377
ASUS43 KLOT 220106
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-220200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 66 46 48 E12 30.11S TC 19
STERLING* MOCLDY 62 43 49 E18 30.16S TC 17
SAVANNA* MOCLDY 61 42 49 E10G20 30.18R TC 16
ILZ003-004-008-010-011-017-018-220200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 57 43 59 NE7 30.22S TC 14
FREEPORT* MOCLDY 57 45 64 E12G18 30.21S TC 14
ROCHELLE* MOCLDY 58 40 49 E16 30.19S TC 15
DE KALB* MOCLDY 55 40 56 E12 30.21S TC 13
PERU* MOCLDY 63 45 51 NE16 30.15F TC 17
ILZ005-006-012>014-019>023-220200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 51 36 56 N14 30.21F TC 11
CHICAGO-MIDWAY CLOUDY 53 37 54 NE12 30.21F TC 12
AURORA MOCLDY 56 39 53 NE16 30.19S TC 13
JOLIET* CLOUDY 57 40 53 NE14G20 30.19S TC 14
WAUKEGAN PTCLDY 49 36 61 NE12 30.23S TC 9
DUPAGE AIRPORT MOCLDY 53 36 52 NE14G23 30.20F TC 12
KANKAKEE* CLOUDY 57 41 54 NE15 30.18R TC 14
WHEELING MOCLDY 50 37 61 NE9 30.23F TC 10
MORRIS* CLOUDY 57 39 51 E8 30.17S TC 14
ROMEOVILLE* CLOUDY 55 41 58 NE14G21 30.20S TC 13
LANSING* MOCLDY 51 41 69 N6 30.21S TC 10
NORTHERLY ISL* N/A 49 41 74 N14 N/A TC 9
LMZ740>746-220200-
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 51 1023.3F 3/ 4
WAUKEGAN HARBOR 49 50 340/ 17/ 21 1022.4F 3/ 4
WILMETTE BUOY 49 30/ 16/ 23 1023.9R 4/ 5
CHICAGO BUOY 51 55 350/ 17/ 21 1021.7F 4/ 5
HARRISON CRIB 49 350/ 18/ 19 N/A
NORTHERLY ISL 49 340/ 11/ 17 N/A
CALUMET HARBOR 50 330/ 10/ 14 1023.1
BURNS HARBOR 50 40/ 7/ 8 1023.4S
MICHIGAN CITY 51 30/ 10/ 11 1022.1S
ST. JOSEPH BUOY 53 360/ 8/ 10 1023.2R 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-220200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 66 51 58 NE5 30.06S TC 19
GALESBURG* MOCLDY 65 46 49 NE10 30.11F TC 19
MACOMB* CLOUDY 67 44 42 SE13 30.11R TC 20
JACKSONVILLE* CLOUDY 64 47 54 E12 30.09R TC 18
PITTSFIELD* CLOUDY 67 50 53 E10 30.08S TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-220200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 62 44 51 MISG 30.15S TC 17
BLOOMINGTON CLOUDY 65 41 41 E14 30.13F TC 18
DECATUR CLOUDY 64 47 53 NE14 30.10F TC 18
PEORIA MOCLDY 66 37 34 E9 30.10F TC 19
LACON* MOCLDY 63 43 48 E14G20 30.13R TC 17
LINCOLN* CLOUDY 66 46 48 E12 30.10F TC 19
SPRINGFIELD CLOUDY 64 47 53 E12 30.09F TC 18
TAYLORVILLE CLOUDY 64 48 55 NE7 30.09F TC 18
ILZ033-039-045-046-055>057-062-063-220200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 65 44 46 E15 30.12R TC 18
DANVILLE* CLOUDY 65 41 41 E10 30.14S TC 19
RANTOUL* CLOUDY 65 40 39 E14 30.13S TC 18
MATTOON CLOUDY 65 50 58 NE10 30.08F TC 18
PARIS* CLOUDY 64 47 54 NE8 30.12S TC 18
ILZ079-100>102-220200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 64 55 72 E9 30.08S TC 18
CAHOKIA* CLOUDY 65 57 75 E8 30.06S TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-220200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 65 60 84 NE7 30.04S TC 18
CAIRO* CLOUDY 67 62 86 NE8 30.03S TC 19
EFFINGHAM* CLOUDY 64 56 75 NE3 30.09F TC 18
MARION CLOUDY 65 59 81 NE6 30.06R TC 18
MT. VERNON CLOUDY 65 57 75 NE5 30.07R TC 18
CENTRALIA* CLOUDY 65 56 74 CALM 30.07R TC 18
SALEM* CLOUDY 65 58 77 MISG 30.07R TC 19
METROPOLIS* CLOUDY 65 62 90 NE5 30.04R TC 18
ILZ067-068-072-073-078-083-087-091-220200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 66 57 72 NE6 30.07S TC 19
FLORA* CLOUDY 66 57 72 NE5 30.07S TC 19
FAIRFIELD* CLOUDY 65 56 72 NE5 30.06S TC 19
HARRISBURG* CLOUDY 65 60 83 CALM 30.05S TC 19
ROBINSON* CLOUDY 66 57 72 NE10 30.08S TC 19
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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