462
ASUS43 KLOT 201103
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CDT WED MAY 20 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.
ILZ001-002-007-009-015-016-024-201200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 48 42 80 NW7 30.24R TC 9
STERLING* MOCLDY 47 43 86 N5 30.24R TC 8
SAVANNA* PTCLDY 46 42 86 N6 30.24S TC 8
ILZ003-004-008-010-011-017-018-201200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 43 42 97 CALM 30.24R TC 6
FREEPORT* PTCLDY 45 43 95 NW7 30.25R TC 7
ROCHELLE* PTCLDY 44 41 89 CALM 30.23R TC 7
DE KALB* PTCLDY 46 41 82 N5 30.23R TC 8
PERU* PTCLDY 48 45 87 N6 30.22R TC 9
ILZ005-006-012>014-019>023-201200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 52 42 69 N10 30.20R TC 11
CHICAGO-MIDWAY MOCLDY 55 40 56 N9 30.20R TC 13
AURORA PTCLDY 47 43 86 N6 30.21R TC 8
JOLIET* CLOUDY 55 44 66 N12G18 30.20R TC 13
WAUKEGAN PTCLDY 47 43 86 NW5 30.20R TC 8
DUPAGE AIRPORT MOCLDY 49 43 80 N8 30.20R TC 9
KANKAKEE* CLOUDY 56 47 73 NE12 30.20R TC 13
WHEELING PTCLDY 49 43 80 NW5 30.22R TC 9
MORRIS* PTCLDY 52 45 76 N3 30.20R TC 11
ROMEOVILLE* MOCLDY 55 45 67 N17 30.19S TC 13
LANSING* CLOUDY 53 42 66 N8 30.20R TC 12
NORTHERLY ISL* N/A 54 41 61 NW9 N/A TC 12
LMZ740>746-201200-
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 47 1020.4R 1/ 3
WAUKEGAN HARBOR 51 51 300/ 8/ 12 1021.7R 1
WILMETTE BUOY 53 10/ 12/ 16 1023.0R 1/ 3
CHICAGO BUOY 54 53 350/ 17/ 21 1021.2R 3/ 4
HARRISON CRIB 54 350/ 18/ 20 N/A
NORTHERLY ISL 54 330/ 12/ 14 N/A
CALUMET HARBOR 54 330/ 9/ 14 1022.2R
BURNS HARBOR 53 360/ 6/ 8 1022.7R
MICHIGAN CITY 52 360/ 18/ 21 1021.3R
ST. JOSEPH BUOY 50 360/ 12/ 16 1022.6R 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-201200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 48 43 82 N9 30.23S TC 9
GALESBURG* PTCLDY 45 42 90 NW5 30.25R TC 7
MACOMB* PTCLDY 47 46 93 CALM 30.27R TC 9
JACKSONVILLE* MOCLDY 51 46 82 N6 30.22R TC 11
PITTSFIELD* CLOUDY 52 46 80 N7 30.24S TC 11
ILZ028>032-037-038-041>044-048-051>054-059>061-201200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 51 47 84 MISG 30.21R TC 11
BLOOMINGTON MOCLDY 52 46 80 N15 30.20S TC 11
DECATUR CLOUDY 54 49 83 N8 30.18R TC 12
PEORIA PTCLDY 49 45 86 N7 30.21S TC 9
LACON* PTCLDY 49 43 80 N5 30.23R TC 10
LINCOLN* MOCLDY 54 48 82 N7 30.21S TC 12
SPRINGFIELD MOCLDY 53 46 77 N9 30.21R TC 12
TAYLORVILLE CLOUDY 54 48 82 N10 30.20R TC 12
ILZ033-039-045-046-055>057-062-063-201200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 55 49 80 N14 30.17R TC 13
DANVILLE* CLOUDY 57 52 82 N9 30.17R TC 14
MATTOON CLOUDY 56 51 84 N8 30.16R TC 13
PARIS* CLOUDY 57 51 81 N7 30.16R TC 14
ILZ079-100>102-201200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 55 49 79 N5 30.21R TC 13
BELLEVILLE CLOUDY 58 53 82 N10 30.17R TC 15
CAHOKIA* CLOUDY 57 50 77 N12 30.19R TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 67 67 97 N6 30.11S TC 20
EFFINGHAM* CLOUDY 58 53 84 N8 30.18S TC 14
MT. VERNON LGT RAIN 59 56 89 N7 30.15F TC 15
CENTRALIA* CLOUDY 60 55 82 N7 30.17R TC 16
SALEM* CLOUDY 60 56 87 MISG 30.16S TC 16
METROPOLIS* LGT RAIN 67 67 100 N6 30.11S TC 20
ILZ067-068-072-073-078-083-087-091-201200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 61 58 90 N13 30.11R TC 16
FLORA* LGT RAIN 59 57 94 N8 30.16R TC 15
FAIRFIELD* RAIN 60 57 91 N8G17 30.14R TC 15
HARRISBURG* RAIN 64 63 96 N6 30.13R TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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