529
ASUS43 KLOT 300501
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 AM CDT THU APR 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.
ILZ001-002-007-009-015-016-024-300600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 41 33 73 CALM 30.05F TC 5
STERLING* CLEAR 41 37 86 CALM 30.06S TC 5
SAVANNA* CLEAR 41 33 74 SE3 30.05F TC 5
ILZ003-004-008-010-011-017-018-300600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 39 37 92 CALM 30.05S TC 4
FREEPORT* CLEAR 42 38 84 S5 30.05F TC 6
ROCHELLE* CLEAR 37 33 88 CALM 30.05S TC 3
DE KALB* CLEAR 40 37 89 W3 30.04S TC 5
ILZ005-006-012>014-019>023-300600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 41 39 93 CALM 30.02S TC 5
CHICAGO-MIDWAY PTCLDY 41 37 86 CALM 30.03S TC 5
AURORA CLEAR 38 36 92 NW5 30.03S WCI 34 TC 3
JOLIET* CLEAR 40 39 96 CALM 30.04F TC 4
WAUKEGAN CLEAR 35 35 100 SW3 30.01F TC 2
DUPAGE AIRPORT CLEAR 40 38 93 CALM 30.02S TC 4
KANKAKEE* CLEAR 41 39 94 CALM 30.05F TC 5
WHEELING PTCLDY 39 37 92 CALM 30.03F TC 4
LANSING* CLEAR 37 35 92 CALM 30.04S TC 3
NORTHERLY ISL* N/A 44 36 73 W2 N/A TC 7
LMZ740>746-300600-
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 1011.7F 1/ 5
WAUKEGAN HARBOR 44 48 220/ 4/ 6 1016.6F 1/ 5
NORTHERLY ISL 43 CALM / 8 N/A
CALUMET HARBOR 43 310/ 2/ 2 1016.5F
BURNS HARBOR 44 350/ 5/ 6 1017.3S
ST. JOSEPH BUOY 42 330/ 12/ 14 1016.8F 3/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-300600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 46 37 71 NW5 30.08S TC 8
GALESBURG* CLEAR 40 30 68 CALM 30.08S TC 4
MACOMB* CLEAR 42 36 79 CALM 30.10R TC 5
JACKSONVILLE* CLEAR 42 38 83 W6 30.08S TC 6
ILZ028>032-037-038-041>044-048-051>054-059>061-300600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 42 37 82 MISG 30.05S TC 6
BLOOMINGTON CLEAR 43 36 76 NW3 30.06S TC 6
DECATUR CLEAR 45 36 70 N6 30.06R TC 7
PEORIA CLEAR 42 36 79 CALM 30.06S TC 6
LACON* CLEAR 40 35 81 CALM 30.05S TC 5
LINCOLN* CLEAR 46 37 72 CALM 30.06S TC 8
SPRINGFIELD CLEAR 44 38 79 NW5 30.07R TC 7
TAYLORVILLE CLEAR 46 37 71 N3 30.07R TC 8
ILZ033-039-045-046-055>057-062-063-300600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 44 39 82 NE5 30.04S TC 7
DANVILLE* CLEAR 42 40 93 N5 30.05S TC 6
RANTOUL* CLEAR 43 40 88 N3 30.05S TC 6
MATTOON CLEAR 45 38 76 NW5 30.04S TC 7
PARIS* CLEAR 46 37 73 N6 30.05R TC 8
ILZ079-100>102-300600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 46 41 82 CALM 30.08S TC 8
BELLEVILLE PTCLDY 50 41 71 N5 30.05F TC 10
CAHOKIA* PTCLDY 52 37 56 N7 30.07F TC 11
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-300600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 53 41 63 N7 30.05S TC 12
CAIRO* MOCLDY 57 46 66 N7 30.05R TC 14
EFFINGHAM* CLEAR 48 41 75 NW3 30.08R TC 9
MARION CLEAR 51 42 71 N6 30.06S TC 11
MT. VERNON PTCLDY 48 43 82 CALM 30.06F TC 9
CENTRALIA* PTCLDY 50 40 69 CALM 30.06F TC 10
SALEM* PTCLDY 50 43 76 CALM 30.06S TC 10
METROPOLIS* MOCLDY 56 43 63 N6 30.04S TC 13
ILZ067-068-072-073-078-083-087-091-300600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTCLDY 49 41 74 N8 30.05R TC 9
FLORA* PTCLDY 48 41 76 NW7 30.05F TC 9
FAIRFIELD* PTCLDY 52 38 59 CALM 30.05S TC 11
HARRISBURG* PTCLDY 51 43 73 N6 30.05S TC 10
ROBINSON* CLEAR 50 39 66 NW6 30.05R TC 10
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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