920
ASUS43 KLOT 201510
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM CDT WED MAY 20 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.
ILZ001-002-007-009-015-016-024-201600-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOSUNNY 58 44 60 NE13 30.27S TC 14
STERLING* SUNNY 60 43 53 N10 30.27F TC 16
SAVANNA* MOSUNNY 58 42 56 NE9 30.28F TC 14
ILZ003-004-008-010-011-017-018-201600-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 58 42 55 N8 30.28S TC 14
FREEPORT* MOSUNNY 58 43 56 N14 30.29S TC 15
ROCHELLE* MOSUNNY 59 39 48 E10G17 30.27S TC 15
DE KALB* MOSUNNY 58 44 58 NE13 30.27S TC 15
PERU* MOSUNNY 61 43 51 N10 30.25F TC 16
ILZ005-006-012>014-019>023-201600-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 59 43 55 N17G24 30.25R TC 15
CHICAGO-MIDWAY PTSUNNY 58 42 55 NE17 30.25S TC 14
AURORA MOSUNNY 58 46 64 NE15 30.25R TC 14
JOLIET* PTSUNNY 62 47 58 NE12 30.24S TC 16
WAUKEGAN MOSUNNY 56 44 64 NE12 30.27R TC 13
DUPAGE AIRPORT MOSUNNY 57 45 64 NE10 30.25R TC 14
KANKAKEE* PTSUNNY 60 45 57 NE14 30.23S TC 15
WHEELING PTSUNNY 56 43 61 NE9 30.27S TC 13
MORRIS* PTSUNNY 61 45 55 NE6 30.24S TC 16
ROMEOVILLE* PTSUNNY 59 46 63 NE13G21 30.25R TC 15
LANSING* CLOUDY 55 46 69 NE10 30.26R TC 13
NORTHERLY ISL* N/A 55 45 68 N12 N/A TC 13
LMZ740>746-201600-
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 47 1022.8 1/ 3
WAUKEGAN HARBOR 50 51 340/ 10/ 14 1023.8 1/ 2
WILMETTE BUOY 51 40/ 12/ 16 1025.6R 1/ 3
CHICAGO BUOY 53 54 10/ 14/ 17 1023.3 2/ 3
HARRISON CRIB 52 10/ 14/ 16 N/A
NORTHERLY ISL 55 360/ 7/ 15 N/A
CALUMET HARBOR 53 360/ 9/ 14 1024.3
BURNS HARBOR 50 20/ 6/ 7 1024.4S
MICHIGAN CITY 51 10/ 5/ 7 1023.6R
ST. JOSEPH BUOY 51 350/ 10/ 14 1024.4R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201600-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 56 46 69 N13 30.25F TC 13
GALESBURG* PTSUNNY 56 46 67 NE12 30.28S TC 14
MACOMB* SUNNY 56 47 72 NE13 30.28F TC 14
JACKSONVILLE* MOSUNNY 56 48 74 NE9 30.24S TC 13
PITTSFIELD* MOSUNNY 58 48 68 N10 30.26R TC 15
ILZ028>032-037-038-041>044-048-051>054-059>061-201600-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 59 48 66 MISG 30.24S TC 15
BLOOMINGTON CLOUDY 58 48 69 NE13 30.24S TC 14
DECATUR PTSUNNY 58 50 75 N10 30.21F TC 14
PEORIA MOSUNNY 59 45 59 NE9 30.24F TC 15
LACON* MOSUNNY 58 43 56 NE6 30.25S TC 15
LINCOLN* PTSUNNY 60 49 65 N8G16 30.23F TC 16
SPRINGFIELD PTSUNNY 59 49 69 N12 30.22F TC 15
TAYLORVILLE PTSUNNY 57 50 77 N12 30.22F TC 14
ILZ033-039-045-046-055>057-062-063-201600-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 58 48 69 N16 30.20S TC 14
DANVILLE* PTSUNNY 60 50 70 N15 30.20F TC 16
RANTOUL* CLOUDY 59 46 61 NE16 30.20F TC 15
MATTOON PTSUNNY 59 52 77 N13 30.19R TC 15
PARIS* CLOUDY 60 53 79 N8 30.18S TC 15
ILZ079-100>102-201600-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 57 48 72 N10 30.22S TC 14
BELLEVILLE CLOUDY 59 53 80 N10 30.20S TC 15
CAHOKIA* CLOUDY 58 50 75 N9 30.21F TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201600-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 63 62 95 N7 30.14F TC 17
EFFINGHAM* PTSUNNY 59 54 84 NW9 30.21S TC 15
MARION CLOUDY 61 57 88 N14 30.17R TC 16
MT. VERNON CLOUDY 59 53 80 VRB5 30.18S TC 15
CENTRALIA* DRIZZLE 58 51 79 N9 30.19S TC 14
SALEM* CLOUDY 58 54 85 MISG 30.19S TC 15
METROPOLIS* LGT RAIN 64 64 100 NW7 30.14R TC 18
ILZ067-068-072-073-078-083-087-091-201600-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 60 57 89 NW9 30.16 TC 16
FLORA* PTSUNNY 59 54 82 N9 30.19S TC 15
FAIRFIELD* CLOUDY 59 54 85 N6 30.17S TC 15
HARRISBURG* CLOUDY 61 58 92 N9 30.16R TC 16
ROBINSON* CLOUDY 61 57 88 N7 30.16R TC 16
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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