337
ASUS43 KLOT 201611
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 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.
ILZ001-002-007-009-015-016-024-201700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 59 43 55 NE6G17 30.26F TC 15
STERLING* SUNNY 62 44 51 N6 30.26F TC 17
SAVANNA* CLOUDY 59 41 50 NE7 30.28S TC 15
ILZ003-004-008-010-011-017-018-201700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 61 41 47 N8G18 30.26F TC 16
FREEPORT* PTSUNNY 59 44 57 NE6 30.28F TC 15
ROCHELLE* MOSUNNY 61 40 45 NE15 30.25F TC 16
DE KALB* MOSUNNY 59 42 53 NE9G18 30.26S TC 15
PERU* SUNNY 63 43 48 NE13G18 30.24S TC 17
ILZ005-006-012>014-019>023-201700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 57 41 55 NE16 30.25S TC 14
CHICAGO-MIDWAY PTSUNNY 58 41 53 N15G25 30.25S TC 14
AURORA MOSUNNY 60 46 59 E8 30.24F TC 16
JOLIET* CLOUDY 61 47 60 NE8 30.24S TC 16
WAUKEGAN MOSUNNY 55 42 61 NE13G21 30.27S TC 13
DUPAGE AIRPORT MOSUNNY 59 45 59 E10 30.24F TC 15
KANKAKEE* PTSUNNY 61 46 56 N10G18 30.23S TC 16
WHEELING CLOUDY 57 42 57 E12G24 30.28R TC 14
MORRIS* PTSUNNY 61 45 55 E8 30.23S TC 16
ROMEOVILLE* PTSUNNY 59 46 63 NE13 30.24F TC 15
LANSING* CLOUDY 58 41 53 NE13 30.25F TC 14
NORTHERLY ISL* N/A 56 44 64 N13 N/A TC 13
LMZ740>746-201700-
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 1022.8 1/ 3
WAUKEGAN HARBOR 51 52 350/ 10/ 14 1023.9 1/ 3
WILMETTE BUOY 51 40/ 12/ 16 1025.7R 1/ 3
CHICAGO BUOY 53 54 360/ 14/ 17 1023.3 2/ 3
HARRISON CRIB 52 10/ 14/ 15 N/A
NORTHERLY ISL 56 240/ 8/ 13 N/A
CALUMET HARBOR 55 350/ 9/ 14 1024.6
BURNS HARBOR 50 20/ 5/ 7 1024.7R
MICHIGAN CITY 51 360/ 12/ 13 1023.7R
ST. JOSEPH BUOY 51 360/ 14/ 17 1024.6R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 59 48 67 NE9 30.25S TC 15
GALESBURG* PTSUNNY 59 46 62 N13 30.27S TC 15
MACOMB* PTSUNNY 59 49 69 CALM 30.28F TC 15
JACKSONVILLE* MOSUNNY 60 49 68 NE9 30.23S TC 15
PITTSFIELD* MOSUNNY 59 48 66 NE7 30.25S TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-201700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 62 48 60 MISG 30.23F TC 16
BLOOMINGTON PTSUNNY 63 50 62 NE12 30.23F TC 17
DECATUR CLOUDY 60 52 74 NE14 30.20F TC 16
PEORIA MOSUNNY 60 46 59 E10 30.23F TC 16
LACON* SUNNY 60 45 56 N8 30.24F TC 16
LINCOLN* CLOUDY 61 51 67 NE9 30.22F TC 16
SPRINGFIELD PTSUNNY 61 49 64 N12G18 30.21F TC 16
TAYLORVILLE PTSUNNY 61 52 72 NE10G18 30.21S TC 16
ILZ033-039-045-046-055>057-062-063-201700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 61 50 67 N14 30.20S TC 16
DANVILLE* CLOUDY 63 52 67 NE10 30.21R TC 17
RANTOUL* CLOUDY 60 47 62 N13 30.21S TC 16
MATTOON PTSUNNY 61 54 77 NE13 30.17F TC 16
PARIS* CLOUDY 59 51 73 NE10 30.19S TC 15
ILZ079-100>102-201700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 57 50 77 N7 30.22S TC 14
CAHOKIA* CLOUDY 59 50 72 N13 30.20F TC 15
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 61 55 82 N9 30.17R TC 16
CAIRO* CLOUDY 64 62 95 N10 30.14S TC 18
EFFINGHAM* PTSUNNY 60 55 83 N10 30.19F TC 16
MARION CLOUDY 61 57 88 N7 30.17S TC 16
MT. VERNON CLOUDY 60 53 77 VRB7 30.18S TC 16
CENTRALIA* CLOUDY 59 53 78 CALM 30.19S TC 15
SALEM* N/A N/A N/A N/A MISG 30.18S
METROPOLIS* RAIN 63 63 100 N8 30.14S TC 17
ILZ067-068-072-073-078-083-087-091-201700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 61 58 90 N7 30.16S TC 16
FLORA* LGT RAIN 59 55 88 N12 30.18S TC 15
FAIRFIELD* CLOUDY 59 54 82 N8 30.16F TC 15
HARRISBURG* DRIZZLE 61 58 90 N6 30.17R TC 16
ROBINSON* LGT RAIN 61 57 88 N6 30.16S TC 16
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page