620
ASUS43 KLOT 202003
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
300 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.
ILZ001-002-007-009-015-016-024-202100-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 65 45 48 NE10 30.21F TC 18
STERLING* SUNNY 69 44 40 NE7 30.22F TC 21
SAVANNA* SUNNY 66 41 40 NE9 30.24F TC 19
ILZ003-004-008-010-011-017-018-202100-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 67 40 37 N10G17 30.24F TC 19
FREEPORT* MOSUNNY 65 43 45 NE7 30.25F TC 18
ROCHELLE* SUNNY 67 39 35 N3G18 30.22F TC 20
DE KALB* MOSUNNY 64 44 48 E9 30.24S TC 18
PERU* MOSUNNY 68 43 40 E8 30.22S TC 20
ILZ005-006-012>014-019>023-202100-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE MOSUNNY 57 38 48 NE16G28 30.26R TC 14
CHICAGO-MIDWAY PTSUNNY 58 38 47 N18 30.26S TC 14
AURORA MOSUNNY 63 45 51 E15G26 30.23S TC 17
JOLIET* PTSUNNY 64 45 50 NE10G21 30.25R TC 18
WAUKEGAN SUNNY 54 36 50 NE12G25 30.28S TC 12
DUPAGE AIRPORT PTSUNNY 60 44 55 NE18G24 30.25R TC 16
KANKAKEE* MOSUNNY 62 42 47 NE14G26 30.23F TC 17
WHEELING MOSUNNY 56 36 47 NE16G26 30.29R TC 13
ROMEOVILLE* MOSUNNY 61 45 55 NE15G23 30.25R TC 16
LANSING* MOSUNNY 57 40 53 NE15G22 30.26S TC 14
NORTHERLY ISL* N/A 55 41 59 NE10 N/A TC 13
LMZ740>746-202100-
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 1023.2R 2/ 3
WAUKEGAN HARBOR 49 52 350/ 14/ 17 1024.3R 2/ 4
WILMETTE BUOY 50 60/ 19/ 25 1025.9R 3/ 4
CHICAGO BUOY 51 55 20/ 19/ 25 1023.6R 3/ 4
HARRISON CRIB 50 20/ 22/ 24 N/A
NORTHERLY ISL 55 10/ 9/ 17 N/A
CALUMET HARBOR 53 340/ 15/ 20 1025.1
BURNS HARBOR 51 30/ 10/ 13 1024.7R
MICHIGAN CITY 51 20/ 17/ 20 1024.0R
ST. JOSEPH BUOY 51 360/ 17/ 21 1025.0R 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-202100-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 64 49 57 N8 30.20F TC 18
GALESBURG* SUNNY 66 44 45 N3 30.21F TC 19
MACOMB* SUNNY 66 49 55 NE8G16 30.22F TC 19
JACKSONVILLE* MOSUNNY 66 51 57 N9 30.18F TC 19
PITTSFIELD* MOSUNNY 66 50 57 NE8 30.20F TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-202100-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 67 45 45 MISG 30.21S TC 19
BLOOMINGTON MOSUNNY 69 47 45 N6G21 30.19F TC 21
DECATUR PTSUNNY 66 53 63 N14 30.18F TC 19
PEORIA SUNNY 66 47 50 NE10 30.19F TC 19
LACON* SUNNY 67 45 44 N8 30.20F TC 19
LINCOLN* MOSUNNY 70 49 48 NE7 30.18F TC 21
SPRINGFIELD MOSUNNY 69 50 50 N9 30.18F TC 21
TAYLORVILLE CLOUDY 64 55 72 N9 30.19F TC 18
ILZ033-039-045-046-055>057-062-063-202100-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 67 51 56 N9G18 30.18F TC 19
DANVILLE* CLOUDY 68 50 53 N12G17 30.18F TC 20
RANTOUL* PTSUNNY 69 46 45 NE9G16 30.18F TC 20
MATTOON CLOUDY 65 54 67 NE10 30.16S TC 18
PARIS* CLOUDY 65 53 63 NE8 30.17F TC 19
ILZ079-100>102-202100-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 64 54 68 N10 30.18F TC 18
BELLEVILLE CLOUDY 66 59 77 NW13 30.15F TC 19
CAHOKIA* PTSUNNY 65 54 67 NE10 30.16F TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-202100-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 64 61 88 N7 30.12R TC 18
EFFINGHAM* CLOUDY 65 58 78 N6 30.17F TC 18
MARION CLOUDY 63 57 82 N13 30.13F TC 17
CENTRALIA* CLOUDY 64 56 75 CALM 30.16F TC 18
SALEM* CLOUDY 65 59 79 MISG 30.16S TC 19
METROPOLIS* LGT RAIN 63 63 100 NW8 30.10S TC 17
ILZ067-068-072-073-078-083-087-091-202100-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE LGT RAIN 63 61 93 N9 30.13F TC 17
FLORA* CLOUDY 64 57 77 N8 30.15F TC 18
FAIRFIELD* CLOUDY 64 57 79 N9 30.13F TC 18
HARRISBURG* DRIZZLE 61 59 93 N7 30.13S TC 16
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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