615
ASUS43 KLOT 172207
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 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.
ILZ001-002-007-009-015-016-024-172300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 83 65 54 S18G28 29.73S HX 85 TC 28
STERLING* PTSUNNY 85 65 51 MISG 29.77F HX 86 TC 29
SAVANNA* PTSUNNY 86 63 46 S13G23 29.74S HX 87 TC 30
ILZ003-004-008-010-011-017-018-172300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 83 63 50 S17G31 29.78S HX 84 TC 28
FREEPORT* PTSUNNY 83 65 55 S20G29 29.78S HX 85 TC 28
ROCHELLE* PTSUNNY 85 60 42 S28 29.79S HX 85 TC 30
DE KALB* PTSUNNY 81 64 55 S25G33 29.81S HX 82 TC 27
PERU* PTSUNNY 84 64 51 S21G30 29.79S HX 86 TC 29
ILZ005-006-012>014-019>023-172300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 85 62 46 S20G31 29.79F HX 85 TC 29
CHICAGO-MIDWAY PTSUNNY 86 60 41 S22G36 29.80F HX 86 TC 30
AURORA PTSUNNY 85 63 47 S21G32 29.79F HX 86 TC 29
JOLIET* PTSUNNY 85 63 47 SW14G21 29.82R HX 86 TC 29
WAUKEGAN PTSUNNY 60 53 77 E6 29.80F TC 16
DUPAGE AIRPORT PTSUNNY 85 63 47 SW28G36 29.79F HX 86 TC 29
KANKAKEE* PTSUNNY 85 62 44 S18G31 29.85S HX 86 TC 30
WHEELING PTSUNNY 85 63 47 SW18G30 29.80F HX 86 TC 29
MORRIS* PTSUNNY 84 63 48 S20G25 29.81R HX 85 TC 29
ROMEOVILLE* PTSUNNY 84 64 51 S15G30 29.82S HX 86 TC 29
LANSING* MOSUNNY 84 61 46 SW25G32 29.84S HX 84 TC 29
NORTHERLY ISL* N/A 84 57 39 SW21 N/A HX 83 TC 29
LMZ740>746-172300-
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 1008.8 1/ 3
WAUKEGAN HARBOR 50 52 360/ 6/ 8 1010.3 1/ 3
HARRISON CRIB 82 200/ 26/ 27 N/A
NORTHERLY ISL 83 190/ 18/ 27 N/A
CALUMET HARBOR 85 170/ 11/ 22 1009.7F
BURNS HARBOR 85 190/ 14/ 18 1010.5F
MICHIGAN CITY 84 190/ 22/ 26 1008.5F
ST. JOSEPH BUOY 67 200/ 10/ 14 1011.6F 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-172300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 83 66 56 S21G33 29.76S HX 85 TC 28
GALESBURG* PTSUNNY 82 64 54 S15G25 29.78R HX 84 TC 28
MACOMB* CLOUDY 86 68 54 S18G25 29.79S HX 89 TC 30
JACKSONVILLE* PTSUNNY 84 67 54 S17G29 29.80S HX 87 TC 29
PITTSFIELD* CLOUDY 84 67 55 S15G29 29.80S HX 86 TC 29
ILZ028>032-037-038-041>044-048-051>054-059>061-172300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 83 62 50 MISG 29.83S HX 84 TC 28
BLOOMINGTON PTSUNNY 82 65 56 S29G37 29.82F HX 84 TC 28
DECATUR PTSUNNY 81 67 62 S23G35 29.84F HX 83 TC 27
PEORIA PTSUNNY 82 66 58 S17G31 29.79S HX 84 TC 28
LACON* PTSUNNY 83 63 50 S17G25 29.78F HX 83 TC 28
LINCOLN* PTSUNNY 83 67 56 S23G32 29.81S HX 86 TC 29
SPRINGFIELD MOSUNNY 85 63 47 S28G40 29.81S HX 86 TC 29
TAYLORVILLE MOSUNNY 82 66 57 S21G28 29.83F HX 85 TC 28
ILZ033-039-045-046-055>057-062-063-172300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 81 64 56 S26G37 29.88S HX 82 TC 27
DANVILLE* MOSUNNY 84 62 47 S21G35 29.90S HX 85 TC 29
RANTOUL* PTSUNNY 83 62 49 S24G33 29.87S HX 83 TC 28
MATTOON PTSUNNY 80 63 55 S14G29 29.89F HX 81 TC 27
PARIS* MOSUNNY 84 61 46 S21G28 29.91F HX 84 TC 29
ILZ079-100>102-172300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 84 64 51 S18G32 29.85S HX 86 TC 29
BELLEVILLE SUNNY 86 66 50 S22G29 29.84F HX 88 TC 30
CAHOKIA* MOSUNNY 88 64 44 S10G29 29.84S HX 89 TC 31
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-172300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 87 62 43 S18G30 29.90F HX 87 TC 31
CAIRO* MOSUNNY 89 62 41 SE17 29.92F HX 89 TC 32
EFFINGHAM* MOSUNNY 83 63 49 SE14G22 29.92F HX 84 TC 29
MARION MOSUNNY 86 63 45 S16G28 29.92S HX 87 TC 30
MT. VERNON SUNNY 86 64 47 S18 29.91F HX 87 TC 30
CENTRALIA* MOSUNNY 84 64 50 S10G22 29.90S HX 86 TC 29
SALEM* MOSUNNY 85 65 51 S15G21 29.90S HX 86 TC 29
METROPOLIS* SUNNY 86 57 36 SE10G16 29.95S HX 85 TC 30
ILZ067-068-072-073-078-083-087-091-172300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 86 58 38 S21G28 29.93F HX 85 TC 30
FLORA* SUNNY 84 63 48 S16 29.92S HX 85 TC 29
FAIRFIELD* SUNNY 85 60 44 S16 29.93S HX 85 TC 29
HARRISBURG* SUNNY 86 60 42 S15 29.94S HX 86 TC 30
ROBINSON* MOSUNNY 86 61 42 S17G25 29.92F HX 86 TC 30
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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