903
ASUS43 KLOT 041801
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 PM CDT FRI SEP 04 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.
ILZ001-002-007-009-015-016-024-041900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 93 73 52 W7 29.94F HX 102 TC 34
6HR MIN TEMP: 75; 6HR MAX TEMP: 95;
STERLING* MOSUNNY 90 74 59 VRB6 29.96F HX 99 TC 32
SAVANNA* MOSUNNY 93 76 58 E12 29.94F HX 105 TC 34
ILZ003-004-008-010-011-017-018-041900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 86 73 65 SE9G20 29.98F HX 93 TC 30
6HR MIN TEMP: 74; 6HR MAX TEMP: 87;
FREEPORT* MOSUNNY 85 76 74 SE10 29.99F HX 95 TC 30
ILZ005-006-012>014-019>023-041900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 84 69 60 SE14 29.97F HX 88 TC 29
6HR MIN TEMP: 76; 6HR MAX TEMP: 84;
CHICAGO-MIDWAY MOSUNNY 86 69 56 E14 29.99F HX 90 TC 30
6HR MIN TEMP: 79; 6HR MAX TEMP: 86;
AURORA MOSUNNY 86 71 60 E14 29.98F HX 91 TC 30
6HR MIN TEMP: 71; 6HR MAX TEMP: 87;
JOLIET* SUNNY 88 74 63 E14 29.99F HX 97 TC 31
WAUKEGAN MOSUNNY 76 72 87 S15 29.93F TC 24
6HR MIN TEMP: 70; 6HR MAX TEMP: 76; 6HR PCP: 0.03;
DUPAGE AIRPORT MOSUNNY 84 70 62 SE13G22 29.98F HX 88 TC 29
6HR MIN TEMP: 76; 6HR MAX TEMP: 84;
WHEELING MOSUNNY 80 69 69 S17 29.96F HX 83 TC 27
6HR MIN TEMP: 74; 6HR MAX TEMP: 81;
LANSING* SUNNY 86 72 63 E13 30.00F HX 92 TC 30
NORTHERLY ISL* N/A 80 70 71 E7 N/A HX 83 TC 27
LMZ740>746-041900-
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 72 70 150/ 17/ 23 1012.5F 3/ 5
WAUKEGAN HARBOR 72 70 180/ 14/ 19 1014.3F 3/ 4
WILMETTE BUOY 72 1018.3F 4/ 5
NORTHERLY ISL 78 80/ 10/ 17 N/A
CALUMET HARBOR 79 80/ 11/ 17 1016.1
MICH CITY BUOY 78 74 120/ 12/ 16 N/A 2/ 4
ST. JOSEPH BUOY 74 73 160/ 10/ 14 1015.5F 1/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-041900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 94 71 47 SW9 29.98F HX 101 TC 34
MACOMB* SUNNY 92 77 62 W3 30.00F HX 105 TC 33
ILZ028>032-037-038-041>044-048-051>054-059>061-041900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON SUNNY 94 74 52 SW9 30.00F HX 104 TC 34
DECATUR SUNNY 95 70 44 VRB3 29.99F HX 101 TC 35
PEORIA SUNNY 93 73 52 VRB5 29.97F HX 102 TC 34
6HR MIN TEMP: 76; 6HR MAX TEMP: 93;
LINCOLN* SUNNY 96 74 48 SW3 29.98F HX 106 TC 35
SPRINGFIELD SUNNY 96 72 45 N9 29.98F HX 104 TC 36
6HR MIN TEMP: 78; 6HR MAX TEMP: 96;
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-041900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN SUNNY 93 74 53 SW8 30.00F HX 103 TC 34
MATTOON SUNNY 96 71 44 W6 30.00F HX 103 TC 36
ILZ079-100>102-041900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 95 72 46 W6 30.00S HX 103 TC 35
CAHOKIA* MOSUNNY 98 70 40 SW7 29.98F HX 105 TC 37
SPARTA* MOSUNNY 94 69 42 CALM 30.01F HX 99 TC 35
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-041900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* SUNNY 97 62 31 W8 30.02S HX 98 TC 36
MT. VERNON MOSUNNY 99 70 38 VRB5 30.00F HX 106 TC 37
SALEM* MOSUNNY 99 70 38 MISG 30.00F HX 106 TC 37
ILZ067-068-072-073-078-083-087-091-041900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 100 68 35 MISG 29.99F HX 105 TC 38
FAIRFIELD* MOSUNNY 99 66 34 SW3 29.99F HX 103 TC 37
HARRISBURG* SUNNY 97 72 43 W9 30.00F HX 105 TC 36
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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