 30.04R TC 21
MACOMB* CLEAR 71 71 100 NW6 30.05R TC 22
JACKSONVILLE* CLOUDY 74 74 100 CALM 30.02S TC 23
ILZ028>032-037-038-041>044-048-051>054-059>061-170600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 74 74 100 NW5 29.99R TC 24
BLOOMINGTON MOCLDY 75 75 100 NW6 30.00S TC 24
DECATUR CLOUDY 76 74 93 SW5 30.00S TC 24
PEORIA CLOUDY 74 70 87 N8 30.00R TC 23
LACON* MOCLDY 73 66 80 N3 30.00R TC 23
LINCOLN* CLOUDY 76 76 100 CALM 30.00R TC 25
SPRINGFIELD MOCLDY 75 74 96 W3 30.01S TC 24
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-170600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 73 73 100 W5 29.99S TC 23
RANTOUL* LGT RAIN 73 73 99 W3 29.99R TC 23
MATTOON RAIN 75 73 93 W5 30.00R FOG TC 24
ILZ079-100>102-170600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON TSTM 75 73 96 CALM 30.03S TC 24
CAHOKIA* TSTM 74 72 93 N9 30.00F TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-170600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 85 77 75 CALM 29.96S HX 95 TC 30
EFFINGHAM* LGT RAIN 76 76 99 NW6 30.01F TC 24
MARION MOCLDY 85 74 69 NW6 29.98R HX 92 TC 29
MT. VERNON TSTM 75 73 94 W9 30.05R TC 24
CENTRALIA* TSTM 75 73 95 CALM 30.06R TC 24
SALEM* TSTM 75 74 96 MISG 30.05R TC 24
METROPOLIS* PTCLDY 84 73 69 S3 29.97S HX 90 TC 29
ILZ067-068-072-073-078-083-087-091-170600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 78 76 93 S3 29.98R HX 81 TC 26
FLORA* LGT RAIN 77 77 100 CALM 30.00R TC 25
FAIRFIELD* CLOUDY 80 74 81 N12G17 29.99R HX 85 TC 27
HARRISBURG* MOCLDY 80 77 93 CALM 29.96R HX 85 TC 26
ROBINSON* CLOUDY 73 73 100 SW5 29.99R FOG TC 23
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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