948
ASUS43 KLOT 012210
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
500 PM CDT FRI MAY 01 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.
ILZ001-002-007-009-015-016-024-012300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE PTSUNNY 54 32 43 SW5 30.01F TC 12
STERLING* MOSUNNY 53 30 41 N9 30.03F TC 12
SAVANNA* CLOUDY 53 28 38 NW5 30.03F TC 11
ILZ003-004-008-010-011-017-018-012300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 50 31 48 S5 30.05S TC 10
FREEPORT* CLOUDY 50 33 51 NW5 30.05R TC 10
ROCHELLE* CLOUDY 50 29 44 N9 30.04S TC 10
DE KALB* CLOUDY 47 32 55 NW6 30.05R TC 9
PERU* PTSUNNY 54 28 37 NW5G16 30.03F TC 12
ILZ005-006-012>014-019>023-012300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE LGT RAIN 44 32 62 N9 30.05S TC 7
CHICAGO-MIDWAY PTSUNNY 46 32 58 NE9 30.06R TC 8
AURORA PTSUNNY 50 32 50 NW6 30.04S TC 10
JOLIET* CLOUDY 49 36 60 CALM 30.05S TC 10
WAUKEGAN CLOUDY 41 29 62 E13 30.06R TC 5
DUPAGE AIRPORT CLOUDY 46 35 65 E10 30.04R TC 8
KANKAKEE* CLOUDY 50 35 55 NE7 30.05R TC 10
WHEELING CLOUDY 43 31 62 E7 30.07S TC 6
MORRIS* CLOUDY 50 32 50 NW3 30.04S TC 10
ROMEOVILLE* MOSUNNY 48 36 61 E6 30.05R TC 9
LANSING* PTSUNNY 44 32 60 NE8 30.06S TC 7
NORTHERLY ISL* N/A 43 34 70 N10 N/A TC 6
LMZ740>746-012300-
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 1017.4 2/ 4
WAUKEGAN HARBOR 41 48 10/ 8/ 12 1018.1 2/ 4
HARRISON CRIB 41 30/ 7/ 8 N/A
NORTHERLY ISL 44 40/ 7/ 11 N/A
CALUMET HARBOR 43 40/ 7/ 10 1017.7
BURNS HARBOR 42 30/ 5/ 6 1018.6S
MICHIGAN CITY 41 10/ 9/ 10 1017.8F
ST. JOSEPH BUOY 42 350/ 10/ 14 1018.4R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-012300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY LGT RAIN 53 38 56 SW8G23 30.01S TC 12
GALESBURG* CLOUDY 54 32 43 NW3 30.03S TC 12
MACOMB* MOSUNNY 55 37 50 N7 30.03F TC 13
JACKSONVILLE* CLOUDY 58 35 42 NW7 30.01F TC 14
PITTSFIELD* CLOUDY 57 36 45 SW5G16 30.02F TC 14
ILZ028>032-037-038-041>044-048-051>054-059>061-012300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 51 30 44 MISG 30.04S TC 11
BLOOMINGTON CLOUDY 54 35 48 N8 30.03F TC 12
DECATUR CLOUDY 56 35 45 NW10 30.02F TC 13
PEORIA CLOUDY 54 33 45 CALM 30.02F TC 12
LACON* MOSUNNY 54 30 39 NW8 30.02F TC 12
LINCOLN* PTSUNNY 57 36 44 N3 30.02F TC 14
SPRINGFIELD PTSUNNY 58 32 37 NW3 30.01F TC 14
TAYLORVILLE MOSUNNY 57 32 38 N3 30.01F TC 14
ILZ033-039-045-046-055>057-062-063-012300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN LGT RAIN 52 41 66 NW9G21 30.04R TC 11
DANVILLE* CLOUDY 54 33 44 NW7 30.03S TC 12
RANTOUL* CLOUDY 51 35 52 NW9 30.04R TC 11
MATTOON CLOUDY 55 36 48 N3 30.01F TC 13
PARIS* CLOUDY 53 35 49 NW3 30.02F TC 12
ILZ079-100>102-012300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON PTSUNNY 61 32 33 W13 30.02F TC 16
BELLEVILLE SUNNY 61 33 34 NW6 29.99F TC 16
CAHOKIA* MOSUNNY 63 31 30 NW8G21 30.00F TC 17
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-012300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 62 34 35 N12G20 30.01F TC 17
CAIRO* MOSUNNY 65 34 31 N7G17 30.00S TC 18
EFFINGHAM* MOSUNNY 57 36 45 W8 30.04F TC 14
MARION MOSUNNY 61 34 36 N14 30.02F TC 16
MT. VERNON MOSUNNY 58 35 42 VRB3 30.03F TC 14
CENTRALIA* MOSUNNY 59 35 39 NW8 30.02F TC 15
SALEM* MOSUNNY 60 38 43 N9 30.02F TC 16
METROPOLIS* MOSUNNY 63 35 35 NW9G21 30.01S TC 17
ILZ067-068-072-073-078-083-087-091-012300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 59 33 37 NW14 30.02F TC 15
FLORA* SUNNY 59 36 41 NW8 30.03S TC 15
FAIRFIELD* PTSUNNY 58 35 41 N7 30.02F TC 15
HARRISBURG* PTSUNNY 59 35 39 N12 30.02F TC 15
ROBINSON* SUNNY 57 37 47 NW14 30.01F TC 14
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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