500
ASUS43 KLOT 181212
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT THU JUN 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.
ILZ001-002-007-009-015-016-024-181300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 62 56 80 W13 29.68R TC 17
6HR MIN TEMP: 60; 6HR MAX TEMP: 68;
STERLING* SUNNY 62 59 90 W12 29.66R TC 17
SAVANNA* MOSUNNY 63 56 78 NW9 29.64R TC 17
ILZ003-004-008-010-011-017-018-181300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 61 56 83 NW16G22 29.63R TC 16
6HR MIN TEMP: 60; 6HR MAX TEMP: 64;
FREEPORT* MOSUNNY 62 59 90 NW13G25 29.63R TC 17
ROCHELLE* MOSUNNY 61 55 80 W12G17 29.65R TC 16
DE KALB* CLOUDY 60 56 88 W13G20 29.63R TC 16
PERU* SUNNY 63 57 82 W14G20 29.65R TC 17
ILZ005-006-012>014-019>023-181300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 62 56 80 W14G22 29.57R TC 17
6HR MIN TEMP: 62; 6HR MAX TEMP: 68;
CHICAGO-MIDWAY PTSUNNY 64 56 75 W22G32 29.59R TC 18
6HR MIN TEMP: 64; 6HR MAX TEMP: 69;
AURORA PTSUNNY 62 57 83 W16G23 29.62R TC 17
6HR MIN TEMP: 60; 6HR MAX TEMP: 65;
JOLIET* PTSUNNY 65 59 79 W12G18 29.62R TC 19
WAUKEGAN PTSUNNY 60 55 83 NW8G23 29.56R TC 16
6HR MIN TEMP: 59; 6HR MAX TEMP: 63;
DUPAGE AIRPORT CLOUDY 61 56 83 W14G23 29.60R TC 16
6HR MIN TEMP: 61; 6HR MAX TEMP: 67;
KANKAKEE* MOSUNNY 64 58 80 W16 29.64R TC 18
WHEELING CLOUDY 62 57 83 NW14G22 29.59R TC 17
6HR MIN TEMP: 62; 6HR MAX TEMP: 67;
ROMEOVILLE* MOSUNNY 64 59 82 W16G26 29.60R TC 18
LANSING* MOSUNNY 64 56 74 W10G25 29.59R TC 18
NORTHERLY ISL* N/A 64 55 72 W14 N/A TC 18
LMZ740>746-181300-
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 57 49 998.6F 1/ 2
WAUKEGAN HARBOR 59 49 310/ 16/ 21 1003.5 1/ 2
WILMETTE BUOY 60 330/ 14/ 19 1002.6R 1/ 2
CHICAGO BUOY 63 58 290/ 17/ 27 1000.3 1/ 2
HARRISON CRIB 64 280/ 19/ 25 N/A
NORTHERLY ISL 64 270/ 14/ 14 N/A
CALUMET HARBOR 65 260/ 5/ 9 1000.8
BURNS HARBOR 280/ 8/ 12 1001.7R
MICHIGAN CITY 64 250/ 16/ 18 999.2R
MICH CITY BUOY 63 61 270/ 14/ 17 979.7R 2/ 4
ST. JOSEPH BUOY 63 64 270/ 16/ 21 1001.5R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-181300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 63 54 72 NW8 29.74R TC 17
GALESBURG* MOSUNNY 61 55 81 W13 29.72R TC 16
MACOMB* MOSUNNY 64 56 78 NW12 29.73S TC 18
JACKSONVILLE* MOSUNNY 64 55 75 W8 29.74R TC 18
PITTSFIELD* PTSUNNY 66 55 66 W3 29.75R TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-181300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 63 58 81 MISG 29.67R TC 17
BLOOMINGTON MOSUNNY 63 56 78 W14G21 29.69R TC 17
DECATUR PTSUNNY 65 56 72 W10G21 29.70R TC 18
PEORIA MOSUNNY 63 55 75 NW15G21 29.69R TC 17
6HR MIN TEMP: 62; 6HR MAX TEMP: 69;
LACON* SUNNY 63 54 73 NW8 29.66R TC 17
SPRINGFIELD PTSUNNY 63 57 81 W7 29.71R TC 17
6HR MIN TEMP: 63; 6HR MAX TEMP: 68;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 64 59 83 W13 29.68R TC 18
DANVILLE* MOSUNNY 66 59 77 W10 29.66R TC 19
MATTOON PTSUNNY 66 59 78 W12 29.70R TC 19
PARIS* MOSUNNY 66 60 81 W9 29.68R TC 19
ILZ079-100>102-181300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 68 57 68 NW7 29.75R TC 20
BELLEVILLE PTSUNNY 71 62 75 NW7 29.73R TC 22
CAHOKIA* PTSUNNY 71 64 78 W6 29.75R TC 22
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 77 74 90 SW5 29.74R TC 25
6HR MIN TEMP: 77; 6HR MAX TEMP: 82;
CAIRO* CLOUDY 79 75 85 SW9 29.74R HX 83 TC 26
EFFINGHAM* PTSUNNY 67 62 84 W9 29.73S TC 20
MARION PTSUNNY 79 75 89 W6 29.74R HX 82 TC 26
CENTRALIA* MOSUNNY 74 65 73 CALM 29.75R TC 23
SALEM* MOSUNNY 72 65 81 MISG 29.74R TC 22
METROPOLIS* CLOUDY 80 73 79 S10G20 29.75R HX 83 TC 27
ILZ067-068-072-073-078-083-087-091-181300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 74 67 78 W12G21 N/A TC 23
FLORA* MOSUNNY 73 66 78 NW13G20 29.73R TC 23
FAIRFIELD* MOSUNNY 76 65 67 W3 29.73R TC 25
HARRISBURG* CLOUDY 78 76 95 W5 29.74R HX 80 TC 25
ROBINSON* MOSUNNY 72 68 88 W12G18 29.70R TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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