141
ASUS43 KLOT 200908
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 AM CDT THU AUG 20 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.
ILZ001-002-007-009-015-016-024-201000-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 67 65 93 NE7 29.97R TC 19
STERLING* MOCLDY 64 62 93 E8 30.00R TC 18
SAVANNA* PTCLDY 63 60 91 NE3 30.01R TC 17
ILZ003-004-008-010-011-017-018-201000-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 61 57 87 N5 30.03R TC 16
FREEPORT* PTCLDY 59 57 95 CALM 30.03R TC 15
ROCHELLE* MOCLDY 62 59 91 NE3 30.01R TC 16
DE KALB* MOCLDY 61 59 93 NE5 30.01R TC 16
ILZ005-006-012>014-019>023-201000-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 65 57 75 N3 29.98R TC 18
CHICAGO-MIDWAY PTCLDY 69 56 62 NE5 29.97R TC 21
AURORA MOCLDY 62 59 90 N3 29.99R TC 17
JOLIET* PTCLDY 68 58 71 N5 29.97S TC 20
WAUKEGAN PTCLDY 58 56 93 CALM 29.99R TC 14
DUPAGE AIRPORT PTCLDY 62 58 86 N3 29.99R TC 17
KANKAKEE* CLOUDY 65 64 93 NE5 29.96F TC 19
WHEELING MOCLDY 63 59 87 N5 30.00R TC 17
ROMEOVILLE* MOCLDY 68 59 73 N9 29.98S TC 20
LANSING* MOCLDY 69 56 63 NE6 29.97S TC 20
NORTHERLY ISL* N/A 71 55 56 N8 N/A TC 22
LMZ740>746-201000-
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 73 74 10/ 10/ 14 1015.3 1/ 4
WAUKEGAN HARBOR 69 74 300/ 6/ 10 1016.1 2/ 3
WILMETTE BUOY 73 60/ 12/ 16 1017.8R 2/ 3
CHICAGO BUOY 74 73 1013.8 3/ 4
NORTHERLY ISL 71 40/ 10/ 12 N/A
CALUMET HARBOR 72 10/ 8/ 13 1015.1
MICH CITY BUOY 72 74 30/ 12/ 16 N/A 3/ 4
ST. JOSEPH BUOY 69 74 80/ 6/ 8 1015.6R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201000-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY FOG 65 65 100 NE5 29.96R VSB 1/4 TC 18
GALESBURG* CLEAR 64 64 100 NE3 29.99R TC 18
MACOMB* CLEAR 63 63 100 CALM 30.00R TC 17
JACKSONVILLE* PTCLDY 65 65 100 N5 29.95S TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-201000-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 65 65 100 NE6 29.96F TC 19
BLOOMINGTON PTCLDY 67 67 100 NE6 29.98R TC 19
DECATUR MOCLDY 68 67 96 NE5 29.95S TC 20
PEORIA MOCLDY 69 66 90 E6 29.97R TC 21
LACON* MOCLDY 66 64 91 CALM 29.97R TC 19
LINCOLN* MOCLDY 68 68 100 CALM 29.96R FOG TC 20
SPRINGFIELD LGT RAIN 66 66 100 CALM 29.95R TC 19
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-201000-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 68 68 100 CALM 29.96R TC 20
RANTOUL* CLOUDY 68 68 99 N5 29.96R TC 20
MATTOON LGT RAIN 69 67 93 N3 29.94R TC 21
PARIS* MOCLDY 65 64 97 CALM 29.94R TC 19
ILZ079-100>102-201000-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 73 72 96 CALM 29.93R TC 23
CAHOKIA* CLEAR 71 71 100 CALM 29.91R TC 22
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201000-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLOUDY 69 69 100 NE3 29.93F TC 21
MARION MOCLDY 70 70 98 S3 29.91S TC 21
MT. VERNON MOCLDY 73 72 96 CALM 29.91F TC 23
CENTRALIA* MOCLDY 72 71 98 CALM 29.92S TC 22
SALEM* CLOUDY 73 73 100 MISG 29.92R FOG TC 23
METROPOLIS* HVY RAIN 72 71 97 S13 29.90S TC 22
ILZ067-068-072-073-078-083-087-091-201000-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 70 68 93 SE5 29.92R TC 21
FLORA* MOCLDY 70 N/A N/A CALM 29.93R TC 21
FAIRFIELD* MOCLDY 72 70 93 NE3 29.91F TC 22
HARRISBURG* MOCLDY 72 72 100 CALM 29.91F TC 22
ROBINSON* CLOUDY 68 68 100 S5 29.92R TC 20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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