668
ASUS43 KLOT 201310
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-201400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 52 44 74 N9 30.27R TC 11
STERLING* SUNNY 53 44 71 N12 30.27S TC 12
SAVANNA* SUNNY 52 43 71 N8 30.28R TC 11
ILZ003-004-008-010-011-017-018-201400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 53 44 71 N9 30.26F TC 12
FREEPORT* SUNNY 52 47 84 N9 30.29R TC 11
ROCHELLE* MOSUNNY 51 41 69 N12 30.26S TC 11
DE KALB* MOSUNNY 52 43 70 N13 30.25S TC 11
PERU* MOSUNNY 55 43 62 N12 30.25R TC 13
ILZ005-006-012>014-019>023-201400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 55 42 61 N15 30.23R TC 13
CHICAGO-MIDWAY PTSUNNY 56 43 61 N15 30.22R TC 13
AURORA MOSUNNY 54 43 66 N14 30.23R TC 12
JOLIET* CLOUDY 57 44 62 N9 30.23R TC 14
WAUKEGAN MOSUNNY 53 43 68 NE10 30.24R TC 12
DUPAGE AIRPORT MOSUNNY 54 43 66 N14 30.23R TC 12
KANKAKEE* CLOUDY 56 42 59 NE13 30.23R TC 14
WHEELING MOSUNNY 55 43 63 NE10G17 30.25R TC 13
MORRIS* PTSUNNY 55 43 62 NE7 30.22S TC 13
ROMEOVILLE* PTSUNNY 55 45 67 N14 30.23R TC 13
LANSING* PTSUNNY 56 43 63 N9 30.23R TC 13
NORTHERLY ISL* N/A 53 44 71 MISG N/A TC 12
LMZ740>746-201400-
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 1022.1 1
WAUKEGAN HARBOR 51 51 330/ 10/ 12 1023.0 1
WILMETTE BUOY 52 40/ 14/ 19 1024.5R 2/ 3
CHICAGO BUOY 53 53 360/ 16/ 21 1022.3 2/ 4
HARRISON CRIB 53 360/ 18/ 19 N/A
NORTHERLY ISL 53 340/ 15/ 16 N/A
CALUMET HARBOR 54 350/ 10/ 15 1023.2
BURNS HARBOR 52 360/ 8/ 10 1023.4S
MICHIGAN CITY 51 20/ 11/ 12 1022.8R
ST. JOSEPH BUOY 49 10/ 8/ 10 1023.4R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 51 44 77 N13 30.25F TC 11
GALESBURG* SUNNY 50 45 81 N10 30.27S TC 10
MACOMB* SUNNY 52 46 82 N12 30.28S TC 11
JACKSONVILLE* MOSUNNY 52 45 77 N9 30.24F TC 11
PITTSFIELD* MOSUNNY 53 45 74 N9 30.26S TC 12
ILZ028>032-037-038-041>044-048-051>054-059>061-201400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 55 46 72 MISG 30.23R TC 13
BLOOMINGTON MOSUNNY 55 46 71 N17 30.23R TC 13
DECATUR CLOUDY 55 48 77 N10 30.21S TC 13
PEORIA SUNNY 54 45 71 NE8 30.25R TC 12
LACON* MOSUNNY 53 44 71 N7 30.25R TC 12
LINCOLN* MOSUNNY 56 48 75 N8 30.23S TC 13
SPRINGFIELD CLOUDY 54 47 77 N12 30.23R TC 12
TAYLORVILLE CLOUDY 54 48 82 N10 30.22S TC 12
ILZ033-039-045-046-055>057-062-063-201400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 55 50 83 N13 30.20R TC 13
DANVILLE* CLOUDY 57 52 82 N15 30.20R TC 14
RANTOUL* CLOUDY 56 49 79 N9 30.20S TC 13
MATTOON CLOUDY 56 51 84 N10 30.18R TC 13
PARIS* CLOUDY 58 51 78 N8 30.17S TC 14
ILZ079-100>102-201400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 55 48 76 N10 30.22R TC 13
BELLEVILLE CLOUDY 57 52 85 N12 30.18F TC 14
CAHOKIA* CLOUDY 56 50 80 NE8 30.20F TC 13
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 65 64 96 N9 30.12S TC 18
EFFINGHAM* CLOUDY 56 52 85 NW10 30.21R TC 14
MARION LGT RAIN 61 59 94 N9 30.17R TC 16
MT. VERNON CLOUDY 59 55 87 VRB5 30.18R TC 15
CENTRALIA* CLOUDY 58 51 78 N10 30.19R TC 15
SALEM* CLOUDY 59 54 83 MISG 30.20R TC 15
METROPOLIS* LGT RAIN 66 66 100 N5 30.13S TC 19
ILZ067-068-072-073-078-083-087-091-201400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE RAIN 58 57 97 N8 30.15R FOG TC 14
FLORA* CLOUDY 57 54 88 N10 30.19R TC 14
FAIRFIELD* DRIZZLE 59 56 91 NW6 30.16S TC 15
HARRISBURG* LGT RAIN 60 59 95 N9 30.17R TC 16
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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