745
ASUS43 KLOT 221401
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 AM CDT FRI MAY 22 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.
ILZ001-002-007-009-015-016-024-221500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 58 43 57 E15 30.07F TC 14
STERLING* PTSUNNY 58 44 60 E21G28 30.10F TC 14
SAVANNA* CLOUDY 57 43 58 E14G21 30.11R TC 14
ILZ003-004-008-010-011-017-018-221500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 54 41 61 NE7 30.15S TC 12
FREEPORT* CLOUDY 56 45 68 E17G23 30.14S TC 13
DE KALB* CLOUDY 53 42 66 E14 30.14F TC 12
PERU* CLOUDY 59 45 58 E14 30.10F TC 15
ILZ005-006-012>014-019>023-221500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 53 40 61 E14 30.14F TC 12
CHICAGO-MIDWAY CLOUDY 54 42 64 E16 30.14F TC 12
AURORA CLOUDY 55 43 63 E14 30.12F TC 13
JOLIET* CLOUDY 58 47 64 NE13 30.12F TC 15
WAUKEGAN PTSUNNY 51 38 60 E15G22 30.17F TC 11
DUPAGE AIRPORT CLOUDY 53 42 66 E13 30.13F TC 12
KANKAKEE* CLOUDY 58 43 58 E12 30.12S TC 15
WHEELING CLOUDY 52 40 63 E9G22 30.16F TC 11
MORRIS* CLOUDY 57 45 62 E9 30.11S TC 14
ROMEOVILLE* CLOUDY 55 46 71 NE13G21 30.13S TC 13
LANSING* CLOUDY 57 42 57 E9 30.13F TC 14
NORTHERLY ISL* N/A 52 43 71 NE13 N/A TC 11
LMZ740>746-221500-
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 1023.8R 3/ 4
WAUKEGAN HARBOR 48 50 20/ 12/ 16 1020.4F 2/ 4
WILMETTE BUOY 50 110/ 16/ 19 1021.4F 3/ 4
CHICAGO BUOY 52 54 60/ 14/ 17 1019.7F 3/ 5
HARRISON CRIB 51 50/ 14/ 16 N/A
NORTHERLY ISL 52 40/ 11/ 16 N/A
CALUMET HARBOR 53 40/ 8/ 12 1020.7F
BURNS HARBOR 57 70/ 5/ 7 1021.0F
MICHIGAN CITY 56 100/ 13/ 16 1019.6F
ST. JOSEPH BUOY 55 100/ 12/ 17 1021.8F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-221500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 62 49 62 E10 29.99F TC 17
GALESBURG* CLOUDY 58 44 60 E13 30.07R TC 14
MACOMB* CLOUDY 60 45 59 E14 30.07S TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-221500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 59 45 59 E17 30.08S TC 15
DECATUR CLOUDY 60 48 64 E14G22 30.04F TC 16
PEORIA CLOUDY 60 45 57 E13 30.06S TC 16
LINCOLN* CLOUDY 61 46 59 E12 30.05S TC 16
SPRINGFIELD PTSUNNY 60 47 61 E13 30.03S TC 16
TAYLORVILLE CLOUDY 57 48 72 E6 30.03S TC 14
ILZ033-039-045-046-055>057-062-063-221500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 61 47 59 E16 30.05S TC 16
DANVILLE* CLOUDY 57 46 66 E10 30.08F TC 14
MATTOON CLOUDY 59 50 72 NE14 30.02S TC 15
PARIS* CLOUDY 58 48 69 E12G17 30.04F TC 15
ILZ079-100>102-221500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 63 54 72 E9 29.98F TC 17
CAHOKIA* CLOUDY 63 56 78 NE8 29.96F TC 17
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-221500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 63 59 87 E8 29.96R TC 17
CAIRO* CLOUDY 64 63 94 E5 29.94F TC 18
EFFINGHAM* CLOUDY 60 55 83 NE3 30.02F TC 16
MARION CLOUDY 63 59 88 E7 29.96S TC 17
MT. VERNON CLOUDY 64 58 80 E10 29.97F TC 18
CENTRALIA* CLOUDY 64 57 78 CALM 29.97F TC 18
SALEM* CLOUDY 64 57 77 MISG 29.98S TC 18
ILZ067-068-072-073-078-083-087-091-221500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 64 56 75 NE7 29.99F TC 18
FLORA* CLOUDY 63 55 77 NE10 29.99F TC 17
FAIRFIELD* CLOUDY 63 56 80 NE6 29.98S TC 17
HARRISBURG* CLOUDY 64 59 86 E6 29.97S TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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