062
ASUS43 KLOT 181756
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 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.
ILZ001-002-007-009-015-016-024-181900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 74 64 71 SW10G20 29.81S TC 23
6HR MIN TEMP: 64; 6HR MAX TEMP: 74; 6HR PCP: 0.18;
ILZ003-004-008-010-011-017-018-181900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD NOT AVBL
PERU* CLOUDY 75 66 73 S16 29.83R TC 24
ILZ005-006-012>014-019>023-181900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 73 69 87 SE6 29.81R TC 23
6HR MIN TEMP: 68; 6HR MAX TEMP: 76; 6HR PCP: 0.39;
CHICAGO-MIDWAY NOT AVBL
AURORA CLOUDY 76 66 71 SW8G21 29.82S TC 24
6HR MIN TEMP: 67; 6HR MAX TEMP: 76; 6HR PCP: 0.86;
WAUKEGAN MOSUNNY 72 69 90 SW5 29.80R TC 22
6HR MIN TEMP: 69; 6HR MAX TEMP: 76; 6HR PCP: 0.07;
DUPAGE AIRPORT PTSUNNY 76 68 76 S6 29.82R TC 24
6HR MIN TEMP: 69; 6HR MAX TEMP: 76; 6HR PCP: 0.33;
WHEELING PTSUNNY 72 69 90 S6 29.83R TC 22
6HR MIN TEMP: 68; 6HR MAX TEMP: 77; 6HR PCP: 0.47;
MORRIS* CLOUDY 72 66 83 S10 29.82R TC 22
ROMEOVILLE* MOSUNNY 73 70 88 SW6 29.84R TC 23
NORTHERLY ISL* N/A 64 62 93 SE1 N/A TC 18
LMZ740>746-181900-
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 1016.3R 2/ 3
WAUKEGAN HARBOR 59 51 220/ 4/ 8 1010.5R 1/ 3
WILMETTE BUOY 59 180/ 10/ 12 1010.9F 1/ 3
CHICAGO BUOY 60 55 1008.6F 1
HARRISON CRIB 67 140/ 22/ 23 N/A
NORTHERLY ISL 61 100/ 6/ 32 N/A
CALUMET HARBOR 110/ 5/ 6 1010.1
BURNS HARBOR 69 160/ 5/ 8 1011.5F
MICHIGAN CITY 140/ 8/ 10 1010.8R
ST. JOSEPH BUOY 58 170/ 12/ 17 1013.5R 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-181900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ILZ028>032-037-038-041>044-048-051>054-059>061-181900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PEORIA NOT AVBL
SPRINGFIELD RAIN 67 64 90 S16 29.93F TC 19
6HR MIN TEMP: 65; 6HR MAX TEMP: 77; 6HR PCP: 0.53;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-181900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MATTOON TSTM 67 66 97 SE5 30.02R FOG TC 19
ILZ079-100>102-181900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 66 64 94 CALM 30.03R THUNDER TC 19
BELLEVILLE TSTM 68 66 94 NE9 29.98 VSB 3/4 TC 20
CAHOKIA* TSTM 67 66 97 NE5 30.01R TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 81 72 74 S14G25 30.00S HX 84 TC 27
MARION CLOUDY 79 72 78 SW12 30.01S HX 82 TC 26
MT. VERNON CLOUDY 77 72 83 SW14 30.00R TC 25
ILZ067-068-072-073-078-083-087-091-181900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 73 70 88 S14 30.01R TC 23
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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