319
ASUS43 KLOT 211910
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-212000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 66 48 52 E14 30.20F TC 19
STERLING* MOSUNNY 69 47 45 E16G23 30.23F TC 21
SAVANNA* CLOUDY 68 44 42 E9 30.23F TC 20
ILZ003-004-008-010-011-017-018-212000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 63 43 48 VRB7G21 30.27F TC 17
FREEPORT* CLOUDY 63 42 47 NE16G22 30.28F TC 17
ROCHELLE* MOSUNNY 65 43 44 E13G21 30.25F TC 19
PERU* CLOUDY 68 46 45 E15G21 30.21F TC 20
ILZ005-006-012>014-019>023-212000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 56 43 61 N14 30.28F TC 13
CHICAGO-MIDWAY CLOUDY 59 44 57 NE14 30.27F TC 15
AURORA PTSUNNY 62 47 57 E14G25 30.25F TC 17
WAUKEGAN PTSUNNY 51 39 63 NE13G20 30.31F TC 11
DUPAGE AIRPORT PTSUNNY 58 45 62 NE16 30.26F TC 14
WHEELING PTSUNNY 51 41 68 E9G20 30.31F TC 11
MORRIS* PTSUNNY 66 46 48 E15 30.22F TC 19
ROMEOVILLE* SUNNY 63 48 59 NE14G21 30.25F TC 17
LANSING* PTSUNNY 59 46 62 N12G18 30.26F TC 15
NORTHERLY ISL* N/A 55 46 71 N13 N/A TC 13
LMZ740>746-212000-
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 1024.3 2/ 4
WAUKEGAN HARBOR 46 48 350/ 14/ 17 1024.8 2/ 4
WILMETTE BUOY 49 80/ 16/ 21 1026.3F 3/ 5
CHICAGO BUOY 52 54 40/ 17/ 21 1023.8 3/ 4
HARRISON CRIB 51 30/ 17/ 19 N/A
NORTHERLY ISL 53 10/ 10/ 15 N/A
CALUMET HARBOR 54 330/ 9/ 14 1025.7
BURNS HARBOR 52 20/ 10/ 12 1025.1F
MICHIGAN CITY 53 10/ 22/ 24 1024.3S
ST. JOSEPH BUOY 53 360/ 14/ 17 1025.9S 3/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-212000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 69 50 50 E10 30.15F TC 21
PITTSFIELD* SUNNY 72 51 48 E13 30.15F TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-212000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOSUNNY 71 43 36 E22G31 30.18F TC 22
DECATUR CLOUDY 67 45 45 E17G24 30.16F TC 19
PEORIA PTSUNNY 69 46 43 E15G22 30.18F TC 21
LACON* CLOUDY 70 45 39 E10G17 30.19F TC 21
LINCOLN* MOSUNNY 71 45 38 E15G21 30.16F TC 22
SPRINGFIELD MOSUNNY 71 45 39 NE16 30.14F TC 22
TAYLORVILLE CLOUDY 70 52 52 E12G22 30.14F TC 21
ILZ033-039-045-046-055>057-062-063-212000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 67 44 43 E17G24 30.17S TC 19
RANTOUL* CLOUDY 67 40 36 E15G23 30.18F TC 20
MATTOON CLOUDY 64 51 62 E13 30.14F TC 18
ILZ079-100>102-212000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 68 55 64 NE8 30.13S TC 20
CAHOKIA* CLOUDY 68 56 65 N9 30.11F TC 20
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-212000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 66 58 75 N7 30.10F TC 19
EFFINGHAM* CLOUDY 65 55 67 E5 30.16S TC 19
MARION CLOUDY 64 57 77 N9 30.11S TC 18
MT. VERNON N/A 64 57 78 NE7 30.12F TC 18
SALEM* CLOUDY 65 58 77 MISG 30.13F TC 18
METROPOLIS* CLOUDY 67 63 86 N6 30.08F TC 19
ILZ067-068-072-073-078-083-087-091-212000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 66 53 63 E10 30.13F TC 19
FAIRFIELD* CLOUDY 64 56 76 NE9 30.12F TC 18
ROBINSON* CLOUDY 66 55 68 E9 30.14S TC 19
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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