956
ASUS43 KLOT 210101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
800 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.
ILZ001-002-007-009-015-016-024-210200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 63 44 50 N8 30.18R TC 17
STERLING* CLEAR 61 40 45 E22 30.21R TC 16
SAVANNA* CLEAR 62 41 45 N8 30.21S TC 17
ILZ003-004-008-010-011-017-018-210200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOCLDY 55 35 47 E8G22 30.26R TC 13
FREEPORT* CLEAR 59 41 52 E14 30.24S TC 15
ROCHELLE* CLEAR 55 33 42 E16 30.25R TC 13
DE KALB* CLEAR 52 35 52 E15 30.27R TC 11
PERU* CLEAR 61 39 44 NE20 30.21R TC 16
ILZ005-006-012>014-019>023-210200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTCLDY 52 33 48 NE14 30.27R TC 11
CHICAGO-MIDWAY PTCLDY 53 34 48 NE17 30.27R TC 12
AURORA CLEAR 52 36 54 NE15 30.25R TC 11
JOLIET* CLEAR 55 38 51 NE12G18 30.25S TC 13
WAUKEGAN CLEAR 48 34 58 N9 30.27F TC 9
DUPAGE AIRPORT CLEAR 50 34 54 NE10 30.26R TC 10
KANKAKEE* PTCLDY 55 37 50 NE21G28 30.23R TC 13
WHEELING PTCLDY 50 33 52 NE8 30.29R TC 10
MORRIS* CLEAR 55 37 50 NE7 30.23S TC 13
ROMEOVILLE* CLEAR 54 37 54 NE12G20 30.26R TC 12
LANSING* PTCLDY 51 35 55 N14G22 30.26S TC 11
NORTHERLY ISL* N/A 50 35 56 N14 N/A TC 10
LMZ740>746-210200-
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 1022.7S 2/ 4
WAUKEGAN HARBOR 49 51 330/ 12/ 16 1024.1R 2/ 4
WILMETTE BUOY 50 40/ 17/ 21 1025.6R 3/ 4
CHICAGO BUOY 52 54 10/ 17/ 23 1023.4R 3/ 4
HARRISON CRIB 50 10/ 18/ 20 N/A
NORTHERLY ISL 51 340/ 10/ 15 N/A
CALUMET HARBOR 52 350/ 11/ 14 1024.8R
BURNS HARBOR 50 30/ 11/ 13 1024.7R
MICHIGAN CITY 50 20/ 18/ 20 1023.6R
ST. JOSEPH BUOY 50 10/ 16/ 19 1024.8R 4/ 5
ILZ025>027-034>036-040-047-049-050-058-095>099-210200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 62 50 64 NE6 30.15S TC 17
GALESBURG* CLEAR 63 46 53 NE8 30.18R TC 17
MACOMB* CLEAR 65 49 57 CALM 30.19R TC 18
JACKSONVILLE* PTCLDY 65 49 56 N6 30.14F TC 18
PITTSFIELD* MOCLDY 65 50 58 CALM 30.15F TC 19
ILZ028>032-037-038-041>044-048-051>054-059>061-210200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTCLDY 59 39 48 MISG 30.22R TC 15
BLOOMINGTON PTCLDY 59 41 51 NE18 30.21R TC 15
DECATUR MOCLDY 61 46 57 NE15 30.17R TC 16
PEORIA PTCLDY 64 44 48 E10 30.17R TC 18
LACON* PTCLDY 61 42 49 E16 30.20R TC 16
LINCOLN* MOCLDY 65 45 49 NE14 30.18R TC 18
SPRINGFIELD MOCLDY 67 50 54 E10 30.14R TC 19
TAYLORVILLE MOCLDY 64 52 63 NE5 30.14R TC 18
ILZ033-039-045-046-055>057-062-063-210200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTCLDY 62 44 51 NE16G26 30.17R TC 17
DANVILLE* PTCLDY 61 46 56 NE13 30.18R TC 16
RANTOUL* PTCLDY 60 41 49 NE18G24 30.19R TC 16
MATTOON MOCLDY 63 53 70 NE6 30.13R TC 17
PARIS* MOCLDY 63 53 67 E5 30.15R TC 17
ILZ079-100>102-210200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 64 54 68 VRB5 30.14S TC 18
CAHOKIA* CLOUDY 65 55 70 NE5 30.13R TC 18
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-210200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLOUDY 65 60 85 NE8G16 30.10R TC 18
EFFINGHAM* PTCLDY 63 58 84 CALM 30.15R TC 17
MARION CLOUDY 64 59 85 NE5 30.12S TC 18
MT. VERNON CLOUDY 64 58 80 NE7 30.12S TC 18
CENTRALIA* CLOUDY 65 56 72 CALM 30.12S TC 19
SALEM* CLOUDY 66 58 75 MISG 30.13R TC 19
METROPOLIS* CLOUDY 63 63 100 N6 30.10R TC 17
ILZ067-068-072-073-078-083-087-091-210200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 63 56 78 NE10 30.13R TC 17
FLORA* CLOUDY 64 57 77 NE9 30.13S TC 18
FAIRFIELD* CLOUDY 65 58 79 N3 30.12R TC 18
HARRISBURG* CLOUDY 64 61 89 N3 30.12R TC 18
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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