467
ASUS43 KLOT 190101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 PM CDT MON MAY 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.
ILZ001-002-007-009-015-016-024-190200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 70 64 81 SE3 29.81F TC 21
STERLING* MOCLDY 73 63 70 CALM 29.85F TC 23
SAVANNA* MOCLDY 72 64 76 S9 29.83F TC 22
ILZ003-004-008-010-011-017-018-190200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 74 60 61 S10 29.87R TC 23
FREEPORT* MOCLDY 73 65 77 S9 29.86F TC 23
DE KALB* CLOUDY 70 65 84 S13 29.90R TC 21
PERU* CLOUDY N/A N/A N/A SE9 29.88S
ILZ005-006-012>014-019>023-190200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 72 63 73 S12G22 29.87R TC 22
CHICAGO-MIDWAY CLOUDY 71 64 78 S13G26 29.89R TC 22
AURORA CLOUDY 70 65 84 S8 29.89R TC 21
JOLIET* CLOUDY 71 66 84 SW10 29.92R TC 22
WAUKEGAN MOCLDY 73 64 73 SW14G25 29.85R TC 23
DUPAGE AIRPORT CLOUDY 70 65 84 S12 29.89R TC 21
KANKAKEE* CLOUDY 68 63 83 S8 29.94R TC 20
WHEELING CLOUDY 73 64 73 SW10G21 29.88R TC 23
MORRIS* CLOUDY 70 64 83 S12 29.91R TC 21
ROMEOVILLE* CLEAR 70 66 88 S12 29.90R TC 21
LANSING* CLOUDY 68 63 83 S16 29.93R TC 20
NORTHERLY ISL* N/A 71 61 70 S10 N/A TC 22
LMZ740>746-190200-
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 49 1012.6F 1/ 3
WAUKEGAN HARBOR 66 53 220/ 10/ 14 1011.7R 1/ 3
WILMETTE BUOY 64 210/ 10/ 14 1012.7R 1/ 3
CHICAGO BUOY 65 55 210/ 14/ 17 1010.7R 2/ 3
HARRISON CRIB 70 200/ 14/ 16 N/A
NORTHERLY ISL 72 190/ 15/ 22 N/A
CALUMET HARBOR 71 200/ 12/ 15 1011.9
BURNS HARBOR 69 200/ 9/ 13 1013.2R
MICHIGAN CITY 71 170/ 12/ 15 1010.9R
ST. JOSEPH BUOY 61 190/ 10/ 12 1013.0R 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-190200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 67 61 81 S13 29.84F TC 19
GALESBURG* MOCLDY 68 63 83 S6 29.87R TC 20
MACOMB* MOCLDY 67 64 90 CALM 29.87F TC 20
JACKSONVILLE* MOCLDY 67 61 82 S14 29.90R TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-190200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 65 64 97 SW8 29.95S TC 18
DECATUR CLOUDY 68 59 73 S23G37 29.83F TC 20
PEORIA NOT AVBL
SPRINGFIELD MOCLDY 67 61 81 S10 29.92R TC 19
TAYLORVILLE CLOUDY 64 63 94 S23G37 29.86F TC 18
ILZ033-039-045-046-055>057-062-063-190200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 66 63 90 SE15G29 29.88F TC 19
DANVILLE* CLOUDY 67 64 89 S12 30.00R TC 20
MATTOON CLOUDY 66 63 90 S13 29.94F TC 19
PARIS* CLOUDY 65 64 97 S17 29.99F TC 19
ILZ079-100>102-190200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 68 63 83 W8 29.93R TC 20
BELLEVILLE TSTM 72 66 83 SE22G43 29.87F TC 22
CAHOKIA* MOCLDY 68 63 84 MISG 29.92F TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 72 71 96 E9 30.03R TC 22
EFFINGHAM* LGT RAIN 64 64 100 S5 30.05R TC 18
MARION CLOUDY 68 64 88 E9 30.06R TC 20
MT. VERNON LGT RAIN 66 64 93 SE5 30.04F TC 19
CENTRALIA* CLOUDY 65 65 98 CALM 30.02F TC 19
SALEM* LGT RAIN 67 66 99 CALM 30.02F TC 19
ILZ067-068-072-073-078-083-087-091-190200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 68 66 93 SE10 30.06F TC 20
FLORA* MOCLDY 66 66 100 CALM 30.03F TC 19
FAIRFIELD* CLOUDY 67 64 90 E5 30.04F TC 19
HARRISBURG* CLOUDY 66 65 96 SE7 30.09R TC 19
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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