366
ASUS43 KLOT 181001
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 AM CDT SUN MAY 18 2025
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.
ILZ001-002-007-009-015-016-024-181100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTCLDY 44 39 82 W8 29.96R TC 7
STERLING* CLEAR 49 44 83 NW8 29.94S TC 9
ILZ003-004-008-010-011-017-018-181100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 49 41 74 NW10 29.94S TC 9
ILZ005-006-012>014-019>023-181100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 52 44 74 NW9 29.87S TC 11
CHICAGO-MIDWAY PTCLDY 54 44 69 NW8 29.89R TC 12
AURORA PTCLDY 46 40 79 NW5 29.90R TC 8
WAUKEGAN CLOUDY 53 44 71 NW8 29.89R TC 12
DUPAGE AIRPORT PTCLDY 52 44 74 NW8 29.89R TC 11
WHEELING CLEAR 51 45 79 N8 29.89F TC 11
MORRIS* PTCLDY 48 43 82 NW7 29.91R TC 9
LANSING* PTCLDY 50 45 82 W3 29.90R TC 10
NORTHERLY ISL* N/A 54 44 69 NW8 N/A TC 12
LMZ740>746-181100-
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)
HARRISON CRIB 58 320/ 17/ 19 N/A
NORTHERLY ISL 55 310/ 7/ 9 N/A
CALUMET HARBOR 55 290/ 3/ 6 1010.6
BURNS HARBOR 53 330/ 3/ 5 1012.2
MICHIGAN CITY 53 340/ 14/ 16 1010.6F
ST. JOSEPH BUOY 53 55 320/ 16/ 19 1012.3R 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-181100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 51 42 71 N7 29.97R TC 11
GALESBURG* MOCLDY 45 38 78 NW6 29.98S TC 7
MACOMB* CLOUDY 49 41 75 N9 29.99S TC 9
PITTSFIELD* CLOUDY 55 44 68 N6 29.97S TC 13
ILZ028>032-037-038-041>044-048-051>054-059>061-181100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON MOCLDY 51 42 71 NW8 29.95R TC 11
DECATUR MOCLDY 56 45 66 W5 29.95R TC 13
PEORIA MOCLDY 49 41 74 NW6 29.96R TC 9
LACON* MOCLDY 48 40 73 CALM 29.95R TC 9
SPRINGFIELD CLOUDY 51 46 83 NW5 29.97R TC 11
TAYLORVILLE MOCLDY 52 48 87 MISG 29.95R TC 11
ILZ033-039-045-046-055>057-062-063-181100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 48 44 86 SW6 29.94R TC 9
RANTOUL* PTCLDY 49 42 78 W5 29.94R TC 9
MATTOON PTCLDY 50 47 89 NW8 29.93R TC 10
ILZ079-100>102-181100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 56 51 83 CALM 29.96F TC 13
BELLEVILLE CLOUDY 60 52 75 CALM 29.93F TC 15
CAHOKIA* CLOUDY 58 54 86 SW3 29.96S TC 14
SPARTA* MOCLDY 60 56 88 CALM 29.97R TC 16
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-181100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOCLDY 59 53 80 W5 29.96R TC 15
CAIRO* MOCLDY 63 58 83 CALM 29.93F TC 17
EFFINGHAM* MOCLDY 52 49 90 SW3 29.96R TC 11
MARION MOCLDY 56 55 93 CALM 29.96S TC 14
MT. VERNON N/A 58 52 80 CALM 29.96R TC 14
CENTRALIA* MOCLDY 57 50 76 N6 29.95S TC 14
SALEM* MOCLDY 56 51 85 CALM 29.95F TC 13
METROPOLIS* MOCLDY 60 59 96 CALM 29.95S TC 16
ILZ067-068-072-073-078-083-087-091-181100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOCLDY 56 50 80 W3 29.93S TC 13
FLORA* MOCLDY 55 50 82 CALM 29.94F TC 13
FAIRFIELD* MOCLDY 57 50 76 N5 29.93F TC 14
HARRISBURG* MOCLDY 59 54 84 CALM 29.94S TC 15
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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