567
ASUS43 KLOT 182312
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 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.
ILZ001-002-007-009-015-016-024-190000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 73 64 73 S7 29.82S TC 23
STERLING* CLOUDY 76 62 62 SW9 29.84F TC 24
SAVANNA* PTSUNNY 76 62 61 SW9 29.81F TC 25
ILZ003-004-008-010-011-017-018-190000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 79 61 53 SW13 29.83F HX 80 TC 26
FREEPORT* CLOUDY 77 65 65 SW8 29.84S TC 25
DE KALB* CLOUDY 74 65 72 S15 29.87S TC 23
PERU* CLOUDY 73 64 73 S10 29.86F TC 23
ILZ005-006-012>014-019>023-190000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 76 64 66 S14G23 29.85S TC 24
CHICAGO-MIDWAY CLOUDY 75 63 66 SW17G29 29.87S TC 24
AURORA CLOUDY 74 65 73 S8 29.86F TC 23
JOLIET* CLOUDY 75 66 74 S14 29.89S TC 24
WAUKEGAN PTSUNNY 77 64 64 SW20G30 29.82R TC 25
DUPAGE AIRPORT PTSUNNY 74 64 71 SW16G22 29.85F TC 23
KANKAKEE* CLOUDY 70 64 81 S10G17 29.94S TC 21
WHEELING PTSUNNY 77 64 64 SW10G24 29.85S TC 25
MORRIS* CLOUDY 73 64 73 S13 29.88S TC 23
ROMEOVILLE* SUNNY 73 68 83 S17G26 29.89S TC 23
LANSING* CLOUDY 71 63 74 SW16G28 29.92S TC 22
NORTHERLY ISL* N/A 75 61 61 S17 N/A TC 24
LMZ740>746-190000-
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 50 1021.1 2/ 4
WAUKEGAN HARBOR 68 53 210/ 12/ 16 1011.0 1/ 3
WILMETTE BUOY 67 210/ 14/ 17 1012.8R 1/ 3
CHICAGO BUOY 68 55 210/ 17/ 19 1010.4 2/ 2
HARRISON CRIB 73 200/ 24/ 27 N/A
NORTHERLY ISL 76 200/ 15/ 21 N/A
CALUMET HARBOR 74 190/ 12/ 17 1012.3R
BURNS HARBOR 72 200/ 13/ 20 1013.2R
MICHIGAN CITY 74 200/ 22/ 25 1011.3R
ST. JOSEPH BUOY 62 200/ 10/ 14 1013.4R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-190000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 66 62 87 S13G21 29.83F TC 19
GALESBURG* CLOUDY 71 64 79 S6 29.87F TC 22
MACOMB* CLOUDY 70 66 89 CALM 29.89R TC 21
JACKSONVILLE* PTSUNNY 68 60 75 W17G24 29.85F TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-190000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 69 64 84 SW12G18 29.92F TC 21
DECATUR CLOUDY 67 63 87 MISG 29.93F TC 19
PEORIA NOT AVBL
SPRINGFIELD PTSUNNY 67 62 84 S20 29.87F TC 19
TAYLORVILLE CLOUDY 64 63 94 S16 29.97S TC 18
ILZ033-039-045-046-055>057-062-063-190000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN LGT RAIN 67 65 93 S21 29.93F TC 19
DANVILLE* CLOUDY 67 65 94 S14 29.96F TC 20
MATTOON LGT RAIN 66 64 93 S13 29.98F TC 19
PARIS* DRIZZLE 66 65 98 SW15 30.02S TC 19
ILZ079-100>102-190000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON TSTM 66 63 88 S13 30.03R TC 19
BELLEVILLE LGT RAIN 67 66 97 SE8 30.04 TC 19
CAHOKIA* LGT RAIN 66 64 93 SE9 30.02F TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 87 69 54 SW5 29.99F HX 90 TC 30
EFFINGHAM* CLOUDY 66 66 100 SE7 30.04F TC 19
MARION CLOUDY 70 66 88 SE9 30.07R TC 21
MT. VERNON N/A 67 65 93 VRB7 30.08R TC 19
CENTRALIA* LGT RAIN 66 66 97 N8 30.08R TC 19
SALEM* RAIN 67 66 96 MISG 30.10R TC 20
ILZ067-068-072-073-078-083-087-091-190000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FLORA* LGT RAIN 66 N/A N/A SW12 30.10R TC 19
FAIRFIELD* CLOUDY 68 64 86 NW3 30.07R TC 20
HARRISBURG* CLOUDY 68 66 93 N10 30.06R TC 20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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