927
ASUS43 KLOT 181701
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM 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.
ILZ001-002-007-009-015-016-024-181800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 71 56 58 NW12G23 29.77R TC 22
STERLING* MOSUNNY 71 57 61 NW9 29.78R TC 22
SAVANNA* PTSUNNY 68 54 60 NW8 29.78R TC 20
ILZ003-004-008-010-011-017-018-181800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 67 52 58 W12 29.78R TC 19
FREEPORT* PTSUNNY 68 57 69 N8 29.80R TC 20
DE KALB* CLOUDY 65 55 68 NW10G16 29.78R TC 19
PERU* PTSUNNY 70 57 64 NW8 29.77R TC 21
ILZ005-006-012>014-019>023-181800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 68 52 56 N14G23 29.73R TC 20
CHICAGO-MIDWAY PTSUNNY 69 53 56 NW13 29.73R TC 21
AURORA PTSUNNY 69 56 62 NW14 29.75R TC 21
JOLIET* PTSUNNY 71 57 59 NW8 29.76R TC 22
WAUKEGAN PTSUNNY 65 51 60 NW6G17 29.73R TC 18
DUPAGE AIRPORT PTSUNNY 68 55 63 NW16G23 29.74R TC 20
WHEELING CLOUDY 67 53 61 N8 29.75R TC 19
ROMEOVILLE* PTSUNNY 68 57 68 N10 29.75R TC 20
LANSING* CLOUDY 67 53 59 NW8 29.75R TC 20
NORTHERLY ISL* N/A 67 50 54 W9 N/A TC 19
LMZ740>746-181800-
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 61 49 1004.3R 1/ 3
WAUKEGAN HARBOR 61 48 280/ 8/ 14 1008.3R 1/ 3
WILMETTE BUOY 60 360/ 4/ 6 1008.9R 1/ 3
CHICAGO BUOY 61 59 10/ 10/ 14 1006.0R 1/ 2
HARRISON CRIB 62 360/ 13/ 14 N/A
NORTHERLY ISL 66 40/ 4/ 11 N/A
CALUMET HARBOR 64 360/ 6/ 12 1007.0R
BURNS HARBOR 360/ 6/ 7 1007.8R
MICHIGAN CITY 62 330/ 10/ 11 1006.0R
MICH CITY BUOY 60 62 330/ 6/ 10 985.9R 2/ 4
ST. JOSEPH BUOY 60 63 300/ 10/ 14 1007.9R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-181800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 68 57 68 W9 29.84R TC 20
GALESBURG* PTSUNNY 68 57 68 NW8 29.82R TC 20
MACOMB* PTSUNNY 70 61 72 NW8 29.84R TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-181800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 71 59 65 W13 29.80R TC 22
DECATUR MOSUNNY 69 59 70 W9 29.81R TC 21
PEORIA PTSUNNY 70 58 65 W7 29.80R TC 21
SPRINGFIELD PTSUNNY 70 59 68 W10 29.82R TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 70 61 73 W12 29.80R TC 21
DANVILLE* PTSUNNY 71 59 65 W9 29.79R TC 22
MATTOON PTSUNNY 67 58 72 W9 29.80R TC 19
PARIS* PTSUNNY 67 59 73 W8 29.80R TC 20
ILZ079-100>102-181800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 73 55 53 NW12 29.85R TC 23
BELLEVILLE PTSUNNY 80 61 51 W10G17 29.82R HX 81 TC 27
CAHOKIA* PTSUNNY 79 56 45 N10 29.83R HX 80 TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 80 58 46 NE5 29.80F HX 80 TC 27
CAIRO* MOSUNNY 83 76 78 W3 29.80F HX 92 TC 29
EFFINGHAM* MOSUNNY 72 61 68 W7 29.83S TC 22
MARION CLOUDY 81 63 54 NW9 29.81S HX 82 TC 27
MT. VERNON MOSUNNY 80 55 42 VRB5 29.82R HX 80 TC 27
CENTRALIA* SUNNY 79 55 43 CALM 29.83R TC 26
SALEM* SUNNY 77 61 58 MISG 29.83R TC 25
ILZ067-068-072-073-078-083-087-091-181800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 77 60 55 NW8 29.80R TC 25
FLORA* SUNNY 77 61 57 W12 29.82R TC 25
FAIRFIELD* MOSUNNY 79 56 45 NW6 29.81R HX 80 TC 26
HARRISBURG* PTSUNNY 82 64 53 N5 29.80F HX 83 TC 28
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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