133
ASUS43 KLOT 170812
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-170900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 65 65 100 CALM 30.02S TC 18
STERLING* CLEAR 65 65 100 CALM 30.02S TC 18
SAVANNA* CLEAR 64 62 94 CALM 30.03S TC 18
ILZ003-004-008-010-011-017-018-170900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 64 61 90 NW5 30.02S TC 18
FREEPORT* CLEAR 63 61 95 NW3 30.04S TC 17
ROCHELLE* CLEAR 62 61 95 CALM 30.01S TC 17
DE KALB* PTCLDY 64 63 98 NW5 30.00F TC 18
PERU* CLEAR 66 64 94 NW5 30.00S TC 19
ILZ005-006-012>014-019>023-170900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 68 61 78 NW6 29.96F TC 20
CHICAGO-MIDWAY PTCLDY 70 62 76 NW7 29.96F TC 21
AURORA CLEAR 63 63 100 NW3 29.98F TC 17
JOLIET* PTCLDY 69 66 93 CALM 29.97F TC 20
WAUKEGAN CLEAR 66 62 87 NW7 29.96F TC 19
DUPAGE AIRPORT CLEAR 65 63 93 NW3 29.97F TC 18
KANKAKEE* CLOUDY 72 70 95 N5 29.97F TC 22
WHEELING CLEAR 67 62 84 N3 29.98F TC 19
ROMEOVILLE* MOCLDY 68 66 94 NW5 29.98F TC 20
LANSING* MOCLDY 71 64 77 N3 29.96F TC 22
NORTHERLY ISL* N/A 71 61 70 NW8 N/A TC 22
LMZ740>746-170900-
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 70 74 320/ 12/ 14 1014.3 1/ 3
WAUKEGAN HARBOR 70 74 310/ 10/ 14 1015.1 1/ 3
WILMETTE BUOY 72 20/ 14/ 17 1017.3F 3/ 4
CHICAGO BUOY 73 73 1013.4 2/ 4
HARRISON CRIB 72 330/ 10/ 12 N/A
NORTHERLY ISL 72 320/ 7/ 10 N/A
CALUMET HARBOR 72 320/ 5/ 8 1014.8
MICHIGAN CITY 74 350/ 14/ 15 1012.5F
MICH CITY BUOY 74 74 340/ 12/ 14 N/A 3/ 4
ST. JOSEPH BUOY 74 74 340/ 10/ 14 1014.8F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-170900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 68 67 96 NW5 30.03S TC 20
GALESBURG* CLEAR 66 66 100 NW3 30.04R TC 19
JACKSONVILLE* MOCLDY 71 71 100 NW3 30.01S TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-170900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 69 69 100 NW3 29.99S TC 20
BLOOMINGTON CLOUDY 71 71 100 N8 30.00F TC 22
DECATUR CLOUDY 75 73 93 NW8 29.97S TC 24
PEORIA PTCLDY 69 67 93 CALM 30.01S TC 21
LACON* PTCLDY 67 64 88 CALM 29.99F TC 20
LINCOLN* CLOUDY 73 73 100 N5 29.99S TC 23
SPRINGFIELD CLOUDY 73 71 93 N7 29.99F TC 23
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-170900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 74 74 100 NW5 29.97S TC 23
RANTOUL* CLOUDY 72 71 99 N8 29.96F TC 22
MATTOON CLOUDY 74 73 97 CALM 29.97R TC 23
PARIS* N/A 73 72 98 CALM 29.97 TC 23
ILZ079-100>102-170900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 73 72 96 NW3 29.99F TC 23
BELLEVILLE MOCLDY 74 73 97 CALM 29.97 TC 23
CAHOKIA* CLOUDY 75 74 96 CALM 29.98F TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-170900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 82 76 82 NW5 29.96R HX 90 TC 28
EFFINGHAM* CLOUDY 73 73 99 CALM 30.00R TC 23
MT. VERNON TSTM 74 74 100 E3 29.99R FOG TC 23
CENTRALIA* CLOUDY 75 74 98 CALM 29.99F TC 24
METROPOLIS* MOCLDY 81 73 76 CALM 29.96S HX 85 TC 27
ILZ067-068-072-073-078-083-087-091-170900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 74 73 97 S6 29.98F TC 23
FLORA* MOCLDY 73 N/A N/A S3 29.99R TC 23
FAIRFIELD* CLOUDY 73 73 98 S3 29.97F TC 23
HARRISBURG* MOCLDY 73 73 100 CALM 29.98R TC 23
ROBINSON* MOCLDY 73 73 100 SW3 29.97F FOG TC 23
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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