778
ASUS43 KLOT 172101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-172200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 84 66 54 S14G25 29.73F HX 86 TC 29
STERLING* PTSUNNY 84 65 52 VRB7G18 29.78F HX 86 TC 29
SAVANNA* PTSUNNY 85 65 50 S15 29.75S HX 87 TC 30
ILZ003-004-008-010-011-017-018-172200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 83 64 52 S22G30 29.78F HX 84 TC 28
FREEPORT* CLOUDY 83 67 57 S24 29.78F HX 85 TC 28
DE KALB* PTSUNNY 81 65 57 S21 29.82F HX 83 TC 27
PERU* PTSUNNY 84 64 51 S25 29.80S HX 86 TC 29
ILZ005-006-012>014-019>023-172200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 85 61 44 S22G33 29.80F HX 85 TC 29
CHICAGO-MIDWAY PTSUNNY 86 61 42 S22G37 29.81F HX 86 TC 30
AURORA PTSUNNY 86 63 45 S18G29 29.80F HX 87 TC 30
JOLIET* PTSUNNY 86 64 48 S16G24 29.82S HX 87 TC 30
WAUKEGAN PTSUNNY 60 53 77 E6 29.81F TC 16
DUPAGE AIRPORT PTSUNNY 84 64 50 S15G28 29.80F HX 85 TC 29
KANKAKEE* PTSUNNY 85 62 45 S21G30 29.85F HX 85 TC 29
WHEELING PTSUNNY 84 61 45 SW16G28 29.82F HX 84 TC 29
MORRIS* PTSUNNY 84 63 48 SW24G32 29.80S HX 85 TC 29
ROMEOVILLE* PTSUNNY 84 64 51 S24G37 29.82F HX 86 TC 29
LANSING* PTSUNNY 84 61 45 S21G31 29.84F HX 84 TC 29
NORTHERLY ISL* N/A 84 57 39 S20 N/A HX 83 TC 29
LMZ740>746-172200-
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 1008.1R 1/ 2
WAUKEGAN HARBOR 49 52 350/ 10/ 14 1010.8F 1/ 2
HARRISON CRIB 79 200/ 23/ 25 N/A
NORTHERLY ISL 84 180/ 12/ 27 N/A
CALUMET HARBOR 85 170/ 14/ 24 1010.1
BURNS HARBOR 83 190/ 11/ 16 1010.8S
MICHIGAN CITY 83 180/ 21/ 26 1009.0R
ST. JOSEPH BUOY 70 200/ 14/ 17 1011.8R 2/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-172200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 83 67 58 S17G31 29.76F HX 85 TC 28
GALESBURG* PTSUNNY 83 65 52 S24G32 29.77S HX 85 TC 29
MACOMB* PTSUNNY 85 67 55 S21G28 29.79S HX 88 TC 29
JACKSONVILLE* PTSUNNY 83 67 59 S21G29 29.80F HX 85 TC 28
ILZ028>032-037-038-041>044-048-051>054-059>061-172200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON PTSUNNY 81 65 58 S32G41 29.83F HX 83 TC 27
DECATUR PTSUNNY 81 67 62 S20G32 29.86F HX 83 TC 27
PEORIA CLOUDY 83 65 54 S22G31 29.79F HX 85 TC 28
SPRINGFIELD CLOUDY 84 64 50 S26G40 29.81F HX 85 TC 29
TAYLORVILLE CLOUDY 81 66 61 S22 29.86F HX 83 TC 27
ILZ033-039-045-046-055>057-062-063-172200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 83 64 52 S28G40 29.88F HX 84 TC 28
DANVILLE* PTSUNNY 85 63 47 S25G33 29.90F HX 86 TC 29
MATTOON MOSUNNY 81 65 58 S12G24 29.90F HX 83 TC 27
PARIS* PTSUNNY 83 62 49 S24G30 29.93F HX 84 TC 28
ILZ079-100>102-172200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 86 64 48 S18G32 29.85F HX 87 TC 30
BELLEVILLE MOSUNNY 87 66 50 SW21G28 29.85F HX 89 TC 30
CAHOKIA* MOSUNNY 87 64 46 S15G33 29.84F HX 88 TC 31
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-172200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 87 62 43 S18G28 29.91F HX 87 TC 31
CAIRO* MOSUNNY 89 63 41 SE17 29.93F HX 90 TC 32
EFFINGHAM* PTSUNNY 81 66 59 SE8 29.93F HX 83 TC 27
MARION MOSUNNY 86 64 48 S18 29.92F HX 87 TC 30
MT. VERNON MOSUNNY 86 65 49 S16 29.92F HX 88 TC 30
CENTRALIA* PTSUNNY 85 65 51 S16 29.91S HX 87 TC 29
SALEM* PTSUNNY 84 66 54 S18G24 29.91S HX 86 TC 29
ILZ067-068-072-073-078-083-087-091-172200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 85 59 41 S24G32 29.94F HX 84 TC 29
FLORA* MOSUNNY 84 64 51 S23 29.93S HX 86 TC 29
FAIRFIELD* MOSUNNY 85 60 43 S16G25 29.93F HX 85 TC 30
HARRISBURG* SUNNY 86 62 44 S16 29.94F 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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