226
ASUS43 KLOT 181306
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-181400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 65 57 75 W13 29.72R TC 18
STERLING* SUNNY 64 59 83 W13 29.70R TC 18
SAVANNA* CLOUDY 65 55 69 W9 29.70R TC 19
ILZ003-004-008-010-011-017-018-181400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 62 55 77 NW14G23 29.69R TC 17
FREEPORT* CLOUDY 64 59 84 NW15G24 29.69R TC 18
ROCHELLE* CLOUDY 62 55 79 NW13 29.67R TC 17
DE KALB* CLOUDY 61 57 87 NW12G20 29.66R TC 16
PERU* MOSUNNY 64 57 77 W15 29.68R TC 18
ILZ005-006-012>014-019>023-181400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 62 54 74 NW15G29 29.63R TC 17
CHICAGO-MIDWAY DRIZZLE 62 57 83 NW13G23 29.63R TC 17
AURORA CLOUDY 63 57 81 NW15 29.64R TC 17
JOLIET* CLOUDY 65 58 78 W7 29.65R TC 18
WAUKEGAN MOSUNNY 60 53 77 NW12G25 29.62R TC 16
DUPAGE AIRPORT CLOUDY 62 56 80 NW12 29.64R TC 17
KANKAKEE* PTSUNNY 65 57 74 NW17G24 29.66R TC 19
WHEELING CLOUDY 62 54 74 N15G26 29.64R TC 17
ROMEOVILLE* PTSUNNY 64 59 82 W15G29 29.64R TC 18
LANSING* CLOUDY 63 55 75 W15G24 29.63R TC 17
NORTHERLY ISL* N/A 63 54 72 W9 N/A TC 17
LMZ740>746-181400-
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 1001.1R 1/ 3
WAUKEGAN HARBOR 57 49 300/ 16/ 19 1004.8R 1/ 2
WILMETTE BUOY 59 360/ 10/ 14 1004.6R 1/ 3
CHICAGO BUOY 62 59 300/ 16/ 19 1002.0R 1/ 3
HARRISON CRIB 63 300/ 19/ 23 N/A
NORTHERLY ISL 63 290/ 11/ 16 N/A
CALUMET HARBOR 64 280/ 9/ 17 1002.7R
BURNS HARBOR 290/ 9/ 11 1003.4R
MICHIGAN CITY 63 270/ 21/ 23 1000.7R
MICH CITY BUOY 62 61 280/ 16/ 17 981.4R 2/ 4
ST. JOSEPH BUOY 61 64 330/ 16/ 21 1003.4R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-181400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 63 55 75 NW7 29.76R TC 17
GALESBURG* MOSUNNY 63 56 80 W12G18 29.75R TC 17
MACOMB* MOSUNNY 63 57 81 NW16 29.77R TC 17
JACKSONVILLE* MOSUNNY 64 56 73 W6 29.76R TC 18
PITTSFIELD* PTSUNNY 66 56 68 W5 29.79R TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-181400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 65 58 79 MISG 29.68R TC 18
BLOOMINGTON MOSUNNY 65 57 75 W15G22 29.72R TC 18
DECATUR PTSUNNY 66 56 70 W12G22 29.72R TC 19
PEORIA MOSUNNY 64 56 75 NW8G22 29.72R TC 18
LACON* SUNNY 65 55 71 NW9G16 29.69R TC 18
SPRINGFIELD PTSUNNY 64 57 78 W7 29.73R TC 18
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 66 59 78 W12 29.71R TC 19
DANVILLE* MOSUNNY 68 58 72 W15 29.68R TC 20
MATTOON PTSUNNY 67 59 75 W14 29.73R TC 19
PARIS* MOSUNNY 67 59 74 W9 29.70S TC 20
ILZ079-100>102-181400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 70 57 64 W9 29.78R TC 21
BELLEVILLE PTSUNNY 73 65 75 NW6 29.77R TC 23
CAHOKIA* PTSUNNY 72 61 68 NW9 29.78R TC 22
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE PTSUNNY 79 73 82 CALM 29.74S HX 82 TC 26
CAIRO* CLOUDY 80 75 86 SW9 29.76R HX 84 TC 26
EFFINGHAM* PTSUNNY 68 61 78 W9 29.76R TC 20
MARION CLOUDY 79 73 83 W5 29.75R HX 82 TC 26
CENTRALIA* MOSUNNY 73 58 59 CALM 29.77R TC 23
SALEM* MOSUNNY 72 61 69 MISG 29.76S TC 22
METROPOLIS* CLOUDY 80 73 80 SW8 29.77R HX 84 TC 27
ILZ067-068-072-073-078-083-087-091-181400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 74 64 71 W12 N/A TC 23
FLORA* MOSUNNY 72 59 64 NW15G24 29.75R TC 22
FAIRFIELD* MOSUNNY 75 58 55 NW7 29.75R TC 24
HARRISBURG* CLOUDY 78 76 92 CALM 29.75S HX 82 TC 26
ROBINSON* MOSUNNY 72 63 73 NW13G21 29.72R TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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