682
ASUS43 KLOT 300710
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 AM CDT WED SEP 30 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.
ILZ001-002-007-009-015-016-024-300800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE LGT RAIN 66 57 72 CALM 29.87S TC 19
STERLING* CLOUDY 66 55 67 E3 29.90F TC 19
SAVANNA* LGT RAIN 64 59 83 SE6 29.88S TC 18
ILZ003-004-008-010-011-017-018-300800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD LGT RAIN 67 51 56 S8 29.91R TC 19
FREEPORT* CLOUDY 67 56 69 SW8 29.91S TC 19
ROCHELLE* DRIZZLE 65 51 60 CALM 29.91S TC 19
DE KALB* CLOUDY 62 53 73 S5 29.92S TC 17
PERU* CLOUDY 68 50 52 S5 29.90S TC 20
ILZ005-006-012>014-019>023-300800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 70 50 49 S9 29.91S TC 21
CHICAGO-MIDWAY CLOUDY 70 50 49 S12 29.92S TC 21
AURORA CLOUDY 65 51 60 S5 29.92R TC 18
JOLIET* CLOUDY 68 53 59 S3 29.93S TC 20
WAUKEGAN CLOUDY 67 51 56 SW8 29.90S TC 19
DUPAGE AIRPORT LGT RAIN 66 53 63 S8 29.92S TC 19
KANKAKEE* CLOUDY 64 52 64 S6 29.95S TC 18
WHEELING CLOUDY 70 50 49 S8 29.92S TC 21
ROMEOVILLE* CLOUDY 64 54 68 S8 29.93S TC 18
LANSING* MOCLDY 63 52 68 S7 29.94S TC 17
NORTHERLY ISL* N/A 69 49 48 S10 N/A TC 21
LMZ740>746-300800-
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 67 65 150/ 8/ 10 1012.5 1/ 3
WAUKEGAN HARBOR 69 65 200/ 8/ 12 1013.2 1/ 3
WILMETTE BUOY 69 150/ 10/ 12 1014.9F 1/ 3
CHICAGO BUOY 68 64 200/ 10/ 12 1012.0 1/ 3
HARRISON CRIB 70 190/ 15/ 15 N/A
NORTHERLY ISL 70 180/ 7/ 12 N/A
CALUMET HARBOR 68 170/ 9/ 12 1013.4F
MICHIGAN CITY 67 170/ 12/ 16 1012.5F
MICH CITY BUOY 65 63 180/ 10/ 12 N/A 1
ST. JOSEPH BUOY 65 62 180/ 10/ 12 1014.7F 1
ILZ025>027-034>036-040-047-049-050-058-095>099-300800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOCLDY 65 60 84 SE3 29.89F TC 18
GALESBURG* LGT RAIN 63 58 83 S6 29.91F TC 17
MACOMB* RAIN 64 60 88 SW5 29.93S TC 18
JACKSONVILLE* CLOUDY 71 51 49 S6 29.90F TC 21
PITTSFIELD* CLOUDY 72 52 49 S5 29.90F TC 22
ILZ028>032-037-038-041>044-048-051>054-059>061-300800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 65 52 62 S5 29.93S TC 19
BLOOMINGTON MOCLDY 66 51 58 S12 29.95R TC 19
DECATUR CLOUDY 65 52 62 S7 29.95S TC 18
PEORIA LGT RAIN 66 54 65 S5 29.91S TC 19
LACON* MOCLDY 68 49 50 S5 29.90S TC 20
SPRINGFIELD CLOUDY 70 50 49 S9 29.91F TC 21
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-300800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 65 51 60 S6 29.96S TC 18
RANTOUL* MOCLDY 60 54 79 S3 29.96F TC 16
MATTOON CLOUDY 66 52 60 SE9 29.96S TC 19
PARIS* CLOUDY 61 54 75 SE5 29.98F TC 16
ILZ079-100>102-300800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 68 52 55 CALM 29.93F TC 20
BELLEVILLE PTCLDY 65 60 85 CALM 29.92F TC 18
CAHOKIA* CLOUDY 68 53 58 SE5 29.92F TC 20
SPARTA* MOCLDY 67 51 56 SE6 29.96S TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-300800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 60 58 92 CALM 29.96F TC 16
EFFINGHAM* CLOUDY 62 53 72 CALM 29.98S TC 17
MARION MOCLDY 66 52 59 S2 29.96F TC 19
MT. VERNON MOCLDY 59 54 83 CALM 29.97S TC 15
CENTRALIA* MOCLDY 67 52 58 S7 29.96S TC 20
SALEM* MOCLDY 67 54 61 MISG 29.96S TC 20
METROPOLIS* MOCLDY 58 57 97 CALM 29.97F TC 14
ILZ067-068-072-073-078-083-087-091-300800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 60 55 83 CALM 29.98S TC 16
FLORA* MOCLDY 61 54 77 CALM 29.97F TC 16
FAIRFIELD* MOCLDY 62 53 72 CALM 29.97S TC 17
HARRISBURG* MOCLDY 58 55 89 CALM 29.97F TC 15
ROBINSON* MOCLDY 55 55 100 CALM 29.97F TC 13
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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