977
ASUS43 KLOT 180303
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 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.
ILZ001-002-007-009-015-016-024-180400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 78 64 61 S9G21 29.73R HX 80 TC 26
STERLING* CLEAR 78 63 59 VRB5 29.78R HX 80 TC 26
SAVANNA* PTCLDY 79 63 58 S10 29.75R HX 80 TC 26
ILZ003-004-008-010-011-017-018-180400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTCLDY 77 64 64 SE12G20 29.79R TC 25
FREEPORT* PTCLDY 75 67 75 S9 29.79R TC 24
DE KALB* PTCLDY 75 64 68 S17G23 29.82S TC 24
PERU* PTCLDY 79 63 57 S16 29.79S HX 80 TC 26
ILZ005-006-012>014-019>023-180400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOCLDY 78 61 55 S13G29 29.81R HX 80 TC 26
CHICAGO-MIDWAY PTCLDY 79 61 53 S16G25 29.83R HX 80 TC 26
AURORA MOCLDY 78 63 59 S20G31 29.81S HX 80 TC 26
JOLIET* CLOUDY 80 63 56 S13G20 29.84S HX 81 TC 26
WAUKEGAN PTCLDY 53 50 89 E3 29.82R TC 12
DUPAGE AIRPORT PTCLDY 77 63 61 S18G29 29.81S TC 25
KANKAKEE* MOCLDY 77 60 56 S13G18 29.89S TC 25
WHEELING PTCLDY 78 62 57 S16G26 29.82S HX 80 TC 26
MORRIS* CLOUDY 79 63 57 S13G24 29.82S HX 80 TC 26
LANSING* PTCLDY 76 60 57 S14G22 29.87S TC 24
NORTHERLY ISL* N/A 78 58 49 S14 N/A TC 26
LMZ740>746-180400-
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 1006.6F 2/ 4
WAUKEGAN HARBOR 50 52 330/ 6/ 8 1010.7R 2/ 4
HARRISON CRIB 76 190/ 26/ 28 N/A
NORTHERLY ISL 79 190/ 16/ 25 N/A
CALUMET HARBOR 79 180/ 14/ 20 1010.8
BURNS HARBOR 77 190/ 9/ 14 1011.9S
MICHIGAN CITY 78 180/ 11/ 16 1010.0R
ST. JOSEPH BUOY 64 180/ 8/ 10 1012.8R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-180400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 77 65 66 S14G23 29.76R TC 25
GALESBURG* CLEAR 77 63 62 S15G21 29.77R TC 25
MACOMB* CLEAR 77 65 67 S16G24 29.78R TC 25
JACKSONVILLE* CLEAR 77 64 65 S13G18 29.80F TC 25
ILZ028>032-037-038-041>044-048-051>054-059>061-180400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON CLEAR 75 63 66 S22 29.86S TC 24
DECATUR N/A N/A N/A N/A MISG 29.88R
PEORIA CLEAR 78 63 59 S14 29.79S HX 80 TC 26
SPRINGFIELD CLEAR 77 63 61 S13 29.83R TC 25
TAYLORVILLE CLEAR 75 64 69 S14 29.86S TC 24
ILZ033-039-045-046-055>057-062-063-180400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 72 60 66 S13 29.90R TC 22
DANVILLE* CLEAR 73 58 57 S8 29.93S TC 23
MATTOON CLEAR 75 56 51 S9 29.91R TC 24
PARIS* CLEAR 71 58 62 S10 29.94R TC 22
ILZ079-100>102-180400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 77 64 65 S10 29.86R TC 25
CAHOKIA* CLEAR 79 64 60 S9 29.86R HX 81 TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-180400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE CLEAR 77 58 51 S9 29.93R TC 25
CAIRO* CLEAR 79 60 51 S8 29.96R HX 80 TC 26
EFFINGHAM* CLEAR 75 56 52 SE7 29.94R TC 24
MARION CLEAR 76 56 51 S9 29.96R TC 24
MT. VERNON CLEAR 76 58 53 S8 29.94R TC 24
CENTRALIA* CLEAR 77 57 50 S12 29.92R TC 25
SALEM* CLEAR 77 60 54 S8 29.92R TC 25
ILZ067-068-072-073-078-083-087-091-180400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 71 63 75 S7 29.96R TC 22
FLORA* CLEAR 72 59 64 S9 29.94R TC 22
FAIRFIELD* CLEAR 74 58 56 S7 29.94S TC 24
HARRISBURG* CLEAR 68 61 77 S6 29.97R TC 20
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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