060
ASUS43 KLOT 182110
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 PM CDT TUE AUG 18 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.
ILZ001-002-007-009-015-016-024-182200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 80 70 71 SW13 29.93F HX 83 TC 27
STERLING* CLOUDY 81 71 71 SW7 29.95F HX 85 TC 27
SAVANNA* PTSUNNY 79 68 69 S9 29.93F HX 81 TC 26
ILZ003-004-008-010-011-017-018-182200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 77 67 71 S9 29.94F TC 25
FREEPORT* PTSUNNY 78 71 79 S9 29.94F HX 80 TC 26
ROCHELLE* CLOUDY 74 68 81 S5 29.96F TC 23
DE KALB* CLOUDY 74 68 80 SW10 29.97F TC 24
PERU* CLOUDY 81 70 69 S10 29.96F HX 84 TC 27
ILZ005-006-012>014-019>023-182200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 78 66 66 SW10 29.93F HX 80 TC 26
CHICAGO-MIDWAY CLOUDY 78 66 66 SW12 29.95F HX 80 TC 26
AURORA CLOUDY 75 68 78 SW9 29.95F TC 24
JOLIET* LGT RAIN 76 69 76 SW5 29.97F TC 25
WAUKEGAN CLOUDY 77 67 71 SW12 29.92F TC 25
DUPAGE AIRPORT CLOUDY 76 67 73 SW13 29.95F TC 24
KANKAKEE* CLOUDY 76 66 71 SW5 29.99F TC 25
WHEELING CLOUDY 78 66 66 W12 29.95F HX 80 TC 26
LANSING* CLOUDY 76 65 66 SW14 29.98S TC 25
NORTHERLY ISL* N/A 79 62 56 S15 N/A HX 80 TC 26
LMZ740>746-182200-
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 77 74 220/ 12/ 16 1013.4 1
WAUKEGAN HARBOR 78 74 240/ 14/ 17 1014.3 1
WILMETTE BUOY 77 230/ 12/ 16 1017.0F 1/ 2
CHICAGO BUOY 78 73 1012.9 1
NORTHERLY ISL 79 260/ 8/ 11 N/A
CALUMET HARBOR 79 190/ 8/ 14 1014.5
MICH CITY BUOY 77 75 230/ 12/ 16 N/A 1
ST. JOSEPH BUOY 76 74 210/ 6/ 8 1015.0F 1/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-182200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 80 68 66 SW8 30.00F HX 83 TC 27
GALESBURG* CLOUDY 80 72 76 SW15 29.97F HX 83 TC 27
MACOMB* CLOUDY 80 74 80 SW10 30.00S HX 85 TC 27
JACKSONVILLE* PTSUNNY 80 69 67 SW5 30.00F HX 83 TC 27
ILZ028>032-037-038-041>044-048-051>054-059>061-182200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 78 68 72 SW9 29.98F HX 80 TC 26
BLOOMINGTON PTSUNNY 78 68 71 S12 30.01F HX 80 TC 26
DECATUR PTSUNNY 82 65 56 SW12 30.01F HX 84 TC 28
PEORIA CLOUDY 79 68 69 SW10 29.96F HX 81 TC 26
LACON* CLOUDY 78 67 67 SW7 29.95F HX 80 TC 26
LINCOLN* PTSUNNY 83 68 59 SW8 29.99F HX 86 TC 29
SPRINGFIELD CLOUDY 82 66 58 SW7 29.99F HX 84 TC 28
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-182200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 79 67 66 SW7 30.01F HX 81 TC 26
RANTOUL* CLOUDY 78 68 69 W8 30.01F HX 81 TC 26
MATTOON MOSUNNY 81 66 60 SW3 30.01F HX 83 TC 27
PARIS* MOSUNNY 82 65 56 SW3 30.01F HX 83 TC 28
ILZ079-100>102-182200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 84 66 54 S8 30.01S HX 86 TC 29
BELLEVILLE SUNNY 86 70 59 S7 29.97F HX 90 TC 30
CAHOKIA* MOSUNNY 86 67 52 CALM 29.99F HX 89 TC 30
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-182200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 88 66 48 S7 30.00F HX 90 TC 31
CAIRO* SUNNY 88 68 51 CALM 30.00F HX 91 TC 31
EFFINGHAM* MOSUNNY 83 67 58 SW7 30.03R HX 86 TC 29
MT. VERNON SUNNY 87 67 51 S7 30.00F HX 90 TC 31
CENTRALIA* SUNNY 87 67 51 SW6 30.00F HX 90 TC 31
SALEM* N/A 85 69 58 MISG 30.00F HX 89 TC 30
METROPOLIS* SUNNY 87 64 46 CALM 30.01F HX 88 TC 31
ILZ067-068-072-073-078-083-087-091-182200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 85 62 46 VRB6 29.99F HX 85 TC 29
FLORA* SUNNY 84 64 51 SW8 30.01F HX 86 TC 29
FAIRFIELD* SUNNY 84 64 50 SE3 30.00F HX 86 TC 29
HARRISBURG* SUNNY 86 65 49 SW3 30.01F HX 88 TC 30
ROBINSON* SUNNY 84 64 51 VRB1 29.99F HX 86 TC 29
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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