518
ASUS43 KLOT 200710
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-200800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 51 42 71 NW7 30.19F TC 11
STERLING* PTCLDY 51 45 79 NW10 30.19F TC 11
SAVANNA* PTCLDY 50 43 76 N7 30.19F TC 10
ILZ003-004-008-010-011-017-018-200800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 50 43 77 NW8 30.17F TC 10
FREEPORT* PTCLDY 48 47 94 NW6 30.20F TC 9
ROCHELLE* PTCLDY 50 44 79 NW8 30.17F TC 10
DE KALB* PTCLDY 51 45 79 N7 30.17S TC 10
PERU* CLOUDY 54 46 76 NW9 30.18R TC 12
ILZ005-006-012>014-019>023-200800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 58 45 62 N14 30.12F TC 14
CHICAGO-MIDWAY CLOUDY 60 50 69 NW10 30.12F TC 16
AURORA PTCLDY 52 48 86 N9 30.14F TC 11
JOLIET* CLOUDY 58 50 75 N5 30.14S TC 15
WAUKEGAN CLEAR 53 45 74 NW5 30.14F TC 12
DUPAGE AIRPORT CLOUDY 55 46 71 NW12 30.13F TC 13
KANKAKEE* MOCLDY 59 49 71 NW9 30.13F TC 15
WHEELING CLOUDY 57 46 66 N13 30.15S TC 14
MORRIS* CLOUDY 55 48 76 N5 30.13F TC 13
ROMEOVILLE* CLOUDY 57 50 77 NW12G17 30.14S TC 14
LANSING* CLOUDY 59 52 75 N3 30.13S TC 15
NORTHERLY ISL* N/A 58 48 69 N12 N/A TC 14
LMZ740>746-200800-
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 1019.0 1
WAUKEGAN HARBOR 54 51 310/ 8/ 12 1020.3 1
WILMETTE BUOY 56 10/ 14/ 17 1021.3F 1/ 3
CHICAGO BUOY 57 53 360/ 16/ 19 1018.9 1/ 3
HARRISON CRIB 57 350/ 16/ 18 N/A
NORTHERLY ISL 61 310/ 8/ 13 N/A
CALUMET HARBOR 62 320/ 4/ 7 1020.1
BURNS HARBOR 57 60/ 4/ 5 1020.7F
MICHIGAN CITY 56 40/ 6/ 6 1019.3F
ST. JOSEPH BUOY 53 300/ 4/ 4 1020.6F 1/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-200800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
GALESBURG* MOCLDY 50 43 77 NW8 30.22R TC 10
MACOMB* CLOUDY 52 50 92 CALM 30.24R TC 11
JACKSONVILLE* MOCLDY 54 48 81 N14 30.17F TC 12
PITTSFIELD* CLOUDY 55 48 78 N10 30.20S TC 13
ILZ028>032-037-038-041>044-048-051>054-059>061-200800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 55 49 80 MISG 30.16R TC 13
BLOOMINGTON MOCLDY 54 49 83 N12 30.16S TC 12
DECATUR MOCLDY 58 52 80 MISG 30.14S TC 14
PEORIA CLOUDY 54 46 74 VRB5 30.19R TC 12
SPRINGFIELD CLOUDY 56 48 74 N12 30.16S TC 13
TAYLORVILLE MOCLDY 55 52 88 N12 30.15S TC 13
ILZ033-039-045-046-055>057-062-063-200800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 57 53 86 N9 30.12F TC 14
DANVILLE* PTCLDY 60 53 79 NW10 30.13S TC 15
RANTOUL* MOCLDY 57 51 81 NW9 30.13F TC 14
MATTOON CLOUDY 60 54 80 N10 30.13R TC 16
PARIS* CLOUDY 61 55 81 N6 30.13R TC 16
ILZ079-100>102-200800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOCLDY 59 52 78 NW3 30.17R TC 15
BELLEVILLE CLOUDY 62 58 86 N13 30.12 TC 17
CAHOKIA* CLOUDY 61 55 81 N12 30.15R TC 16
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-200800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 71 70 96 CALM 30.07F TC 22
MT. VERNON CLOUDY 66 63 90 CALM 30.11R TC 19
CENTRALIA* CLOUDY 64 60 85 N10 30.12R TC 18
SALEM* CLOUDY 64 61 88 MISG 30.12S TC 18
METROPOLIS* CLOUDY 70 70 100 CALM 30.07F TC 21
ILZ067-068-072-073-078-083-087-091-200800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 67 65 93 N8 30.07F TC 19
FLORA* MOCLDY 64 61 88 N12 30.11S TC 18
FAIRFIELD* CLOUDY 66 62 86 N8 30.09S TC 19
HARRISBURG* CLOUDY 70 67 90 N5 30.10S TC 21
ROBINSON* MOCLDY 66 63 88 N12 30.08F TC 19
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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