038
ASUS43 KLOT 171708
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 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.
ILZ001-002-007-009-015-016-024-171800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 78 67 68 S13G22 29.76F HX 80 TC 26
STERLING* CLOUDY 76 66 71 SE13G21 29.79F TC 24
SAVANNA* CLOUDY 77 65 66 S12G20 29.80F TC 25
ILZ003-004-008-010-011-017-018-171800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 75 65 70 S15G28 29.85F TC 24
FREEPORT* CLOUDY 74 69 81 S18 29.84F TC 24
ROCHELLE* CLOUDY 80 63 56 S23 29.86F HX 81 TC 26
DE KALB* CLOUDY 78 67 68 S24 29.89F HX 80 TC 25
PERU* PTSUNNY 81 64 57 S22 29.87S HX 82 TC 27
ILZ005-006-012>014-019>023-171800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 78 65 63 S15 29.88S HX 80 TC 26
CHICAGO-MIDWAY PTSUNNY 81 65 58 S15 29.89S HX 83 TC 27
AURORA PTSUNNY 81 65 58 S18G28 29.87S HX 83 TC 27
JOLIET* PTSUNNY 83 68 60 S12G18 29.90S HX 85 TC 28
WAUKEGAN CLOUDY 55 48 77 E7 29.90F TC 13
DUPAGE AIRPORT PTSUNNY 79 67 66 S20G26 29.88R HX 81 TC 26
KANKAKEE* PTSUNNY 80 65 59 S15G22 29.93R HX 82 TC 27
WHEELING CLOUDY 67 55 65 E6 29.90F TC 19
MORRIS* CLOUDY 82 64 54 S15G21 29.89R HX 84 TC 28
ROMEOVILLE* MOSUNNY 81 68 65 S20 29.91R HX 83 TC 27
LANSING* PTSUNNY 80 65 59 S14 29.91F HX 82 TC 27
NORTHERLY ISL* N/A 62 54 74 NE5 N/A TC 17
LMZ740>746-171800-
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 1005.7 1/ 3
WAUKEGAN HARBOR 49 52 360/ 8/ 12 1013.1 1/ 3
HARRISON CRIB 53 10/ 5/ 5 N/A
NORTHERLY ISL 58 10/ 1/ 9 N/A
CALUMET HARBOR 66 350/ 5/ 6 1012.7
BURNS HARBOR 78 200/ 7/ 10 1013.5F
MICHIGAN CITY 79 150/ 9/ 12 1011.4F
ST. JOSEPH BUOY 65 170/ 6/ 8 1014.3F 0
ILZ025>027-034>036-040-047-049-050-058-095>099-171800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY PTSUNNY 77 67 71 S15G24 29.84S TC 25
GALESBURG* PTSUNNY 79 65 62 S17G24 29.83F HX 81 TC 26
MACOMB* CLOUDY 80 67 64 S18G24 29.86F HX 83 TC 27
JACKSONVILLE* CLOUDY 77 68 72 S14 29.89S TC 25
PITTSFIELD* CLOUDY 77 68 75 S12 29.88S TC 25
ILZ028>032-037-038-041>044-048-051>054-059>061-171800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 82 66 58 MISG 29.91S HX 85 TC 28
BLOOMINGTON PTSUNNY 79 67 66 S22G28 29.92R HX 81 TC 26
DECATUR PTSUNNY 79 69 71 S21G29 29.92S HX 81 TC 26
PEORIA PTSUNNY 80 67 64 S15 29.87F HX 82 TC 27
LACON* PTSUNNY 79 65 60 SW14 29.87F HX 81 TC 26
LINCOLN* PTSUNNY 81 69 68 S13G18 29.91S HX 84 TC 27
SPRINGFIELD PTSUNNY 79 68 69 S15G26 29.90R HX 81 TC 26
TAYLORVILLE PTSUNNY 79 68 69 S18G25 29.92R HX 81 TC 26
ILZ033-039-045-046-055>057-062-063-171800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 80 68 66 S24 29.94R HX 83 TC 27
DANVILLE* MOSUNNY 82 66 58 S21G30 29.96S HX 83 TC 28
RANTOUL* CLOUDY 80 65 61 S22G28 29.94R HX 81 TC 26
MATTOON MOSUNNY 78 66 66 S17G40 29.95F HX 80 TC 26
PARIS* MOSUNNY 80 66 61 S21G29 29.97F HX 82 TC 27
ILZ079-100>102-171800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 81 66 61 S21G31 29.91R HX 83 TC 27
BELLEVILLE MOSUNNY 82 70 68 S21G28 29.90F HX 85 TC 28
CAHOKIA* PTSUNNY 82 66 58 S16G29 29.90R HX 84 TC 28
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 82 66 58 S18G28 29.98F HX 84 TC 28
CAIRO* MOSUNNY 84 66 54 SW12 30.02F HX 86 TC 29
EFFINGHAM* MOSUNNY 81 69 65 S15G21 29.97F HX 84 TC 27
MARION MOSUNNY 81 66 61 S14 30.00F HX 83 TC 27
MT. VERNON MOSUNNY 82 67 60 S20G26 29.98F HX 84 TC 28
CENTRALIA* MOSUNNY 80 67 63 S17G25 29.96S HX 83 TC 27
SALEM* MOSUNNY 81 69 65 S20 29.96F HX 84 TC 27
METROPOLIS* MOSUNNY 82 65 57 S7 30.03F HX 83 TC 28
ILZ067-068-072-073-078-083-087-091-171800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 80 67 64 S17G26 30.01S HX 82 TC 27
FLORA* MOSUNNY 81 68 65 S20 29.98F HX 83 TC 27
FAIRFIELD* SUNNY 82 64 56 S15 29.99F HX 83 TC 28
HARRISBURG* MOSUNNY 82 65 58 S12G20 30.02F HX 83 TC 28
ROBINSON* MOSUNNY 81 68 65 S17G24 29.99F HX 83 TC 27
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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