522
ASUS43 KLOT 170301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM CDT SAT MAY 16 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.
ILZ001-002-007-009-015-016-024-170400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 73 62 68 S10 29.85R TC 23
STERLING* MOCLDY 73 63 70 VRB3 29.87R TC 23
SAVANNA* PTCLDY 76 65 69 S7 29.85R TC 24
ILZ003-004-008-010-011-017-018-170400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 75 65 70 S7 29.88R TC 24
FREEPORT* MOCLDY 73 64 74 SE7 29.89R TC 23
DE KALB* CLOUDY 71 64 78 S10 29.90R TC 22
PERU* CLOUDY 72 61 68 S12 29.89R TC 22
ILZ005-006-012>014-019>023-170400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 74 63 68 S8 29.88R TC 23
CHICAGO-MIDWAY CLOUDY 74 58 57 S15G24 29.90R TC 23
AURORA MOCLDY 72 62 71 SW9 29.89R TC 22
JOLIET* MOCLDY 73 62 68 S10 29.90R TC 23
WAUKEGAN MOCLDY 67 58 72 SW5 29.88R TC 19
DUPAGE AIRPORT MOCLDY 72 64 76 S7 29.89R TC 22
KANKAKEE* MOCLDY 68 60 76 S3 29.93S TC 20
WHEELING MOCLDY 75 64 68 S12 29.90R TC 24
MORRIS* MOCLDY 72 61 68 S7 29.89R TC 22
LANSING* PTCLDY 69 59 70 S8 29.92R TC 20
NORTHERLY ISL* N/A 74 56 53 S14 N/A TC 23
LMZ740>746-170400-
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 1004.8F 0
WAUKEGAN HARBOR 56 53 150/ 2/ 4 1012.3R 0
HARRISON CRIB 75 190/ 20/ 21 N/A
NORTHERLY ISL 75 200/ 7/ 12 N/A
CALUMET HARBOR 74 170/ 9/ 14 1012.4
BURNS HARBOR 72 190/ 7/ 9 1013.2R
MICHIGAN CITY 74 170/ 10/ 11 1011.1R
ST. JOSEPH BUOY 60 170/ 2/ 4 1013.1R 0
ILZ025>027-034>036-040-047-049-050-058-095>099-170400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 70 67 90 E10 29.87R TC 21
GALESBURG* MOCLDY 69 60 72 CALM 29.90R TC 21
MACOMB* PTCLDY 68 65 91 CALM 29.89F TC 20
JACKSONVILLE* CLOUDY 68 64 85 SE12 29.88R TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-170400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 66 64 93 S7 29.92R TC 19
DECATUR N/A N/A N/A N/A MISG 29.91R
PEORIA CLOUDY 70 62 76 S10 29.89R TC 21
SPRINGFIELD CLOUDY 67 63 87 SE7 29.90R TC 19
TAYLORVILLE MOCLDY 66 64 94 SE9 29.90S TC 19
ILZ033-039-045-046-055>057-062-063-170400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 66 64 93 SE12 29.93R TC 19
DANVILLE* MOCLDY 69 65 88 S8 29.95R TC 21
MATTOON PTCLDY 66 63 90 S8 29.93R TC 19
PARIS* MOCLDY 66 64 94 SE5 29.95R TC 19
ILZ079-100>102-170400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 64 64 100 E8 29.88S TC 18
BELLEVILLE MOCLDY 72 69 89 SE3 29.85S TC 22
CAHOKIA* MOCLDY 73 66 78 SE7 29.85S TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-170400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOCLDY 76 65 68 S9 29.92R TC 24
CAIRO* PTCLDY 78 66 66 S6 29.96R HX 80 TC 26
EFFINGHAM* PTCLDY 63 63 100 E3 29.95R TC 17
MARION MOCLDY 75 63 66 S9 29.93S TC 24
MT. VERNON MOCLDY 73 66 78 S7 29.91F TC 23
CENTRALIA* MOCLDY 66 65 96 CALM 29.91S TC 19
SALEM* MOCLDY 67 66 96 E5 29.92R TC 20
ILZ067-068-072-073-078-083-087-091-170400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 66 65 96 E7 29.96R TC 19
FLORA* PTCLDY 66 N/A N/A E3 29.94S TC 19
FAIRFIELD* MOCLDY 67 64 91 NE5 29.92F TC 20
HARRISBURG* MOCLDY 72 67 84 S3 29.94S TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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