012
ASUS43 KLOT 120703
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
200 AM CDT TUE MAY 12 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.
ILZ001-002-007-009-015-016-024-120800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 49 29 46 SE9 30.11F TC 9
STERLING* CLEAR 46 26 45 SE8 30.16F TC 8
SAVANNA* MOCLDY 46 26 44 SE8 30.13F TC 8
ILZ003-004-008-010-011-017-018-120800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 41 28 60 SE6 30.17F TC 5
FREEPORT* CLOUDY 43 30 60 SE10 30.16F TC 6
DE KALB* CLEAR 38 30 73 SE8 30.18F WCI 32 TC 3
ILZ005-006-012>014-019>023-120800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 42 31 64 E5 30.16F TC 6
CHICAGO-MIDWAY CLEAR 44 33 65 E3 30.17F TC 7
AURORA CLEAR 37 31 78 E3 30.17F TC 3
JOLIET* PTCLDY 42 35 74 E3 30.18F TC 6
WAUKEGAN CLEAR 32 31 96 CALM 30.17F TC 0
DUPAGE AIRPORT CLEAR 40 31 70 E3 30.16F TC 4
KANKAKEE* PTCLDY 41 32 72 E3 30.19F TC 5
WHEELING CLEAR 38 32 79 CALM 30.18F TC 3
MORRIS* CLEAR 43 32 65 E3 30.18S TC 6
LANSING* CLEAR 40 34 80 CALM 30.19S TC 4
NORTHERLY ISL* N/A 46 31 56 E10 N/A TC 8
LMZ740>746-120800-
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 48 1019.4F 1/ 4
WAUKEGAN HARBOR 44 48 110/ 4/ 4 1020.7F 1/ 4
HARRISON CRIB 47 90/ 10/ 11 N/A
NORTHERLY ISL 46 70/ 8/ 9 N/A
CALUMET HARBOR 47 60/ 7/ 10 1021.8
BURNS HARBOR 46 110/ 3/ 4 1022.7F
MICHIGAN CITY 43 110/ 5/ 5 1021.9F
ST. JOSEPH BUOY 47 350/ 4/ 4 1022.8F 2/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-120800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 59 39 47 SE8 30.11F TC 15
MACOMB* CLEAR 52 35 51 SE10 30.15F TC 11
ILZ028>032-037-038-041>044-048-051>054-059>061-120800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOCLDY 43 31 62 E8 30.17F TC 6
DECATUR CLEAR 45 36 70 E7 30.17F TC 7
PEORIA PTCLDY 50 28 42 SE7 30.16F TC 10
LINCOLN* PTCLDY 51 33 50 E5 30.17S TC 11
SPRINGFIELD PTCLDY 53 31 42 E9 30.16F TC 12
TAYLORVILLE CLEAR 54 36 50 E10 30.15F TC 12
ILZ033-039-045-046-055>057-062-063-120800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN N/A N/A N/A N/A MISG 30.17F
DANVILLE* PTCLDY 47 31 54 E3 30.19F TC 8
MATTOON CLEAR 49 34 56 E7 30.16F TC 9
PARIS* CLEAR 46 34 62 E3 30.19S TC 8
ILZ079-100>102-120800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTCLDY 54 50 84 NE3 30.14F TC 12
BELLEVILLE CLEAR 55 53 91 CALM 30.12F TC 13
CAHOKIA* PTCLDY 54 50 86 SW6 30.13F TC 12
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-120800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 53 49 86 SW3 30.15F TC 12
CAIRO* CLEAR 54 50 88 CALM 30.16F TC 12
EFFINGHAM* CLEAR 51 39 63 E5 30.19S TC 11
MARION CLEAR 53 46 79 CALM 30.16F TC 12
MT. VERNON CLEAR 52 49 89 CALM 30.16S TC 11
CENTRALIA* PTCLDY 52 49 89 CALM 30.16S TC 11
SALEM* PTCLDY 58 44 58 E6 30.16F TC 15
ILZ067-068-072-073-078-083-087-091-120800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 51 40 65 NE3 30.17F TC 11
FLORA* CLEAR 52 45 76 CALM 30.18S TC 11
FAIRFIELD* CLEAR 56 42 60 NE3 30.17S TC 13
HARRISBURG* CLEAR 51 49 92 CALM 30.16S TC 11
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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