312
ASUS43 KLOT 202311
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 PM 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.
ILZ001-002-007-009-015-016-024-210000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 66 45 46 N6 30.18F TC 19
STERLING* SUNNY 70 41 34 N8 30.20S TC 21
SAVANNA* SUNNY 67 41 39 N9 30.21S TC 19
ILZ003-004-008-010-011-017-018-210000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 63 41 44 NE10 30.23R TC 17
FREEPORT* SUNNY 65 42 42 N9 30.23S TC 19
ROCHELLE* SUNNY 64 40 42 E14 30.22R TC 18
DE KALB* SUNNY 58 38 47 E15G21 30.25R TC 15
PERU* MOSUNNY 68 43 40 NE14 30.19S TC 20
ILZ005-006-012>014-019>023-210000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 56 34 43 N17 30.25S TC 13
CHICAGO-MIDWAY MOSUNNY 57 36 45 NE16G25 30.25R TC 14
AURORA SUNNY 58 38 47 NE16 30.24R TC 14
JOLIET* SUNNY 60 39 45 E13 30.24S TC 16
WAUKEGAN SUNNY 52 34 50 NE13 30.27R TC 11
DUPAGE AIRPORT SUNNY 56 37 49 E13G23 30.25R TC 13
KANKAKEE* SUNNY 60 38 43 N20G26 30.22R TC 16
WHEELING MOSUNNY 54 32 43 NE12G22 30.28R TC 12
MORRIS* SUNNY 61 39 44 NE6 30.22R TC 16
ROMEOVILLE* SUNNY 59 37 44 NE17 30.24R TC 15
LANSING* SUNNY 56 37 49 NE16 30.24F TC 13
NORTHERLY ISL* N/A 54 38 54 MISG N/A TC 12
LMZ740>746-210000-
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 47 1022.7 2/ 4
WAUKEGAN HARBOR 49 51 350/ 14/ 17 1023.9 2/ 4
WILMETTE BUOY 50 60/ 16/ 19 1025.5R 3/ 4
CHICAGO BUOY 52 55 20/ 19/ 23 1023.1 3/ 4
HARRISON CRIB 51 10/ 17/ 18 N/A
NORTHERLY ISL 55 360/ 10/ 17 N/A
CALUMET HARBOR 54 350/ 11/ 17 1024.3
BURNS HARBOR 51 20/ 10/ 12 1024.4S
MICHIGAN CITY 51 20/ 21/ 23 1023.2F
ST. JOSEPH BUOY 51 10/ 17/ 21 1024.5F 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 66 49 54 NE8 30.16F TC 19
GALESBURG* SUNNY 68 42 39 NE7G17 30.18F TC 20
MACOMB* SUNNY 68 46 44 CALM 30.19F TC 20
JACKSONVILLE* MOSUNNY 68 49 50 NE8 30.15S TC 20
PITTSFIELD* CLOUDY 67 50 53 E6 30.17R TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-210000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC SUNNY 65 43 44 MISG 30.20R TC 19
BLOOMINGTON MOSUNNY 66 44 45 NE20 30.18R TC 19
DECATUR MOSUNNY 68 49 50 NE15 30.14S TC 20
PEORIA SUNNY 69 47 45 NE8 30.15F TC 21
LACON* SUNNY 67 44 43 NE6 30.17F TC 20
LINCOLN* MOSUNNY 71 47 41 NE7 30.14F TC 22
SPRINGFIELD MOSUNNY 70 48 45 NE8 30.14F TC 21
TAYLORVILLE PTSUNNY 68 52 56 NE8 30.15S TC 20
ILZ033-039-045-046-055>057-062-063-210000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 68 48 48 NE17 30.15R TC 20
DANVILLE* PTSUNNY 67 47 48 NE12 30.15S TC 20
RANTOUL* MOSUNNY 65 44 45 N13 30.17R TC 19
MATTOON PTSUNNY 67 52 58 NE10 30.13S TC 19
PARIS* PTSUNNY 67 52 59 NE7 30.15R TC 19
ILZ079-100>102-210000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BELLEVILLE CLOUDY 67 58 72 N9 30.11S TC 19
CAHOKIA* CLOUDY 66 55 67 NE9 30.13S TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 66 57 72 NE8 30.10F TC 19
CAIRO* PTSUNNY 67 61 80 N13 30.08F TC 19
EFFINGHAM* CLOUDY 68 58 69 NE9 30.14F TC 20
MARION CLOUDY 64 59 82 NE9 30.10F TC 18
MT. VERNON CLOUDY 66 59 78 NE6 30.12F TC 19
CENTRALIA* CLOUDY 67 57 70 CALM 30.13S TC 20
SALEM* CLOUDY 68 58 70 MISG 30.12F TC 20
METROPOLIS* CLOUDY 63 63 100 N12G17 30.09F TC 17
ILZ067-068-072-073-078-083-087-091-210000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 64 58 80 NE9 30.12F TC 18
FLORA* PTSUNNY 66 57 72 NE10 30.12F TC 19
FAIRFIELD* CLOUDY 66 58 76 N8 30.11F TC 19
HARRISBURG* CLOUDY 64 60 87 N7 30.10F TC 18
ROBINSON* CLOUDY 64 59 82 NE12 30.13R TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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