831
ASUS43 KLOT 151610
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM 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.
ILZ001-002-007-009-015-016-024-151700-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 70 52 52 S13G23 29.83F TC 21
STERLING* SUNNY 69 52 54 S10G17 29.87F TC 21
SAVANNA* SUNNY 69 51 52 S10 29.85S TC 21
ILZ003-004-008-010-011-017-018-151700-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD SUNNY 68 51 54 S22G30 29.88F TC 20
FREEPORT* SUNNY 68 55 62 S18G24 29.88F TC 20
ROCHELLE* SUNNY 69 47 46 S24G30 29.89F TC 20
DE KALB* SUNNY 65 51 61 S23G31 29.91F TC 18
PERU* SUNNY 68 50 52 S21G29 29.90F TC 20
ILZ005-006-012>014-019>023-151700-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 61 47 59 S21G35 29.92F TC 16
CHICAGO-MIDWAY PTSUNNY 58 47 66 S14G35 29.95F TC 14
AURORA MOSUNNY 64 50 60 S22G31 29.92F TC 18
JOLIET* CLOUDY 62 51 66 S14G21 29.95F TC 17
WAUKEGAN MOSUNNY 64 49 57 S21G30 29.89F TC 18
DUPAGE AIRPORT MOSUNNY 61 49 64 S21G30 29.92F TC 16
KANKAKEE* CLOUDY 59 46 62 S14G20 29.98F TC 15
WHEELING CLOUDY 63 48 58 S16G26 29.94S TC 17
MORRIS* CLOUDY 64 48 55 S18G24 29.93S TC 18
ROMEOVILLE* CLOUDY 59 50 72 S15G23 29.95F TC 15
LANSING* CLOUDY 58 47 67 S15 29.97F TC 15
NORTHERLY ISL* N/A 59 45 59 S12 N/A TC 15
LMZ740>746-151700-
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 50 1011.5 2/ 3
WAUKEGAN HARBOR 57 51 190/ 16/ 19 1013.0F 2/ 3
NORTHERLY ISL 58 200/ 16/ 19 N/A
CALUMET HARBOR 58 180/ 14/ 19 1013.9
BURNS HARBOR 59 200/ 10/ 13 1015.6R
MICHIGAN CITY 60 180/ 16/ 18 1014.1S
ST. JOSEPH BUOY 57 190/ 12/ 16 1015.8S 1/ 2
ILZ025>027-034>036-040-047-049-050-058-095>099-151700-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 69 52 54 S15 29.85F TC 21
GALESBURG* SUNNY 65 52 60 S14 29.88F TC 19
MACOMB* SUNNY 66 55 68 S17 29.89F TC 19
JACKSONVILLE* SUNNY 67 52 59 S13G18 29.89F TC 19
PITTSFIELD* SUNNY 69 55 59 S12 29.88F TC 21
ILZ028>032-037-038-041>044-048-051>054-059>061-151700-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 62 50 65 MISG 29.94F TC 17
BLOOMINGTON CLOUDY 60 50 69 S21G29 29.94F TC 16
DECATUR CLOUDY 57 49 74 S16G22 29.95F TC 14
PEORIA SUNNY 63 51 65 S20G26 29.91 TC 17
LACON* SUNNY 65 50 58 SW10G21 29.90F TC 18
LINCOLN* CLOUDY 61 52 71 S15G21 29.92F TC 16
SPRINGFIELD LGT RAIN 64 50 60 S17 29.91F TC 18
TAYLORVILLE CLOUDY 61 50 67 SE13G20 29.94F TC 16
ILZ033-039-045-046-055>057-062-063-151700-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 57 49 74 SE16 29.98F TC 14
DANVILLE* CLOUDY 56 49 79 S10 30.02S TC 13
RANTOUL* CLOUDY 58 48 69 S17G23 29.98F TC 14
MATTOON CLOUDY 58 50 75 SE14 29.97F TC 14
PARIS* CLOUDY 55 47 76 S14 30.02F TC 13
ILZ079-100>102-151700-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 70 48 46 S16G22 29.93F TC 21
BELLEVILLE MOSUNNY 71 54 54 S15 29.91F TC 22
CAHOKIA* PTSUNNY 73 49 42 S13G24 29.91F TC 23
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-151700-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 72 47 40 S10 29.98F TC 22
CAIRO* PTSUNNY 74 48 39 S10 30.00F TC 23
EFFINGHAM* CLOUDY 59 50 73 SE8 29.99F TC 15
MARION PTSUNNY 70 48 46 SE12 30.00F TC 21
MT. VERNON N/A 67 47 48 SE12G18 29.98F TC 19
CENTRALIA* PTSUNNY 66 46 48 SE10 29.97S TC 19
SALEM* CLOUDY 65 47 53 S9 29.96F TC 18
METROPOLIS* PTSUNNY 73 48 41 S12G17 30.01F TC 23
ILZ067-068-072-073-078-083-087-091-151700-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE PTSUNNY 63 49 60 SE7 30.03R TC 17
FLORA* PTSUNNY 59 48 67 S15 29.98F TC 15
FAIRFIELD* CLOUDY 64 42 45 S14 30.00S TC 18
HARRISBURG* CLOUDY 67 48 50 SE13 30.02F TC 20
ROBINSON* PTSUNNY 61 52 72 SE9 30.02F TC 16
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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