463
ASUS43 KLOT 210308
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM 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.
ILZ001-002-007-009-015-016-024-210400-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 58 43 57 E17G25 30.21R TC 14
STERLING* PTCLDY 53 35 50 E21 30.26R TC 12
SAVANNA* PTCLDY 55 38 52 E8 30.26R TC 13
ILZ003-004-008-010-011-017-018-210400-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 51 34 52 E6 30.29R TC 11
FREEPORT* PTCLDY 52 38 58 E12 30.29R TC 11
ROCHELLE* PTCLDY 49 32 50 E13 30.28R TC 10
DE KALB* PTCLDY 47 33 59 E8 30.27F TC 8
PERU* CLEAR 54 37 54 NE12 30.26R TC 12
ILZ005-006-012>014-019>023-210400-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 49 34 56 NE12 30.27S TC 9
CHICAGO-MIDWAY PTCLDY 51 31 46 NE13 30.27S TC 11
AURORA CLEAR 48 34 58 NE9 30.27R TC 9
JOLIET* PTCLDY 51 35 53 NE12 30.27S TC 11
WAUKEGAN CLEAR 46 35 65 N7 30.27F TC 8
DUPAGE AIRPORT CLEAR 47 33 58 NE7 30.27S TC 8
KANKAKEE* PTCLDY 50 36 58 NE17G24 30.26R TC 10
WHEELING PTCLDY 47 37 68 N7 30.29S TC 8
ROMEOVILLE* PTCLDY 50 32 50 NE15G24 30.27S TC 10
LANSING* PTCLDY 49 32 52 NE9 30.27F TC 10
NORTHERLY ISL* N/A 49 36 61 N12 N/A TC 9
LMZ740>746-210400-
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 1022.8 3/ 4
WAUKEGAN HARBOR 49 49 340/ 14/ 17 1023.8 2/ 5
WILMETTE BUOY 50 50/ 16/ 21 1025.8R 3/ 4
CHICAGO BUOY 51 54 10/ 17/ 21 1023.5 3/ 4
HARRISON CRIB 51 10/ 19/ 21 N/A
NORTHERLY ISL 49 350/ 13/ 15 N/A
CALUMET HARBOR 51 360/ 11/ 15 1025.1F
BURNS HARBOR 50 30/ 8/ 9 1025.1S
MICHIGAN CITY 50 30/ 16/ 18 1024.1R
ST. JOSEPH BUOY 52 20/ 14/ 17 1025.3R 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210400-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 57 54 89 NW3 30.18R TC 14
GALESBURG* CLEAR 60 44 57 E9 30.21R TC 15
MACOMB* CLEAR 58 49 72 CALM 30.21R TC 15
JACKSONVILLE* MOCLDY 61 49 62 E13 30.18R TC 16
PITTSFIELD* CLEAR 60 52 73 CALM 30.19R TC 16
ILZ028>032-037-038-041>044-048-051>054-059>061-210400-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 53 38 56 MISG 30.26R TC 12
BLOOMINGTON PTCLDY 53 39 59 NE15 30.25R TC 12
DECATUR MOCLDY 55 43 63 NE18 30.20R TC 13
PEORIA CLEAR 57 40 52 E15 30.23R TC 14
LACON* CLEAR 54 37 54 E9 30.24R TC 12
LINCOLN* PTCLDY 57 42 57 NE13G18 30.22R TC 14
SPRINGFIELD LGT RAIN 59 44 57 NE10 30.20R TC 15
TAYLORVILLE MOCLDY 61 45 55 NE13 30.20R TC 16
ILZ033-039-045-046-055>057-062-063-210400-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 55 39 54 N18G26 30.22R TC 13
DANVILLE* MOCLDY 55 40 58 N14G21 30.22R TC 13
RANTOUL* MOCLDY 53 37 53 NE16 30.23R TC 12
MATTOON CLOUDY 61 50 67 NE13 30.18R TC 16
PARIS* CLOUDY 59 45 60 NE7 30.19R TC 15
ILZ079-100>102-210400-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 63 55 77 VRB5 30.16R TC 17
BELLEVILLE CLOUDY 65 59 82 CALM 30.14R TC 18
CAHOKIA* CLOUDY 64 56 75 N3 30.15R TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210400-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 65 60 86 NE5 30.12S TC 18
EFFINGHAM* CLOUDY 60 58 94 CALM 30.19R TC 16
MARION CLOUDY 63 61 93 CALM 30.15R TC 17
MT. VERNON CLOUDY 62 57 83 N3 30.16R TC 17
CENTRALIA* CLOUDY 64 56 75 CALM 30.16R TC 18
SALEM* CLOUDY 64 58 80 MISG 30.16R TC 18
METROPOLIS* CLOUDY 64 64 100 N5 30.12R TC 18
ILZ067-068-072-073-078-083-087-091-210400-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 61 55 81 NE6 30.15R TC 16
FLORA* CLOUDY 63 57 82 NE5 30.17R TC 17
FAIRFIELD* MOCLDY 63 57 81 NE6 30.15R TC 17
HARRISBURG* CLOUDY 63 59 87 NE9 30.14R TC 17
ROBINSON* CLOUDY 61 55 82 N6 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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