574
ASUS43 KLOT 170610
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 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.
ILZ001-002-007-009-015-016-024-170700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 67 66 97 CALM 30.03R TC 19
6HR MIN TEMP: 66; 6HR MAX TEMP: 80;
STERLING* CLEAR 66 65 96 W5 30.04R TC 19
SAVANNA* CLEAR 68 63 84 CALM 30.04R TC 20
ILZ003-004-008-010-011-017-018-170700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 66 62 87 NW3 30.02R TC 19
6HR MIN TEMP: 66; 6HR MAX TEMP: 80;
FREEPORT* CLEAR 65 64 95 NW3 30.05R TC 19
ROCHELLE* CLEAR 65 63 91 NW3 30.03R TC 19
DE KALB* CLEAR 65 64 97 NW3 30.03R TC 18
PERU* PTCLDY 70 66 88 NW8 30.01S TC 21
ILZ005-006-012>014-019>023-170700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 70 62 76 N7 29.98R TC 21
6HR MIN TEMP: 70; 6HR MAX TEMP: 83;
CHICAGO-MIDWAY PTCLDY 73 62 68 N7 29.97R TC 23
6HR MIN TEMP: 73; 6HR MAX TEMP: 83;
AURORA CLEAR 66 65 96 NW5 30.00R TC 19
6HR MIN TEMP: 66; 6HR MAX TEMP: 80; 6HR PCP: 0.06;
JOLIET* PTCLDY 71 69 96 N5 29.99S TC 22
WAUKEGAN CLEAR 67 62 84 NW5 29.97S TC 19
6HR MIN TEMP: 67; 6HR MAX TEMP: 81;
DUPAGE AIRPORT CLEAR 67 62 84 N3 29.99R TC 19
6HR MIN TEMP: 67; 6HR MAX TEMP: 81;
KANKAKEE* MOCLDY 73 72 94 N7 29.99R TC 23
WHEELING CLEAR 70 62 76 N5 29.99S TC 21
6HR MIN TEMP: 70; 6HR MAX TEMP: 84;
ROMEOVILLE* MOCLDY 72 66 83 N8 29.99S TC 22
LANSING* CLOUDY 73 64 75 N8 29.98S TC 23
NORTHERLY ISL* N/A 73 62 68 N6 N/A TC 23
LMZ740>746-170700-
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 1014.7 1/ 3
WAUKEGAN HARBOR 71 74 290/ 10/ 16 1015.6 2/ 4
WILMETTE BUOY 73 10/ 12/ 16 1018.0R 3/ 4
CHICAGO BUOY 74 73 1013.9 2/ 4
HARRISON CRIB 74 350/ 15/ 16 N/A
NORTHERLY ISL 73 330/ 9/ 13 N/A
CALUMET HARBOR 74 330/ 7/ 11 1015.3
MICHIGAN CITY 75 360/ 14/ 16 1013.3R
MICH CITY BUOY 74 74 350/ 10/ 14 N/A 2/ 4
ST. JOSEPH BUOY 74 74 330/ 10/ 14 1015.6R 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-170700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 71 69 93 NW7 30.05R TC 22
GALESBURG* CLEAR 68 68 100 NW3 30.05R TC 20
MACOMB* PTCLDY 69 69 100 NW5 30.06R TC 21
JACKSONVILLE* CLOUDY 73 73 100 NW3 30.02S TC 23
ILZ028>032-037-038-041>044-048-051>054-059>061-170700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 72 72 100 N5 30.00R TC 22
BLOOMINGTON CLOUDY 74 74 100 NW12 30.02R TC 23
DECATUR CLOUDY 76 74 93 W6 30.00S TC 24
PEORIA MOCLDY 72 69 90 N5 30.01R TC 22
6HR MIN TEMP: 72; 6HR MAX TEMP: 79; 6HR PCP: TRACE;
LACON* PTCLDY 71 65 83 CALM 30.00S TC 21
LINCOLN* CLOUDY 76 76 100 NW3 30.00S TC 24
SPRINGFIELD CLOUDY 75 73 93 W5 30.01S TC 24
6HR MIN TEMP: 74; 6HR MAX TEMP: 79;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-170700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 73 73 100 SW5 29.99S TC 23
RANTOUL* MOCLDY 73 73 98 CALM 29.98F TC 23
MATTOON CLOUDY 75 74 96 MISG 29.99S TC 24
ILZ079-100>102-170700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 74 73 97 CALM 30.00F TC 24
BELLEVILLE TSTM 75 73 94 NE3 29.95 TC 24
CAHOKIA* LGT RAIN 75 73 93 NW3 29.99F TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-170700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* PTCLDY 83 76 79 CALM 29.95F HX 92 TC 29
EFFINGHAM* HVY RAIN 74 74 100 NW3 30.02R TC 23
MARION RAIN 73 73 98 N8 30.00F TC 23
MT. VERNON LGT RAIN 75 74 96 N3 29.99F TC 24
CENTRALIA* TSTM 75 74 99 CALM 30.01F TC 24
SALEM* N/A 76 76 100 MISG 30.00F TC 24
METROPOLIS* PTCLDY 83 73 69 CALM 29.96F HX 89 TC 29
ILZ067-068-072-073-078-083-087-091-170700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 78 76 93 N3 30.00R HX 81 TC 26
FLORA* HVY RAIN 75 N/A N/A SW6 30.03R TC 24
FAIRFIELD* TSTM 73 73 99 N3 30.03R TC 23
HARRISBURG* CLOUDY 74 73 98 N17G28 30.01R TC 23
ROBINSON* RAIN 75 75 100 NW3 29.99F FOG TC 24
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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