744
ASUS43 KLOT 200706
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 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.
ILZ001-002-007-009-015-016-024-200800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 70 67 90 NE6 29.95S TC 21
STERLING* PTCLDY 66 65 96 E6 29.98F TC 19
SAVANNA* PTCLDY 66 62 89 CALM 29.99S TC 19
ILZ003-004-008-010-011-017-018-200800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 64 58 80 N3 30.00F TC 18
FREEPORT* PTCLDY 62 61 95 E3 30.01F TC 17
ROCHELLE* CLOUDY 64 61 93 NE3 29.99S TC 18
DE KALB* PTCLDY 62 60 94 NE5 29.99F TC 17
PERU* MOCLDY 68 64 88 NE5 29.97S TC 20
ILZ005-006-012>014-019>023-200800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 68 56 65 N8 29.95F TC 20
CHICAGO-MIDWAY CLOUDY 71 55 56 NE3 29.95F TC 22
AURORA MOCLDY 65 60 84 NE6 29.97S TC 18
JOLIET* MOCLDY 70 60 70 NE6 29.95F TC 21
WAUKEGAN MOCLDY 60 59 96 N5 29.97F TC 16
DUPAGE AIRPORT MOCLDY 63 59 87 N7 29.96F TC 17
KANKAKEE* MOCLDY 66 64 93 NE5 29.95S TC 19
WHEELING MOCLDY 64 58 80 N6 29.98F TC 18
ROMEOVILLE* MOCLDY 70 59 68 NE7 29.96F TC 21
LANSING* MOCLDY 70 53 54 NE6 29.95F TC 21
NORTHERLY ISL* N/A 71 55 56 NE14 N/A TC 22
LMZ740>746-200800-
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/ 6/ 8 1014.8F 2/ 4
WAUKEGAN HARBOR 73 74 350/ 8/ 12 1015.5F 2/ 4
WILMETTE BUOY 73 70/ 12/ 17 1017.6F 2/ 4
CHICAGO BUOY 74 73 1013.2F 3/ 4
NORTHERLY ISL 71 20/ 9/ 13 N/A
CALUMET HARBOR 72 20/ 8/ 13 1014.7
MICH CITY BUOY 72 74 30/ 14/ 17 N/A 3/ 4
ST. JOSEPH BUOY 72 74 40/ 12/ 16 1015.2F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-200800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTCLDY 66 66 100 N3 29.94F TC 19
GALESBURG* PTCLDY 67 67 100 CALM 29.97F FOG TC 19
MACOMB* PTCLDY 66 66 100 CALM 29.98R TC 19
JACKSONVILLE* CLEAR 67 67 100 CALM 29.94S TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-200800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 67 67 98 CALM 29.96R TC 20
BLOOMINGTON MOCLDY 70 70 100 NE8 29.96R TC 21
DECATUR CLOUDY 69 67 93 SE5 29.94S TC 21
PEORIA CLOUDY 69 68 96 NE6 29.94F TC 21
LACON* MOCLDY 67 64 93 CALM 29.95S TC 19
LINCOLN* LGT RAIN 68 68 100 CALM 29.94F TC 20
SPRINGFIELD LGT RAIN 68 67 96 SW3 29.94S TC 20
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-200800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 67 67 100 CALM 29.93S TC 19
RANTOUL* CLOUDY 68 68 99 N3 29.95R TC 20
MATTOON CLOUDY 69 66 90 E3 29.92F TC 21
PARIS* PTCLDY 66 65 97 SE3 29.93S TC 19
ILZ079-100>102-200800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON HVY RAIN N/A N/A N/A N3 29.93S
CAHOKIA* PTCLDY 73 72 96 CALM 29.91S TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-200800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* CLOUDY 73 73 100 N5 29.94F TC 23
MARION MOCLDY 73 72 98 S5 29.92R TC 23
MT. VERNON MOCLDY 73 72 96 SE5 29.92S TC 23
CENTRALIA* MOCLDY 73 72 98 CALM 29.92S TC 23
SALEM* MOCLDY 74 73 99 MISG 29.92S TC 23
METROPOLIS* CLEAR 71 70 97 CALM 29.93F TC 22
ILZ067-068-072-073-078-083-087-091-200800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 73 71 93 NE3 29.91S TC 23
FLORA* HVY RAIN 70 70 100 CALM 29.92S FOG TC 21
FAIRFIELD* CLOUDY 73 72 97 CALM 29.92R TC 23
HARRISBURG* CLEAR 72 72 98 S5 29.94R TC 22
ROBINSON* LGT RAIN 72 70 94 N9 29.93S FOG TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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