287
ASUS43 KLOT 200501
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 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.
ILZ001-002-007-009-015-016-024-200600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 53 43 68 NW15G23 30.20S TC 12
STERLING* MOCLDY 54 46 74 NW8 30.20R TC 12
SAVANNA* PTCLDY 53 44 72 NW8 30.20R TC 12
ILZ003-004-008-010-011-017-018-200600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 53 46 77 NW8 30.18R TC 12
FREEPORT* PTCLDY 51 48 89 NW8 30.21R TC 11
ROCHELLE* CLOUDY 53 44 71 NW9 30.19R TC 12
DE KALB* CLOUDY 55 48 78 NW12 30.18R TC 13
PERU* CLOUDY 57 50 77 NW8 30.18R TC 14
ILZ005-006-012>014-019>023-200600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 61 50 67 NW12 30.13R TC 16
CHICAGO-MIDWAY CLOUDY 62 51 67 NW12 30.12S TC 17
AURORA CLOUDY 56 50 80 NW10 30.15R TC 13
JOLIET* CLOUDY 61 50 67 NW6 30.15R TC 16
WAUKEGAN MOCLDY 57 49 74 NW6 30.13R TC 14
DUPAGE AIRPORT CLOUDY 58 49 72 NW12 30.15R TC 14
KANKAKEE* CLOUDY 62 51 69 NW7 30.14R TC 16
WHEELING CLOUDY 61 50 67 NW9 30.14R TC 16
MORRIS* CLOUDY 61 50 67 NW10 30.14S TC 16
LANSING* MOCLDY 62 50 66 NW7 30.12S TC 17
NORTHERLY ISL* N/A 63 49 60 NW10 N/A TC 17
LMZ740>746-200600-
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 48 1018.5R 1
WAUKEGAN HARBOR 58 51 300/ 6/ 10 1019.8R 1
WILMETTE BUOY 57 350/ 4/ 6 1021.3R 1
CHICAGO BUOY 59 53 330/ 8/ 10 1018.4R 1
HARRISON CRIB 63 320/ 14/ 14 N/A
NORTHERLY ISL 63 290/ 8/ 12 N/A
CALUMET HARBOR 64 290/ 5/ 9 1019.7
BURNS HARBOR 58 60/ 4/ 5 1020.3R
MICHIGAN CITY 57 30/ 6/ 8 1019.0R
ST. JOSEPH BUOY 55 350/ 4/ 4 1020.2F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-200600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
GALESBURG* CLOUDY 52 45 77 NW7 30.21F TC 11
MACOMB* CLOUDY 54 49 85 CALM 30.23S TC 12
JACKSONVILLE* CLOUDY 57 51 81 N13 30.18F TC 14
PITTSFIELD* CLOUDY 57 51 81 N9 30.20F TC 14
ILZ028>032-037-038-041>044-048-051>054-059>061-200600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 58 53 81 MISG 30.17R TC 15
BLOOMINGTON CLOUDY 58 51 78 NW16 30.17S TC 14
DECATUR MOCLDY 60 52 74 MISG 30.15R TC 16
PEORIA CLOUDY 56 48 74 VRB6 30.20R TC 13
LACON* CLOUDY 55 46 71 NW6 30.19R TC 13
LINCOLN* CLOUDY 60 55 82 NW7 30.17S TC 16
SPRINGFIELD CLOUDY 59 53 80 NW10 30.16F TC 15
TAYLORVILLE MOCLDY 59 54 82 N13 30.15S TC 15
ILZ033-039-045-046-055>057-062-063-200600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 59 55 87 NW12 30.15R TC 15
DANVILLE* CLOUDY 63 56 80 NW8 30.13S TC 17
MATTOON CLOUDY 63 60 90 NW9 30.12S TC 17
PARIS* MOCLDY 63 58 84 N9 30.12R TC 17
ILZ079-100>102-200600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 62 56 83 NW7 30.15F TC 17
BELLEVILLE MOCLDY 65 62 91 N9 30.11S TC 18
CAHOKIA* CLOUDY 63 58 83 N12 30.13F TC 17
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-200600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 72 72 98 S5 30.09F TC 22
EFFINGHAM* CLOUDY 64 61 91 NW13 30.14R TC 18
MT. VERNON CLOUDY 67 64 90 VRB5 30.11S TC 19
CENTRALIA* CLOUDY 68 63 84 CALM 30.12S TC 20
SALEM* CLOUDY 68 65 89 MISG 30.12S TC 20
METROPOLIS* CLOUDY 70 70 100 CALM 30.10F TC 21
ILZ067-068-072-073-078-083-087-091-200600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE RAIN 70 69 97 N7 30.09S FOG TC 21
FLORA* LGT RAIN 68 63 83 N9 30.12R TC 20
FAIRFIELD* CLOUDY 69 65 88 N9 30.10S TC 21
HARRISBURG* CLOUDY 72 68 86 N8 30.08R TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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