347
ASUS43 KLOT 181406
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 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.
ILZ001-002-007-009-015-016-024-181500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 66 57 72 NW14 29.73R TC 19
STERLING* MOSUNNY 65 57 75 W9 29.72R TC 18
SAVANNA* MOSUNNY 67 53 61 NW12G22 29.72R TC 19
ILZ003-004-008-010-011-017-018-181500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 63 54 72 NW14 29.72R TC 17
FREEPORT* CLOUDY 62 58 86 N9 29.73R TC 17
ROCHELLE* CLOUDY 64 54 72 NW9 29.71R TC 18
DE KALB* CLOUDY 63 56 78 NW12 29.70R TC 17
ILZ005-006-012>014-019>023-181500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 63 54 72 NW8 29.66R TC 17
CHICAGO-MIDWAY CLOUDY 64 54 69 N15 29.67R TC 18
AURORA CLOUDY 63 57 81 NW13 29.68R TC 17
JOLIET* PTSUNNY 68 58 71 NW12 29.69R TC 20
WAUKEGAN MOSUNNY 62 52 69 NW13G26 29.65R TC 17
DUPAGE AIRPORT CLOUDY 62 54 74 NW14G20 29.68R TC 17
KANKAKEE* CLOUDY 65 56 71 NW15G24 29.69R TC 19
WHEELING PTSUNNY 64 55 72 N9 29.67R TC 18
ROMEOVILLE* PTSUNNY 66 59 77 W18G26 29.67R TC 19
LANSING* CLOUDY 64 56 76 NW13G18 29.67R TC 18
NORTHERLY ISL* N/A 64 52 64 W14 N/A TC 18
LMZ740>746-181500-
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 1002.2R 1/ 3
WAUKEGAN HARBOR 59 48 300/ 14/ 21 1005.7R 1/ 3
WILMETTE BUOY 58 350/ 10/ 12 1005.6R 1/ 3
CHICAGO BUOY 62 59 320/ 12/ 16 1003.3R 2/ 3
HARRISON CRIB 62 320/ 15/ 16 N/A
NORTHERLY ISL 63 310/ 12/ 16 N/A
CALUMET HARBOR 63 280/ 5/ 13 1003.9
BURNS HARBOR 340/ 7/ 12 1004.7R
MICHIGAN CITY 60 330/ 18/ 19 1003.0R
MICH CITY BUOY 60 61 330/ 12/ 17 983.2R 3/ 4
ST. JOSEPH BUOY 59 64 330/ 16/ 19 1004.7R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-181500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 64 56 75 W7 29.79R TC 18
GALESBURG* MOSUNNY 65 57 75 NW10G17 29.75S TC 19
MACOMB* PTSUNNY 65 58 80 CALM 29.76R TC 18
JACKSONVILLE* PTSUNNY 65 56 73 W6 29.77S TC 19
PITTSFIELD* MOSUNNY 67 56 66 W6 29.78F TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-181500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 66 59 76 MISG 29.72R TC 19
BLOOMINGTON SUNNY 66 58 75 NW17 29.73R TC 19
DECATUR PTSUNNY 65 57 75 W9 29.76R TC 18
PEORIA MOSUNNY 65 57 75 NW8 29.72S TC 18
LACON* MOSUNNY 67 55 67 NW10G18 29.72R TC 19
SPRINGFIELD PTSUNNY 64 58 80 W7 29.76R TC 18
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 65 58 78 W13G23 29.74R TC 18
DANVILLE* MOSUNNY 69 58 69 W14G24 29.72R TC 20
MATTOON MOSUNNY 67 57 70 W13G21 29.75R TC 19
PARIS* MOSUNNY 69 57 66 W13 29.74R TC 21
ILZ079-100>102-181500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 73 55 53 NW14 29.80R TC 23
BELLEVILLE PTSUNNY 74 60 61 NW12 29.77S TC 23
CAHOKIA* PTSUNNY 75 57 53 NW12 29.79R TC 24
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 80 67 64 N7 29.77R HX 82 TC 27
CAIRO* CLOUDY 79 76 90 SW3 29.78R HX 82 TC 26
EFFINGHAM* MOSUNNY 71 61 70 W10 29.79R TC 21
MARION PTSUNNY 81 68 65 NW16G23 29.77R HX 83 TC 27
CENTRALIA* MOSUNNY 74 57 55 NW5G16 29.79R TC 23
SALEM* MOSUNNY 73 61 67 MISG 29.79R TC 23
METROPOLIS* LGT RAIN 78 74 86 SW5 29.79R HX 81 TC 26
ILZ067-068-072-073-078-083-087-091-181500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 74 62 66 W16 N/A TC 23
FLORA* MOSUNNY 73 59 60 NW13 29.77S TC 23
FAIRFIELD* SUNNY 75 58 54 NW7 29.78R TC 24
HARRISBURG* PTSUNNY 80 67 64 NW7 29.78R HX 82 TC 26
ROBINSON* SUNNY 72 63 73 W14 29.75R TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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