291
ASUS43 KLOT 171511
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM 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.
ILZ001-002-007-009-015-016-024-171600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 72 66 81 S8 29.82R TC 22
STERLING* CLOUDY 71 66 84 SE8 29.81F TC 22
SAVANNA* DRIZZLE 69 64 85 SE14 29.79F TC 21
ILZ003-004-008-010-011-017-018-171600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 72 64 76 SE10G21 29.85F TC 22
FREEPORT* CLOUDY 68 67 96 SE7 29.87R TC 20
ROCHELLE* CLOUDY 73 63 70 SE20 29.85F TC 23
DE KALB* PTSUNNY 73 66 78 S15 29.88F TC 23
PERU* CLOUDY 77 64 65 S17G23 29.85F TC 25
ILZ005-006-012>014-019>023-171600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 74 65 73 S6 29.89F TC 23
CHICAGO-MIDWAY PTSUNNY 75 65 70 S14 29.90F TC 24
AURORA PTSUNNY 76 66 71 S14G22 29.87F TC 24
JOLIET* PTSUNNY 77 68 75 S7 29.90F TC 25
WAUKEGAN PTSUNNY 56 48 74 E8 29.91F TC 13
DUPAGE AIRPORT PTSUNNY 74 67 78 S10 29.89F TC 23
KANKAKEE* PTSUNNY 77 66 67 S14 29.93F TC 25
WHEELING PTSUNNY 60 50 69 NE7 29.92F TC 16
MORRIS* PTSUNNY 77 64 65 S8 29.88F TC 25
ROMEOVILLE* SUNNY 73 68 83 S12G17 29.91F TC 23
LANSING* PTSUNNY 77 66 68 S13G18 29.93F TC 25
NORTHERLY ISL* N/A 59 53 80 N7 N/A TC 15
LMZ740>746-171600-
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 1004.4 2/ 4
WAUKEGAN HARBOR 49 52 360/ 10/ 12 1013.6 1/ 4
HARRISON CRIB 53 360/ 8/ 9 N/A
NORTHERLY ISL 60 20/ 10 N/A
CALUMET HARBOR 74 180/ 10/ 15 1013.1F
BURNS HARBOR 76 180/ 7/ 11 1013.9F
MICHIGAN CITY 75 180/ 11/ 16 1012.3F
ST. JOSEPH BUOY 62 180/ 4/ 6 1014.9F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-171600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 72 65 78 S12G21 29.84R TC 22
GALESBURG* PTSUNNY 73 65 74 S15G22 29.85R TC 23
MACOMB* CLOUDY 75 66 74 S15G24 29.86R TC 24
JACKSONVILLE* CLOUDY 73 65 77 S18 29.87S TC 23
PITTSFIELD* CLOUDY 73 66 78 S13G20 29.87F TC 23
ILZ028>032-037-038-041>044-048-051>054-059>061-171600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 77 66 70 MISG 29.89F TC 25
BLOOMINGTON PTSUNNY 75 67 76 S20G28 29.90F TC 24
DECATUR PTSUNNY 75 66 73 S21G29 29.92F TC 24
PEORIA PTSUNNY 74 65 73 S17G26 29.86S TC 23
LACON* PTSUNNY 74 64 71 S12 29.84F TC 23
LINCOLN* PTSUNNY 76 68 76 S22 29.89F TC 24
SPRINGFIELD CLOUDY 75 66 73 S17G26 29.89S TC 24
TAYLORVILLE CLOUDY 75 66 73 S20G26 29.92S TC 24
ILZ033-039-045-046-055>057-062-063-171600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 76 67 73 S25 29.94F TC 24
DANVILLE* MOSUNNY 77 67 70 S17G25 29.97F TC 25
RANTOUL* PTSUNNY 76 66 71 S16G24 29.94F TC 24
MATTOON PTSUNNY 75 64 68 S18G25 29.97F TC 24
PARIS* MOSUNNY 76 65 69 S17 29.99F TC 25
ILZ079-100>102-171600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 77 66 69 S17G29 29.92F TC 25
BELLEVILLE PTSUNNY 77 68 74 SW21 29.92F TC 25
CAHOKIA* PTSUNNY 77 65 66 S12G24 29.91F TC 25
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 78 65 63 S16 30.00F HX 80 TC 26
CAIRO* CLOUDY 78 64 61 S8 30.04R HX 80 TC 26
EFFINGHAM* PTSUNNY 75 68 77 SE8G18 30.00S TC 24
MARION MOSUNNY 77 64 65 S12 30.02S TC 25
MT. VERNON PTSUNNY 77 65 66 S15 30.00F TC 25
CENTRALIA* PTSUNNY 77 65 67 S17 29.98F TC 25
SALEM* PTSUNNY 77 67 70 S13G23 29.97F TC 25
METROPOLIS* MOSUNNY 79 64 60 S10G16 30.05R HX 80 TC 26
ILZ067-068-072-073-078-083-087-091-171600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 77 66 68 SW14 30.02S TC 25
FLORA* MOSUNNY 75 66 73 S14G21 30.00F TC 24
FAIRFIELD* PTSUNNY 77 63 61 SW13 30.01S TC 25
HARRISBURG* MOSUNNY 77 64 63 S13 30.04R TC 25
ROBINSON* MOSUNNY 77 68 73 S14G21 30.01F TC 25
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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