371
ASUS43 KLOT 181011
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 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.
ILZ001-002-007-009-015-016-024-181100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 62 55 77 W12 29.59R TC 17
STERLING* CLEAR 61 57 87 W14G20 29.57R TC 16
SAVANNA* MOCLDY 62 56 80 W13 29.58R TC 17
ILZ003-004-008-010-011-017-018-181100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 60 55 83 W15 29.55R TC 16
FREEPORT* CLEAR 60 58 92 NW14G21 29.57R TC 16
ROCHELLE* CLEAR 61 55 80 W14G20 29.55R TC 16
DE KALB* CLEAR 60 56 87 W9 29.54R TC 16
ILZ005-006-012>014-019>023-181100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 64 57 78 W13G23 29.48R TC 18
CHICAGO-MIDWAY PTCLDY 65 58 78 W12G23 29.49R TC 18
AURORA CLEAR 61 57 87 W14 29.51R TC 16
JOLIET* CLEAR 65 59 81 W8 29.53R TC 18
WAUKEGAN CLEAR 61 57 87 W10G22 29.46R TC 16
DUPAGE AIRPORT CLEAR 63 56 78 W16G24 29.51R TC 17
KANKAKEE* CLEAR 62 57 83 W12 29.54R TC 17
WHEELING PTCLDY 63 58 83 NW14G25 29.49R TC 17
ROMEOVILLE* CLEAR 64 59 82 W13G20 29.52R TC 18
LANSING* CLEAR 64 57 79 W13 29.50R TC 18
NORTHERLY ISL* N/A 65 57 75 W7 N/A TC 18
LMZ740>746-181100-
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 60 50 999.2R 1/ 4
WAUKEGAN HARBOR 61 50 280/ 14/ 19 1000.4 1
WILMETTE BUOY 61 320/ 14/ 19 999.7R 1/ 2
CHICAGO BUOY 66 58 280/ 16/ 25 997.4 1/ 2
HARRISON CRIB 66 270/ 19/ 22 N/A
NORTHERLY ISL 66 290/ 8/ 12 N/A
CALUMET HARBOR 66 240/ 5/ 10 998.2
BURNS HARBOR 270/ 8/ 10 999.0R
MICHIGAN CITY 66 250/ 17/ 19 996.3R
MICH CITY BUOY 63 61 260/ 12/ 14 976.9R 2/ 4
ST. JOSEPH BUOY 64 64 270/ 14/ 17 998.6R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-181100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 64 53 67 NW8 29.69R TC 18
GALESBURG* CLEAR 59 54 82 W10 29.66R TC 15
MACOMB* CLEAR 61 55 82 W12 29.69R TC 16
JACKSONVILLE* MOCLDY 62 57 85 W7 29.68R TC 17
PITTSFIELD* MOCLDY 66 55 69 W7 29.70R TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-181100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 63 57 82 MISG 29.57R TC 17
BLOOMINGTON CLEAR 63 56 78 W13 29.62R TC 17
DECATUR PTCLDY 66 59 78 W12G22 29.63R TC 19
PEORIA CLEAR 64 54 69 W12G25 29.62R TC 18
LACON* CLEAR 63 53 71 W10G16 29.59R TC 17
SPRINGFIELD PTCLDY 64 57 78 W10 29.64R TC 18
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 65 63 93 W13 29.60R TC 18
DANVILLE* CLEAR 66 64 93 W9G16 29.58R TC 19
MATTOON CLEAR 68 64 87 W8 29.62R TC 20
PARIS* CLEAR 66 65 94 W8 29.61R TC 19
ILZ079-100>102-181100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 70 65 83 W5 29.69R TC 21
BELLEVILLE MOCLDY 73 72 97 SW6 29.66R TC 23
CAHOKIA* MOCLDY 73 71 93 SW5 29.68R TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 78 74 87 W10 29.68R HX 81 TC 26
CAIRO* CLOUDY 80 76 89 SW7 29.71R HX 85 TC 27
EFFINGHAM* PTCLDY 70 69 97 SW7 29.66R TC 21
MARION CLOUDY 79 75 87 SW8 29.69R HX 82 TC 26
CENTRALIA* MOCLDY 73 70 93 CALM 29.67R TC 23
SALEM* PTCLDY 72 71 99 MISG 29.66S TC 22
METROPOLIS* CLOUDY 80 73 80 S9G18 29.70S HX 84 TC 27
ILZ067-068-072-073-078-083-087-091-181100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 72 70 93 W8 N/A TC 22
FLORA* PTCLDY 73 72 94 W8 29.65S TC 23
FAIRFIELD* CLOUDY 76 70 83 CALM 29.66R TC 24
HARRISBURG* MOCLDY 78 76 95 W5 29.66S HX 80 TC 25
ROBINSON* CLEAR 70 70 100 SW9 29.63R TC 21
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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