189
ASUS43 KLOT 170710
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-170800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 66 65 96 CALM 30.02F TC 19
STERLING* CLEAR 65 65 100 CALM 30.02F TC 18
SAVANNA* CLEAR 65 62 91 CALM 30.03F TC 18
ILZ003-004-008-010-011-017-018-170800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 65 62 90 NW6 30.02S TC 18
FREEPORT* CLEAR 65 64 95 NW5 30.04S TC 18
ROCHELLE* CLEAR 63 61 94 NW3 30.02S TC 17
DE KALB* CLEAR 64 63 98 NW5 30.01F TC 18
PERU* CLEAR 70 66 88 NW6 30.00F TC 21
ILZ005-006-012>014-019>023-170800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 69 61 75 NW6 29.97F TC 21
CHICAGO-MIDWAY CLOUDY 72 62 71 N9 29.97S TC 22
AURORA CLEAR 65 64 97 NW3 29.99F TC 18
JOLIET* CLOUDY 70 69 94 CALM 29.99S TC 21
WAUKEGAN PTCLDY 67 62 84 NW5 29.97S TC 19
DUPAGE AIRPORT CLEAR 67 62 84 NW5 29.98F TC 19
KANKAKEE* CLOUDY 73 72 95 N5 29.97F TC 23
WHEELING PTCLDY 69 62 78 NW8 29.99S TC 21
ROMEOVILLE* CLOUDY 70 68 94 NW7 29.99S TC 21
LANSING* CLOUDY 72 64 75 N5 29.97F TC 22
NORTHERLY ISL* N/A 72 61 68 NW5 N/A TC 22
LMZ740>746-170800-
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 71 74 310/ 12/ 16 1014.6 1/ 5
WAUKEGAN HARBOR 70 74 300/ 12/ 14 1015.2 1/ 4
WILMETTE BUOY 73 10/ 12/ 17 1017.7F 3/ 4
CHICAGO BUOY 74 73 1013.5 2/ 4
HARRISON CRIB 74 340/ 15/ 15 N/A
NORTHERLY ISL 72 350/ 6/ 10 N/A
CALUMET HARBOR 73 330/ 6/ 10 1015.0
MICHIGAN CITY 74 340/ 12/ 13 1012.6F
MICH CITY BUOY 74 74 340/ 10/ 14 N/A 2/ 4
ST. JOSEPH BUOY 74 74 350/ 10/ 12 1015.0F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-170800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 69 69 100 NW7 30.03F TC 21
GALESBURG* CLEAR 66 66 100 NW5 30.04F TC 19
MACOMB* PTCLDY 68 68 100 NW6 30.05F TC 20
JACKSONVILLE* CLOUDY 72 72 100 NW6 30.01F TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-170800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 70 69 98 N5 29.99S TC 21
BLOOMINGTON CLOUDY 72 72 100 N9 30.01S TC 22
DECATUR CLOUDY 75 74 96 NW8 29.99F TC 24
PEORIA PTCLDY 70 68 93 NW3 30.01S TC 21
LACON* PTCLDY 68 64 87 CALM 30.00S TC 20
LINCOLN* CLOUDY 75 75 100 CALM 30.00S TC 24
SPRINGFIELD CLOUDY 74 73 97 NW6 30.00F TC 23
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-170800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 74 74 100 W6 29.98F FOG TC 23
RANTOUL* CLOUDY 73 73 100 W3 29.98F TC 23
MATTOON CLOUDY 75 74 96 MISG 29.97F TC 24
ILZ079-100>102-170800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 74 73 96 CALM 30.01R TC 23
BELLEVILLE MOCLDY 74 73 97 CALM 29.97F TC 23
CAHOKIA* MOCLDY 74 74 100 CALM 29.99S TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-170800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* MOCLDY 83 76 80 W3 29.94S HX 91 TC 28
EFFINGHAM* CLOUDY 73 73 100 CALM 29.99F TC 23
MARION CLOUDY 73 72 98 CALM 29.97F TC 23
MT. VERNON LGT RAIN 74 74 100 NE5 29.96F TC 23
CENTRALIA* TSTM 74 74 98 CALM 29.97F TC 24
SALEM* N/A 76 76 100 MISG 29.98F TC 24
METROPOLIS* MOCLDY 83 72 69 N5 29.95S HX 89 TC 29
ILZ067-068-072-073-078-083-087-091-170800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 77 75 93 CALM 29.99F TC 25
FLORA* LGT RAIN 73 N/A N/A CALM 29.97F TC 23
FAIRFIELD* MOCLDY 73 73 98 SE5 29.97F TC 23
HARRISBURG* CLOUDY 74 73 99 NE5 29.97F THUNDER TC 23
ROBINSON* RAIN 73 73 100 W2 29.98R FOG TC 23
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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