585
ASUS43 KLOT 180203
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 PM CDT SUN MAY 17 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.
ILZ001-002-007-009-015-016-024-180300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 80 64 58 S17G25 29.69F HX 82 TC 27
STERLING* CLEAR 79 64 60 VRB7 29.76S HX 81 TC 26
SAVANNA* CLEAR 79 64 58 S13 29.72S HX 81 TC 26
ILZ003-004-008-010-011-017-018-180300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 78 64 61 S10 29.78R HX 80 TC 26
FREEPORT* CLEAR 77 66 69 S13 29.76S TC 25
DE KALB* PTCLDY 76 64 65 S17 29.82R TC 25
PERU* CLOUDY 81 63 54 S16G23 29.79S HX 82 TC 27
ILZ005-006-012>014-019>023-180300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 80 61 52 S16G25 29.80F HX 81 TC 27
CHICAGO-MIDWAY MOCLDY 80 61 52 S18G33 29.82F HX 81 TC 27
AURORA PTCLDY 79 63 57 S17 29.81S HX 80 TC 26
JOLIET* CLOUDY 81 63 55 S10G20 29.84S HX 82 TC 27
WAUKEGAN PTCLDY 54 50 86 NE5 29.81R TC 12
DUPAGE AIRPORT PTCLDY 78 63 59 S18G31 29.81S HX 80 TC 26
KANKAKEE* CLOUDY 78 60 54 S9G16 29.89S TC 26
WHEELING MOCLDY 79 62 56 S17G28 29.82S HX 80 TC 26
MORRIS* CLOUDY 81 63 54 S17G23 29.82S HX 82 TC 27
LANSING* MOCLDY 77 61 56 S16G22 29.87S TC 25
NORTHERLY ISL* N/A 79 58 48 S20 N/A HX 80 TC 26
LMZ740>746-180300-
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 1006.9F 1/ 5
WAUKEGAN HARBOR 51 52 350/ 6/ 8 1010.3F 1/ 4
HARRISON CRIB 77 190/ 24/ 28 N/A
NORTHERLY ISL 80 190/ 20/ 23 N/A
CALUMET HARBOR 80 170/ 15/ 25 1010.5F
BURNS HARBOR 78 190/ 9/ 12 1011.9R
MICHIGAN CITY 80 180/ 14/ 17 1009.5R
ST. JOSEPH BUOY 64 180/ 8/ 10 1012.3R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-180300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 78 65 63 S16G26 29.74F HX 80 TC 26
GALESBURG* CLEAR 78 64 61 S15G21 29.75S HX 80 TC 26
MACOMB* CLEAR 78 65 64 S13 29.77S HX 80 TC 26
JACKSONVILLE* CLEAR 78 65 63 S12G17 29.81R HX 80 TC 26
ILZ028>032-037-038-041>044-048-051>054-059>061-180300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLOUDY 76 65 68 S16 29.86R TC 24
DECATUR CLEAR 76 64 66 S14 29.87R TC 24
PEORIA CLEAR 79 63 57 S13 29.79S HX 80 TC 26
SPRINGFIELD CLEAR 78 64 61 S14G22 29.82S HX 80 TC 26
TAYLORVILLE CLEAR 77 64 65 S16 29.85F TC 25
ILZ033-039-045-046-055>057-062-063-180300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 75 62 64 S15 29.89R TC 24
DANVILLE* CLEAR 75 57 53 S9 29.92R TC 24
MATTOON CLEAR 77 58 51 S13G21 29.90R TC 25
PARIS* CLEAR 71 58 62 S9 29.92R TC 22
ILZ079-100>102-180300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 79 63 57 S21 29.85S HX 80 TC 26
BELLEVILLE CLEAR 77 66 68 S8 29.85R TC 25
CAHOKIA* CLEAR 81 64 56 S7 29.85R HX 82 TC 27
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 78 58 49 S9 29.92R TC 26
CAIRO* CLEAR 81 59 48 S8 29.94R HX 81 TC 27
EFFINGHAM* CLEAR 76 59 54 SE9 29.93R TC 25
MARION CLEAR 77 56 48 S6 29.93S TC 25
MT. VERNON CLEAR 77 58 51 S7 29.92S TC 25
CENTRALIA* CLEAR 78 59 51 S12 29.90S TC 26
SALEM* CLEAR 79 62 56 S8 29.90S HX 80 TC 26
ILZ067-068-072-073-078-083-087-091-180300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 74 61 63 S9 29.93S TC 23
FLORA* CLEAR 75 57 53 S10 29.93R TC 24
FAIRFIELD* CLEAR 77 55 47 S7 29.93S TC 25
HARRISBURG* CLEAR 72 60 65 SE6 29.95R TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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