415
ASUS43 KLOT 181503
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 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.
ILZ001-002-007-009-015-016-024-181600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 68 56 65 NW15G25 29.74R TC 20
STERLING* MOSUNNY 68 58 70 NW13 29.74R TC 20
SAVANNA* CLOUDY 66 53 63 NW8 29.75R TC 19
ILZ003-004-008-010-011-017-018-181600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 65 53 65 NW16 29.73R TC 18
FREEPORT* CLOUDY 65 58 79 N9 29.75R TC 18
DE KALB* CLOUDY 64 56 75 NW13G20 29.72R TC 18
ILZ005-006-012>014-019>023-181600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 64 53 67 NW9G20 29.68R TC 18
CHICAGO-MIDWAY PTSUNNY 66 55 67 NW13 29.68R TC 19
AURORA CLOUDY 65 57 75 NW12 29.71R TC 18
JOLIET* CLOUDY 68 58 69 N9 29.71R TC 20
WAUKEGAN PTSUNNY 63 53 70 NW9G18 29.68R TC 17
DUPAGE AIRPORT CLOUDY 64 54 69 NW14G20 29.69R TC 18
WHEELING PTSUNNY 64 53 67 NW10 29.70R TC 18
ROMEOVILLE* PTSUNNY 66 59 77 NW7 29.70R TC 19
LANSING* CLOUDY 64 54 70 NW8 29.70R TC 18
NORTHERLY ISL* N/A 64 52 64 W7 N/A TC 18
LMZ740>746-181600-
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 58 49 1002.0F 1/ 2
WAUKEGAN HARBOR 59 48 300/ 12/ 17 1006.7R 1/ 3
WILMETTE BUOY 59 10/ 8/ 12 1006.8R 1/ 4
CHICAGO BUOY 61 59 360/ 8/ 10 1004.4R 1/ 3
HARRISON CRIB 61 350/ 9/ 10 N/A
NORTHERLY ISL 64 300/ 5/ 15 N/A
CALUMET HARBOR 65 290/ 5/ 17 1005.5R
BURNS HARBOR 350/ 4/ 7 1006.1R
MICHIGAN CITY 61 320/ 18/ 21 1004.0R
MICH CITY BUOY 59 61 320/ 14/ 17 984.1R 2/ 4
ST. JOSEPH BUOY 59 64 330/ 14/ 16 1006.1R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-181600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 64 56 75 W8 29.80R TC 18
MACOMB* MOSUNNY 67 59 77 NW15 29.80R TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-181600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 67 57 70 NW12 29.75R TC 19
DECATUR MOSUNNY 65 57 75 W6 29.76S TC 18
PEORIA MOSUNNY 68 57 68 NW9 29.75R TC 20
SPRINGFIELD MOSUNNY 65 58 78 W8 29.78R TC 18
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 66 59 78 W13 29.76R TC 19
DANVILLE* MOSUNNY 69 58 68 NW14 29.74R TC 20
MATTOON MOSUNNY 67 58 72 W10 29.76R TC 19
PARIS* MOSUNNY 67 57 71 W8 29.76R TC 19
ILZ079-100>102-181600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE MOSUNNY 77 60 56 NW10 29.78R TC 25
CAHOKIA* MOSUNNY 77 56 48 NW7 29.78F TC 25
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 81 58 45 NW12 29.79R HX 81 TC 27
CAIRO* CLOUDY 78 76 93 CALM 29.79S HX 80 TC 26
EFFINGHAM* MOSUNNY 73 61 66 W13 29.80R TC 23
MARION PTSUNNY 81 66 61 NW9 29.78R HX 83 TC 27
CENTRALIA* MOSUNNY 76 56 50 NW9 29.79S TC 25
SALEM* MOSUNNY 75 62 64 MISG 29.80R TC 24
ILZ067-068-072-073-078-083-087-091-181600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 75 60 59 NW13 29.77 TC 24
FLORA* MOSUNNY 73 61 64 NW10G18 29.80R TC 23
FAIRFIELD* MOSUNNY 76 55 48 NW6 29.79R TC 25
HARRISBURG* PTSUNNY 82 68 63 W7 29.78S HX 84 TC 28
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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