118
ASUS43 KLOT 201412
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 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.
ILZ001-002-007-009-015-016-024-201500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 56 45 66 NE10G17 30.27S TC 13
STERLING* SUNNY 57 44 62 N13 30.28R TC 14
SAVANNA* MOSUNNY 56 44 64 N13 30.28F TC 13
ILZ003-004-008-010-011-017-018-201500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD MOSUNNY 56 42 59 N10 30.28R TC 13
FREEPORT* SUNNY 56 48 74 N12 30.30R TC 13
DE KALB* MOSUNNY 54 42 63 NE13 30.27R TC 12
PERU* MOSUNNY 57 43 58 N13G18 30.26R TC 14
ILZ005-006-012>014-019>023-201500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 56 43 61 NE13 30.24R TC 13
CHICAGO-MIDWAY PTSUNNY 57 43 59 NE16 30.25R TC 14
AURORA MOSUNNY 56 44 64 NE14 30.24R TC 13
JOLIET* CLOUDY 60 45 58 NE9 30.24R TC 16
WAUKEGAN MOSUNNY 53 44 71 NE8 30.26R TC 12
DUPAGE AIRPORT MOSUNNY 55 44 66 N15G21 30.24R TC 13
KANKAKEE* CLOUDY 57 44 60 NE13 30.23S TC 14
WHEELING PTSUNNY 55 43 63 NE10 30.27R TC 13
MORRIS* CLOUDY 57 43 58 NE7 30.24R TC 14
ROMEOVILLE* PTSUNNY 57 46 67 N12 30.24R TC 14
LANSING* CLOUDY 55 45 69 NE9 30.25R TC 13
NORTHERLY ISL* N/A 55 44 66 N10 N/A TC 13
LMZ740>746-201500-
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 1022.4 1/ 3
WAUKEGAN HARBOR 51 51 340/ 10/ 12 1023.6 1/ 2
WILMETTE BUOY 52 40/ 12/ 16 1025.1R 1/ 3
CHICAGO BUOY 53 53 20/ 14/ 17 1023.0 2/ 3
HARRISON CRIB 53 20/ 14/ 16 N/A
NORTHERLY ISL 54 10/ 9/ 16 N/A
CALUMET HARBOR 54 340/ 9/ 17 1023.9R
BURNS HARBOR 51 10/ 7/ 8 1024.4R
MICHIGAN CITY 51 360/ 6/ 8 1023.2R
ST. JOSEPH BUOY 49 10/ 8/ 10 1024.0R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-201500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 54 45 71 N12 30.26R TC 12
GALESBURG* MOSUNNY 54 46 73 NE14 30.28S TC 12
MACOMB* MOSUNNY 54 47 78 NE8 30.29S TC 12
JACKSONVILLE* MOSUNNY 55 46 74 N13 30.24S TC 13
ILZ028>032-037-038-041>044-048-051>054-059>061-201500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 56 47 71 MISG 30.24S TC 14
BLOOMINGTON CLOUDY 57 46 67 N15 30.24R TC 14
DECATUR PTSUNNY 56 49 77 N12 30.22R TC 13
PEORIA MOSUNNY 57 43 59 NE9G16 30.25S TC 14
LACON* MOSUNNY 56 42 60 N6 30.25S TC 13
LINCOLN* MOSUNNY 57 47 69 N10G17 30.24S TC 14
SPRINGFIELD PTSUNNY 56 48 74 N9 30.23S TC 13
TAYLORVILLE CLOUDY 55 50 82 N12 30.23S TC 13
ILZ033-039-045-046-055>057-062-063-201500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLOUDY 57 52 83 N12 30.20S TC 14
DANVILLE* CLOUDY 58 50 75 N15 30.20S TC 15
MATTOON CLOUDY 56 51 84 N14 30.18S TC 13
PARIS* PTSUNNY 59 52 78 N5 30.18R TC 15
ILZ079-100>102-201500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLOUDY 55 48 76 N10 30.22S TC 13
BELLEVILLE CLOUDY 57 53 84 N9 30.20R TC 14
CAHOKIA* CLOUDY 57 49 74 N14 30.22R TC 14
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-201500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE LGT RAIN 61 57 88 N8 30.16 TC 16
CAIRO* CLOUDY 64 62 95 N7 30.14R TC 18
EFFINGHAM* CLOUDY 57 53 85 NW10 30.21S TC 14
MARION LGT RAIN 61 57 88 N12 30.16F TC 16
MT. VERNON CLOUDY 59 55 87 N7 30.18S TC 15
CENTRALIA* CLOUDY 58 51 78 N12 30.19S TC 15
SALEM* CLOUDY 58 53 83 MISG 30.19S TC 15
ILZ067-068-072-073-078-083-087-091-201500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
FLORA* LGT RAIN 57 54 88 N9 30.19S TC 14
FAIRFIELD* LGT RAIN 58 55 87 N9 30.17S TC 15
HARRISBURG* LGT RAIN 61 59 93 N10 30.15F TC 16
ROBINSON* LGT RAIN 59 57 94 N6 30.16R TC 15
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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