650
ASUS43 KLOT 211108
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CDT THU MAY 21 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.
ILZ001-002-007-009-015-016-024-211200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 47 36 65 NE9 30.27S TC 8
STERLING* PTCLDY 47 34 60 NE10 30.29R TC 8
SAVANNA* PTCLDY 46 34 62 NE8 30.30S TC 8
ILZ003-004-008-010-011-017-018-211200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 46 32 58 NE6 30.32S TC 8
FREEPORT* PTCLDY 44 36 73 NE8 30.32S TC 7
ROCHELLE* PTCLDY 46 31 57 NE12 30.29S TC 8
DE KALB* PTCLDY 46 33 58 NE13G18 30.30S TC 8
PERU* PTCLDY 48 37 66 NE13 30.25F TC 9
ILZ005-006-012>014-019>023-211200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 48 36 63 NE12 30.30S TC 9
CHICAGO-MIDWAY PTCLDY 50 38 63 NE15 30.30R TC 10
AURORA PTCLDY 47 36 65 E12 30.27S TC 8
JOLIET* PTCLDY 51 38 61 NE9G17 30.28S TC 11
WAUKEGAN PTCLDY 45 36 70 NE12 30.32R TC 7
DUPAGE AIRPORT PTCLDY 47 36 65 NE10G21 30.28S TC 8
KANKAKEE* MOCLDY 48 42 80 NE8 30.28S TC 9
WHEELING PTCLDY 46 36 68 NE8 30.32R TC 8
MORRIS* CLEAR 50 37 62 E8 30.26F TC 10
ROMEOVILLE* MOCLDY 50 36 57 NE12 30.29R TC 10
LANSING* CLOUDY 50 41 69 NE8 30.29S TC 10
NORTHERLY ISL* N/A 49 40 71 NE14 N/A TC 9
LMZ740>746-211200-
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 1024.2R 3/ 4
WAUKEGAN HARBOR 47 48 340/ 17/ 21 1025.1 3/ 5
WILMETTE BUOY 48 70/ 17/ 21 1026.9R 3/ 4
CHICAGO BUOY 51 54 30/ 14/ 17 1024.9R 4/ 5
HARRISON CRIB 50 40/ 14/ 16 N/A
NORTHERLY ISL 49 10/ 7/ 15 N/A
CALUMET HARBOR 50 40/ 8/ 12 1026.0R
BURNS HARBOR 52 70/ 6/ 8 1026.1R
MICHIGAN CITY 50 50/ 10/ 11 1025.3R
ST. JOSEPH BUOY 49 60/ 10/ 14 1026.5R 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-211200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 52 41 66 E12 30.19F TC 11
GALESBURG* CLEAR 45 35 67 NE10 30.26F TC 7
MACOMB* PTCLDY 46 39 78 CALM 30.26F TC 8
JACKSONVILLE* CLOUDY 50 40 67 NE10 30.21S TC 10
PITTSFIELD* CLOUDY 52 40 64 NE9 30.21S TC 11
ILZ028>032-037-038-041>044-048-051>054-059>061-211200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 47 40 76 MISG 30.25F TC 8
BLOOMINGTON PTCLDY 44 38 79 NE9 30.24S TC 7
DECATUR MOCLDY 48 41 76 NE8 30.20F TC 9
PEORIA CLEAR 46 38 73 NE7 30.24S TC 8
LACON* CLEAR 44 36 73 CALM 30.25S TC 7
LINCOLN* MOCLDY 49 39 68 NE8 30.22S TC 10
SPRINGFIELD CLOUDY 50 38 63 NE8 30.21S TC 10
TAYLORVILLE CLOUDY 48 41 76 NE6 30.20S TC 9
ILZ033-039-045-046-055>057-062-063-211200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 50 41 71 NE12 30.21S TC 10
DANVILLE* CLOUDY 51 46 81 NE9 30.24R TC 11
RANTOUL* CLOUDY 48 39 70 NE12 30.23S TC 9
MATTOON CLOUDY 51 45 79 N9 30.18R TC 11
PARIS* CLOUDY 52 46 80 NE9 30.20R TC 11
ILZ079-100>102-211200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 51 43 74 N6 30.19R TC 11
BELLEVILLE PTCLDY 55 49 81 N6 30.16R TC 13
CAHOKIA* PTCLDY 54 47 77 N5 30.17R TC 12
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 62 59 90 N5 30.12R TC 17
EFFINGHAM* MOCLDY 51 47 85 N5 30.19S TC 11
MARION CLOUDY 59 57 92 N6 30.14S TC 15
MT. VERNON CLOUDY 56 48 74 N7 30.15R TC 13
CENTRALIA* CLOUDY 55 47 74 CALM 30.16S TC 13
SALEM* CLOUDY 55 48 78 MISG 30.16S TC 13
METROPOLIS* CLOUDY 61 61 100 N7 30.11R TC 16
ILZ067-068-072-073-078-083-087-091-211200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 59 53 80 NE9 30.14S TC 15
FLORA* CLOUDY 54 48 82 N8 30.17R TC 12
FAIRFIELD* CLOUDY 57 50 77 N7 30.14R TC 14
HARRISBURG* CLOUDY 60 57 91 NE6 30.13S TC 16
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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