104
ASUS43 KLOT 151701
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 PM CDT FRI MAY 15 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.
ILZ001-002-007-009-015-016-024-151800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 73 53 49 S14G21 29.81F TC 23
STERLING* SUNNY 72 51 47 S10G16 29.86F TC 22
SAVANNA* SUNNY 73 52 48 SW12 29.84F TC 23
ILZ003-004-008-010-011-017-018-151800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD SUNNY 71 52 50 S16G28 29.87F TC 22
FREEPORT* SUNNY 71 55 56 S16G23 29.87F TC 22
DE KALB* SUNNY 68 52 56 S24G32 29.90S TC 20
PERU* SUNNY 70 50 49 S18G25 29.89F TC 21
ILZ005-006-012>014-019>023-151800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 64 48 56 S18G33 29.90F TC 18
CHICAGO-MIDWAY PTSUNNY 62 48 60 S17G31 29.94F TC 17
AURORA SUNNY 68 49 50 S20G35 29.89F TC 20
JOLIET* CLOUDY 65 50 58 S14G21 29.94F TC 18
WAUKEGAN SUNNY 67 50 54 S22G29 29.88F TC 19
DUPAGE AIRPORT SUNNY 65 51 60 S23G32 29.89F TC 18
KANKAKEE* CLOUDY 60 45 57 S14 29.97F TC 16
WHEELING MOSUNNY 65 49 56 S22G32 29.91F TC 18
MORRIS* PTSUNNY 66 48 52 S17G25 29.92F TC 19
ROMEOVILLE* PTSUNNY 63 50 63 S18G30 29.94F TC 17
LANSING* CLOUDY 58 48 68 S14 29.96F TC 15
NORTHERLY ISL* N/A 60 46 59 S21 N/A TC 16
LMZ740>746-151800-
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 49 1011.2F 2/ 3
WAUKEGAN HARBOR 58 51 180/ 14/ 19 1012.6 2/ 4
HARRISON CRIB 58 190/ 16/ 17 N/A
NORTHERLY ISL 59 180/ 13/ 20 N/A
CALUMET HARBOR 59 180/ 13/ 18 1013.7
BURNS HARBOR 59 190/ 10/ 14 1015.2F
MICHIGAN CITY 60 180/ 14/ 19 1013.7F
ST. JOSEPH BUOY 57 200/ 12/ 16 1015.3F 1/ 3
ILZ025>027-034>036-040-047-049-050-058-095>099-151800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 72 55 55 S12G22 29.84F TC 22
GALESBURG* SUNNY 69 52 55 S10 29.86F TC 20
MACOMB* SUNNY 69 57 64 S15G21 29.87F TC 21
JACKSONVILLE* SUNNY 70 55 58 S15 29.87F TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-151800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BLOOMINGTON SUNNY 64 52 64 S24G30 29.93F TC 18
DECATUR PTSUNNY 63 50 62 S14 29.93F TC 17
PEORIA SUNNY 66 52 60 S13G24 29.89F TC 19
SPRINGFIELD SUNNY 69 53 56 S17G24 29.89F TC 21
TAYLORVILLE PTSUNNY 64 54 68 S17G23 29.92F TC 18
ILZ033-039-045-046-055>057-062-063-151800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 59 50 72 SE17 29.96F TC 15
DANVILLE* CLOUDY 59 50 71 S15 30.00F TC 15
MATTOON CLOUDY 61 51 70 SE15G29 29.95F TC 16
PARIS* CLOUDY 56 48 74 SE14 30.00F TC 14
ILZ079-100>102-151800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 73 50 43 S17G24 29.90F TC 23
CAHOKIA* SUNNY 78 51 38 S14G23 29.88F TC 26
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-151800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 73 48 41 S14 29.95F TC 23
CAIRO* CLOUDY 79 50 35 S9G18 29.99S TC 26
EFFINGHAM* CLOUDY 63 49 60 SE10G17 29.97F TC 17
MARION PTSUNNY 73 48 40 S12 29.98F TC 23
MT. VERNON MOSUNNY 71 49 45 S15 29.96F TC 22
CENTRALIA* MOSUNNY 70 48 46 S17G23 29.94F TC 21
SALEM* MOSUNNY 71 49 46 S10G18 29.94F TC 22
ILZ067-068-072-073-078-083-087-091-151800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 68 48 48 S15G24 30.01F TC 20
FLORA* PTSUNNY 63 48 59 S14 29.96F TC 17
FAIRFIELD* CLOUDY 68 44 41 S20G25 29.97F TC 20
HARRISBURG* PTSUNNY 72 52 48 S15 29.99F TC 22
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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