271
ASUS43 KLOT 221301
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-221400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 57 43 59 E12 30.08S TC 14
STERLING* PTSUNNY 56 45 66 E17 30.11F TC 13
SAVANNA* PTSUNNY 56 43 60 E15G21 30.10F TC 14
ILZ003-004-008-010-011-017-018-221400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 54 42 64 E7 30.15F TC 12
FREEPORT* CLOUDY 55 45 70 E17 30.15F TC 13
DE KALB* CLOUDY 53 42 66 E15 30.15F TC 12
PERU* CLOUDY N/A N/A N/A E13 30.11S
ILZ005-006-012>014-019>023-221400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 52 40 63 NE15G21 30.15F TC 11
CHICAGO-MIDWAY CLOUDY 54 43 66 E14 30.15S TC 12
AURORA CLOUDY 54 43 66 E15 30.13R TC 12
JOLIET* CLOUDY 57 46 67 NE15 30.13F TC 14
WAUKEGAN PTSUNNY 50 38 63 E14 30.18F TC 10
DUPAGE AIRPORT CLOUDY 53 42 66 NE10 30.14S TC 12
KANKAKEE* CLOUDY 56 43 61 E14 30.12F TC 13
WHEELING CLOUDY 51 40 65 E9G21 30.18S TC 11
MORRIS* CLOUDY 57 43 58 E12 30.12R TC 14
ROMEOVILLE* CLOUDY 55 46 71 NE15G22 30.13F TC 13
LANSING* CLOUDY 56 41 57 NE9 30.15S TC 13
NORTHERLY ISL* N/A 52 43 71 NE14 N/A TC 11
LMZ740>746-221400-
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 1021.5R 3/ 4
WAUKEGAN HARBOR 48 50 10/ 12/ 16 1021.3S 3/ 4
WILMETTE BUOY 49 80/ 16/ 21 1022.1S 3/ 4
CHICAGO BUOY 52 54 60/ 16/ 23 1020.0F 3/ 4
HARRISON CRIB 51 60/ 16/ 18 N/A
NORTHERLY ISL 51 40/ 12/ 18 N/A
CALUMET HARBOR 52 30/ 10/ 15 1021.2
BURNS HARBOR 56 80/ 6/ 8 1021.3S
MICHIGAN CITY 54 90/ 11/ 14 1020.2F
ST. JOSEPH BUOY 53 100/ 14/ 21 1022.1F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-221400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 61 48 62 E12 30.00F TC 16
GALESBURG* CLOUDY 56 43 60 E13 30.07F TC 14
MACOMB* CLOUDY 58 45 60 E14 30.07S TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-221400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 57 44 62 E16 30.08S TC 14
DECATUR CLOUDY 58 47 66 NE16 30.05S TC 14
PEORIA CLOUDY 58 43 57 E15 30.06F TC 14
LINCOLN* CLOUDY 59 45 58 E13 30.05F TC 15
SPRINGFIELD MOSUNNY 58 47 66 E10 30.03F TC 14
TAYLORVILLE CLOUDY 57 48 72 NE7 30.04R TC 14
ILZ033-039-045-046-055>057-062-063-221400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 57 45 64 NE17 30.06R TC 14
DANVILLE* CLOUDY 56 45 66 NE9 30.09R TC 13
MATTOON CLOUDY 57 50 77 NE14 30.02S TC 14
PARIS* CLOUDY 56 47 72 NE8 30.05S TC 13
ILZ079-100>102-221400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 63 54 72 E10 30.00S TC 17
CAHOKIA* CLOUDY 63 55 75 NE6 29.98R TC 17
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-221400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLOUDY 63 59 87 E9 29.95S TC 17
CAIRO* CLOUDY 64 63 97 NE7 29.95F TC 18
MARION CLOUDY 63 59 88 NE7 29.96S TC 17
MT. VERNON CLOUDY 63 58 83 NE9 29.98F TC 17
CENTRALIA* CLOUDY 62 56 79 CALM 29.98F HAZE TC 17
SALEM* CLOUDY 63 56 79 MISG 29.98F TC 17
ILZ067-068-072-073-078-083-087-091-221400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 62 55 77 NE8 30.00F TC 17
FLORA* CLOUDY 61 54 77 NE8 30.00F TC 16
FAIRFIELD* CLOUDY 62 55 78 NE6 29.99S TC 17
HARRISBURG* CLOUDY 63 59 88 E6 29.97S TC 17
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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