Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 221103
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
600 AM CDT WED JUL 22 2026
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-221200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 63 53 70 NE10 30.03R TC 17
STERLING* CLEAR 59 51 75 NE7 30.05R TC 15
SAVANNA* CLEAR 57 51 80 CALM 30.06R TC 14
$$
ILZ003-004-008-010-011-017-018-221200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 58 47 66 N8 30.07R TC 14
FREEPORT* CLEAR 55 51 88 CALM 30.08R TC 13
$$
ILZ005-006-012>014-019>023-221200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 60 50 69 N12 30.01R TC 16
CHICAGO-MIDWAY PTCLDY 64 53 67 N8 30.00R TC 18
AURORA MOCLDY N/A N/A N/A N7 30.02R
JOLIET* CLEAR 62 58 88 N3 30.02R TC 17
WAUKEGAN CLEAR 56 49 77 N7 30.02R TC 13
DUPAGE AIRPORT CLEAR 59 54 83 N7 30.02R TC 15
KANKAKEE* CLEAR 60 57 89 CALM 30.03R TC 16
WHEELING CLEAR 60 51 72 N9 30.03R TC 16
LANSING* PTCLDY 63 54 71 N3 30.00R TC 17
NORTHERLY ISL* N/A 65 51 60 NW10 N/A TC 18
$$
LMZ740>746-221200-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 63 71 1010.1R 3/ 7
WAUKEGAN HARBOR 61 69 1016.5R 3/ 8
WILMETTE BUOY 66 40/ 14/ 21 1018.3R 5/ 8
CHICAGO BUOY 73 N/A 4/ 8
HARRISON CRIB 67 360/ 17/ 18 N/A
NORTHERLY ISL 65 330/ 8/ 11 N/A
CALUMET HARBOR 66 340/ 9/ 12 1015.8
BURNS HARBOR 1016.3R
MICHIGAN CITY 62 50/ 2/ 4 1014.5R
MICH CITY BUOY 67 75 360/ 12/ 16 N/A 4/ 7
ST. JOSEPH BUOY 63 73 70/ 8/ 16 1016.1R 3/ 7
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-221200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 60 59 96 NW5 30.02R TC 16
GALESBURG* CLEAR 57 57 100 N6 30.04R TC 14
MACOMB* CLEAR 60 60 100 CALM 30.04R TC 15
JACKSONVILLE* CLEAR 59 59 100 NW3 30.01R TC 15
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-221200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 60 60 100 NE6 30.02R TC 16
DECATUR MOCLDY 62 60 93 NE8 30.00R TC 17
PEORIA MOCLDY 62 59 90 N3 30.01R TC 17
SPRINGFIELD PTCLDY 64 61 90 N5 30.00R TC 18
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-221200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 62 57 83 NE10 30.00R TC 17
DANVILLE* PTCLDY 60 57 87 NE6 30.00R TC 16
MATTOON CLEAR 63 61 93 N7 29.97R TC 17
$$
ILZ079-100>102-221200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 65 61 85 N6 29.99R TC 19
CAHOKIA* CLEAR 69 62 78 N7 29.98R TC 21
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-221200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 71 68 90 N8 29.94R TC 21
EFFINGHAM* CLEAR 65 64 96 N6 29.98R TC 18
MARION CLEAR 67 66 98 CALM 29.96R TC 19
MT. VERNON CLEAR 66 63 90 VRB5 29.95R TC 19
CENTRALIA* CLEAR 65 63 91 CALM 29.96R TC 18
SALEM* CLEAR 65 64 95 MISG 29.96R TC 19
$$
ILZ067-068-072-073-078-083-087-091-221200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 67 63 87 N9 29.94R TC 19
FLORA* CLEAR 64 64 100 N7 29.95R TC 18
FAIRFIELD* CLEAR 66 62 87 N5 29.94R TC 19
HARRISBURG* PTCLDY 67 65 91 CALM 29.94R TC 20
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$