278
ASUS43 KLOT 181458
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CDT WED MAR 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.
ILZ001-002-007-009-015-016-024-181600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 33 22 63 S8 29.96S WCI 26 TC 1
ILZ003-004-008-010-011-017-018-181600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 29 23 78 S12 30.01S WCI 19 TC -2
ILZ005-006-012>014-019>023-181600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 27 20 75 S12G22 30.02S WCI 17 TC -3
CHICAGO-MIDWAY NOT AVBL
AURORA CLOUDY 29 22 75 S16 30.01S WCI 17 TC -2
WAUKEGAN CLOUDY 27 21 78 S16 30.01S WCI 15 TC -3
DUPAGE AIRPORT CLOUDY 27 22 81 S13G26 30.01S WCI 16 TC -3
WHEELING CLOUDY 27 21 78 S17G25 30.04S WCI 14 TC -3
ROMEOVILLE* CLOUDY 28 23 80 S16G23 30.04F WCI 17 TC -2
NORTHERLY ISL* N/A 27 21 78 S13 N/A WCI 16 TC -3
LMZ740>746-181600-
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)
HARRISON CRIB 27 190/ 24/ 27 N/A
NORTHERLY ISL 27 180/ 14/ 16 N/A
CALUMET HARBOR 160/ 12/ 16 1017.3
BURNS HARBOR 27 170/ 7/ 12 1018.6R
MICHIGAN CITY 26 160/ 12/ 18 1018.8F
ILZ025>027-034>036-040-047-049-050-058-095>099-181600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-181600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD MOSUNNY 39 25 57 S14G24 30.01S WCI 31 TC 4
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MATTOON CLOUDY 35 24 64 S16G30 30.04F WCI 25 TC 2
ILZ079-100>102-181600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 43 28 56 S14 30.03S TC 6
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 44 27 51 S14 30.10S TC 7
ILZ067-068-072-073-078-083-087-091-181600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 37 23 56 S18 30.13S WCI 27 TC 3
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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