059
ASUS43 KLOT 211312
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-211400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 50 35 56 NE15 30.27S TC 10
STERLING* PTSUNNY 52 35 52 E15 30.30R TC 11
SAVANNA* CLOUDY 48 32 53 NE12 30.32R TC 9
ILZ003-004-008-010-011-017-018-211400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 49 32 52 VRB7 30.33R TC 9
FREEPORT* CLOUDY 47 34 60 NE13 30.34S TC 9
ROCHELLE* PTSUNNY 51 34 50 NE17 30.31R TC 11
DE KALB* PTSUNNY 50 37 62 E13 30.31S TC 10
PERU* PTSUNNY 55 39 54 NE17 30.28R TC 13
ILZ005-006-012>014-019>023-211400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 49 38 65 NE15 30.31R TC 9
CHICAGO-MIDWAY CLOUDY 52 42 69 NE13 30.31R TC 11
AURORA MOSUNNY 51 39 63 E15 30.30R TC 11
JOLIET* PTSUNNY 54 43 67 NE9 30.29S TC 12
WAUKEGAN MOSUNNY 47 36 65 NE10 30.34R TC 8
DUPAGE AIRPORT MOSUNNY 50 39 66 NE10 30.30R TC 10
KANKAKEE* CLOUDY 54 43 68 E13 30.29R TC 12
WHEELING MOSUNNY 48 37 65 NE10G22 30.34R TC 9
MORRIS* CLOUDY 54 41 62 E9 30.28S TC 12
ROMEOVILLE* CLOUDY 52 43 71 NE15 30.30S TC 11
LANSING* CLOUDY 55 45 69 E7 30.30R TC 13
NORTHERLY ISL* N/A 49 42 77 NE8 N/A TC 9
LMZ740>746-211400-
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 1024.5 3/ 4
WAUKEGAN HARBOR 46 48 350/ 14/ 19 1025.8 3/ 4
WILMETTE BUOY 47 80/ 17/ 23 1027.0R 3/ 5
CHICAGO BUOY 50 54 60/ 16/ 19 1025.1 3/ 5
HARRISON CRIB 49 40/ 16/ 17 N/A
NORTHERLY ISL 49 30/ 6/ 14 N/A
CALUMET HARBOR 51 40/ 6/ 10 1026.1
BURNS HARBOR 52 60/ 4/ 5 1026.4R
MICHIGAN CITY 52 70/ 8/ 9 1025.4F
ST. JOSEPH BUOY 52 100/ 8/ 10 1026.8S 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-211400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 53 41 63 E15 30.18F TC 12
GALESBURG* PTSUNNY 50 38 62 E13 30.26F TC 10
MACOMB* PTSUNNY 51 41 69 E16 30.26F TC 11
JACKSONVILLE* MOSUNNY 52 41 65 NE12 30.20F TC 11
PITTSFIELD* SUNNY 53 42 64 NE12 30.21S TC 12
ILZ028>032-037-038-041>044-048-051>054-059>061-211400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOSUNNY 55 44 67 MISG 30.26S TC 13
BLOOMINGTON MOSUNNY 54 45 71 NE14 30.25R TC 12
DECATUR SUNNY 55 47 74 NE10 30.21S TC 13
PEORIA MOSUNNY 52 41 66 NE9 30.27R TC 11
LACON* PTSUNNY 51 38 62 NE8 30.27R TC 11
LINCOLN* MOSUNNY 56 45 68 NE8 30.24S TC 13
SPRINGFIELD PTSUNNY 55 42 61 NE9 30.22S TC 13
TAYLORVILLE SUNNY 55 48 76 NE7 30.20F TC 13
ILZ033-039-045-046-055>057-062-063-211400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 54 46 74 NE14 30.22S TC 12
DANVILLE* MOSUNNY 56 45 65 E14 30.25R TC 14
RANTOUL* SUNNY 55 43 64 E17 30.23F TC 13
MATTOON MOSUNNY 56 49 77 NE12 30.19S TC 13
PARIS* CLOUDY 56 49 78 E10 30.22R TC 13
ILZ079-100>102-211400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 55 46 71 NE9 30.17F TC 13
BELLEVILLE SUNNY 58 50 76 NE9 30.13F TC 14
CAHOKIA* SUNNY 57 47 69 NE7 30.16F TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-211400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 59 54 82 N8 30.13S TC 15
CAIRO* CLOUDY 63 59 88 NE8 30.11F TC 17
EFFINGHAM* CLOUDY 56 51 83 N3 30.20F TC 13
MARION CLOUDY 61 57 88 N9 30.13S TC 16
MT. VERNON CLOUDY 57 50 77 N8 30.16S TC 14
CENTRALIA* CLOUDY 57 49 75 CALM 30.15F TC 14
SALEM* CLOUDY 57 51 78 MISG 30.16F TC 14
METROPOLIS* CLOUDY 61 61 100 N6 30.12S TC 16
ILZ067-068-072-073-078-083-087-091-211400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 58 52 80 NE8 30.17R TC 14
FLORA* CLOUDY 55 50 82 NE9 30.18S TC 13
FAIRFIELD* CLOUDY 56 49 77 N7 30.16S TC 14
HARRISBURG* CLOUDY 61 57 86 NE7 30.14S TC 16
ROBINSON* CLOUDY 59 52 77 NE14G21 30.18R TC 15
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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