022
ASUS43 KLOT 171306
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-171400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 69 65 86 W5 30.06S TC 21
STERLING* SUNNY 69 63 81 N7 30.07S TC 21
SAVANNA* SUNNY 66 65 97 CALM 30.08R TC 19
ILZ003-004-008-010-011-017-018-171400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 66 61 84 N8 30.07R TC 19
FREEPORT* SUNNY 66 64 95 NW3 30.10R TC 19
ROCHELLE* MOSUNNY 65 61 89 N7 30.07R TC 18
DE KALB* PTSUNNY 65 64 96 NW9 30.06R TC 18
PERU* SUNNY 68 63 83 NW9 30.05S TC 20
ILZ005-006-012>014-019>023-171400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 70 65 84 NW6 30.01R TC 21
CHICAGO-MIDWAY PTSUNNY 71 66 84 N6 30.00S TC 22
AURORA MOSUNNY 68 66 93 NW5 30.03S TC 20
JOLIET* SUNNY 69 67 93 N6 30.02S TC 21
WAUKEGAN PTSUNNY 70 63 78 NE8 30.02R TC 21
DUPAGE AIRPORT SUNNY 70 65 84 N9 30.02S TC 21
KANKAKEE* SUNNY 69 65 88 NW5 30.02S TC 21
WHEELING SUNNY 71 66 84 N6 30.04R TC 22
LANSING* MOSUNNY 69 64 81 NW6 30.01R TC 21
NORTHERLY ISL* N/A 73 64 73 N7 N/A TC 23
LMZ740>746-171400-
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 74 360/ 14/ 17 1016.2R 2/ 4
WAUKEGAN HARBOR 72 74 340/ 14/ 17 1017.1R 2/ 4
WILMETTE BUOY 73 70/ 14/ 17 1019.0R 3/ 5
CHICAGO BUOY 74 73 1014.9R 2/ 4
HARRISON CRIB 74 40/ 16/ 18 N/A
NORTHERLY ISL 71 350/ 8/ 8 N/A
CALUMET HARBOR 70 300/ 5/ 6 1015.9
MICHIGAN CITY 73 20/ 8/ 10 1013.7
MICH CITY BUOY 74 74 30/ 12/ 16 N/A 2/ 5
ST. JOSEPH BUOY 73 75 30/ 10/ 14 1016.4R 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-171400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 69 67 93 NW5 30.09R TC 21
GALESBURG* SUNNY 66 66 100 W5 30.08S TC 19
MACOMB* SUNNY 69 69 100 NW5 30.10S TC 21
JACKSONVILLE* SUNNY 70 70 100 NW6 30.07R TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-171400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 68 66 94 NW7 30.03S TC 20
BLOOMINGTON SUNNY 69 65 86 N9 30.05S TC 21
DECATUR MOSUNNY 70 65 84 N12 30.04R TC 21
PEORIA SUNNY 69 63 81 N8 30.05S TC 21
LACON* SUNNY 67 62 81 N3 30.04S TC 20
LINCOLN* SUNNY 70 70 99 NW5 30.05S TC 21
SPRINGFIELD SUNNY 71 66 84 NW7 30.05R TC 22
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-171400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 69 67 93 N9 30.02R TC 21
RANTOUL* CLOUDY 68 65 90 NW8 30.03R TC 20
MATTOON CLOUDY 73 70 90 N9 30.01R TC 23
PARIS* CLOUDY 73 72 98 NW5 30.01R FOG TC 23
ILZ079-100>102-171400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 72 70 94 N12 30.05R TC 22
BELLEVILLE CLOUDY 75 75 100 NW7 30.02R TC 24
CAHOKIA* CLOUDY 74 71 91 NW12 30.04R TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 73 72 94 NW8 30.03R TC 23
CAIRO* MOSUNNY 78 75 88 CALM 30.03R HX 81 TC 26
EFFINGHAM* CLOUDY 74 74 99 W6 30.02S FOG TC 23
MT. VERNON CLOUDY 74 74 100 CALM 30.02R TC 23
CENTRALIA* CLOUDY 75 74 98 CALM 30.02S FOG TC 24
SALEM* N/A 75 75 100 MISG 30.02S FOG TC 24
METROPOLIS* MOSUNNY 78 75 88 W3 30.01R HX 81 TC 26
ILZ067-068-072-073-078-083-087-091-171400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 75 74 96 W7 29.99R TC 24
FLORA* PTSUNNY 75 N/A N/A W7 30.01R TC 24
FAIRFIELD* CLOUDY 73 73 98 W3 30.01R FOG TC 23
HARRISBURG* CLOUDY 74 74 100 W5 30.01S TC 23
ROBINSON* PTSUNNY 75 75 100 W3 29.98S TC 24
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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