525
ASUS43 KLOT 211712
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM 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.
ILZ001-002-007-009-015-016-024-211800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 61 45 55 E9 30.25R TC 16
STERLING* PTSUNNY 63 46 54 E17 30.25S TC 17
SAVANNA* MOSUNNY 62 41 46 E13G18 30.27S TC 17
ILZ003-004-008-010-011-017-018-211800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 60 40 47 NE12G20 30.29R TC 16
FREEPORT* PTSUNNY 59 39 47 NE8 30.30S TC 15
ROCHELLE* PTSUNNY 62 42 48 E13G18 30.27S TC 17
DE KALB* PTSUNNY 59 46 61 E14G21 30.28S TC 15
PERU* PTSUNNY 64 46 52 E13G20 30.24S TC 18
ILZ005-006-012>014-019>023-211800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 56 44 64 NE14 30.29S TC 13
CHICAGO-MIDWAY PTSUNNY 57 45 64 NE10 30.28S TC 14
AURORA PTSUNNY 61 48 62 E16G30 30.27F TC 16
JOLIET* MOSUNNY 63 49 61 NE13G18 30.26S TC 17
WAUKEGAN CLOUDY 48 37 65 NE12 30.32S TC 9
DUPAGE AIRPORT PTSUNNY 58 46 64 E12G17 30.28F TC 14
KANKAKEE* PTSUNNY 67 46 46 E14G22 30.24S TC 19
WHEELING CLOUDY 51 41 68 NE15 30.32S TC 11
MORRIS* MOSUNNY 64 46 52 NE8G20 30.24S TC 18
ROMEOVILLE* MOSUNNY 61 48 63 NE13 30.27F TC 16
LANSING* MOSUNNY 61 49 63 NE10 30.27S TC 16
NORTHERLY ISL* N/A 53 45 74 N13 N/A TC 12
LMZ740>746-211800-
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 1023.4 3/ 4
WAUKEGAN HARBOR 46 48 350/ 14/ 17 1025.1 3/ 4
WILMETTE BUOY 48 80/ 16/ 21 1026.2F 3/ 5
CHICAGO BUOY 49 54 20/ 14/ 19 1024.5 3/ 5
HARRISON CRIB 48 360/ 14/ 15 N/A
NORTHERLY ISL 53 350/ 11/ 12 N/A
CALUMET HARBOR 54 360/ 12/ 14 1025.5
BURNS HARBOR 54 20/ 9/ 10 1025.1F
MICHIGAN CITY 56 10/ 14/ 15 1024.1F
ST. JOSEPH BUOY 58 50/ 8/ 12 1025.7F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-211800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 64 48 56 VRB5 30.19S TC 18
GALESBURG* CLOUDY 63 49 59 E10 30.25R TC 17
MACOMB* PTSUNNY 66 49 54 E14 30.24R TC 19
JACKSONVILLE* MOSUNNY 67 48 49 E10G16 30.18F TC 20
PITTSFIELD* MOSUNNY 66 49 54 NE10 30.20F TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-211800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 69 45 42 MISG 30.23R TC 20
BLOOMINGTON SUNNY 68 45 43 E20G28 30.21S TC 20
DECATUR MOSUNNY 67 46 47 E20G26 30.19R TC 19
PEORIA PTSUNNY 66 48 52 E15G24 30.21S TC 19
LACON* PTSUNNY 66 46 48 E12G20 30.22S TC 19
LINCOLN* SUNNY 69 47 45 NE13G23 30.19F TC 21
SPRINGFIELD MOSUNNY 68 47 46 E18 30.17F TC 20
TAYLORVILLE MOSUNNY 66 52 59 NE10 30.18S TC 19
ILZ033-039-045-046-055>057-062-063-211800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 67 45 45 E15G30 30.19R TC 19
DANVILLE* PTSUNNY 66 44 44 NE18G29 30.22R TC 19
RANTOUL* SUNNY 66 42 41 E16G26 30.20S TC 19
MATTOON CLOUDY 60 49 66 NE16 30.17R TC 16
PARIS* CLOUDY 60 48 62 E12 30.19S TC 16
ILZ079-100>102-211800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 66 54 63 E9 30.15F TC 19
CAHOKIA* PTSUNNY 68 56 65 N9 30.13F TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 65 57 75 VRB7 30.12S TC 18
CAIRO* CLOUDY 68 62 83 NE8 30.09F TC 20
EFFINGHAM* CLOUDY 62 52 69 NE8 30.18S TC 17
MARION CLOUDY 64 57 77 E7 30.12S TC 18
MT. VERNON CLOUDY 62 56 80 NE9 30.14S TC 17
CENTRALIA* CLOUDY 62 55 76 CALM 30.15S TC 17
SALEM* CLOUDY 63 56 78 MISG 30.15S TC 17
METROPOLIS* CLOUDY 65 62 88 N5 30.10S TC 18
ILZ067-068-072-073-078-083-087-091-211800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 64 53 67 E15 30.15R TC 18
FLORA* CLOUDY 63 55 77 NE8 30.16R TC 17
FAIRFIELD* CLOUDY 63 55 77 NE8 30.14R TC 17
HARRISBURG* CLOUDY 63 60 87 NE3 30.12S TC 17
ROBINSON* CLOUDY 64 54 68 NE12 30.15S TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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