870
ASUS43 KLOT 012101
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
400 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.
ILZ001-002-007-009-015-016-024-012200-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLOUDY 54 33 45 VRB7 30.03F TC 12
STERLING* SUNNY 53 33 46 VRB7 30.04F TC 12
SAVANNA* CLOUDY 52 27 38 W7 30.04F TC 11
ILZ003-004-008-010-011-017-018-012200-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 50 30 46 NW7 30.05F TC 10
FREEPORT* CLOUDY 51 32 48 CALM 30.05S TC 10
ROCHELLE* CLOUDY 48 29 47 W6 30.05F TC 9
DE KALB* CLOUDY 48 31 53 NW5 30.05S TC 9
ILZ005-006-012>014-019>023-012200-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 44 33 65 NE8 30.05R TC 7
CHICAGO-MIDWAY CLOUDY 46 34 62 E9 30.05S TC 8
AURORA CLOUDY 49 32 52 NW9 30.04S TC 9
JOLIET* CLOUDY 52 31 44 NW8 30.05S TC 11
WAUKEGAN PTSUNNY 43 30 60 NE9 30.05S TC 6
DUPAGE AIRPORT CLOUDY 48 30 49 VRB6 30.03S TC 9
KANKAKEE* CLOUDY 51 31 46 N3 30.04S TC 11
WHEELING CLOUDY 44 32 62 E9 30.07S TC 7
ROMEOVILLE* CLOUDY 48 37 66 E8G16 30.04S TC 9
LANSING* PTSUNNY 46 31 56 NE8 30.06S TC 8
NORTHERLY ISL* N/A 42 34 73 N8 N/A TC 6
LMZ740>746-012200-
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 1015.4R 2/ 4
WAUKEGAN HARBOR 40 48 10/ 8/ 12 1017.7S 2/ 4
HARRISON CRIB 41 30/ 10/ 10 N/A
NORTHERLY ISL 44 20/ 9/ 11 N/A
CALUMET HARBOR 43 20/ 6/ 8 1017.6S
BURNS HARBOR 43 40/ 6/ 7 1018.6S
MICHIGAN CITY 41 20/ 10/ 12 1017.9R
ST. JOSEPH BUOY 41 350/ 10/ 12 1018.2F 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-012200-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLOUDY 57 35 43 W8 30.01F TC 14
GALESBURG* PTSUNNY 54 35 48 CALM 30.04F TC 12
MACOMB* LGT RAIN 52 38 59 N13G28 30.05S TC 11
JACKSONVILLE* PTSUNNY 58 32 38 W5 30.02F TC 14
PITTSFIELD* CLOUDY 60 33 36 SW9 30.03F TC 16
ILZ028>032-037-038-041>044-048-051>054-059>061-012200-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLOUDY 52 32 47 MISG 30.04S TC 11
BLOOMINGTON CLOUDY 53 35 50 N8 30.04F TC 12
DECATUR CLOUDY 57 36 45 NW7 30.03F TC 14
PEORIA PTSUNNY 54 32 43 N6 30.03F TC 12
LACON* MOSUNNY 53 30 41 CALM 30.03F TC 12
LINCOLN* PTSUNNY 56 36 46 N8 30.03F TC 13
SPRINGFIELD PTSUNNY 59 33 37 NW5 30.02F TC 15
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-012200-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN PTSUNNY 54 35 48 NW10 30.03F TC 12
DANVILLE* CLOUDY 53 32 44 NW8 30.03F TC 12
RANTOUL* CLOUDY 54 32 43 NW10 30.02F TC 12
MATTOON LGT RAIN 54 38 54 W3G25 30.03F TC 12
PARIS* CLOUDY 54 36 50 W6 30.03F TC 12
ILZ079-100>102-012200-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON MOSUNNY 61 30 31 NW5 30.04F TC 16
BELLEVILLE MOSUNNY 62 35 36 NW10G17 30.02F TC 17
CAHOKIA* PTSUNNY 60 32 34 N10 30.03F TC 16
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-012200-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 62 34 35 NW12G22 30.03F TC 17
CAIRO* MOSUNNY 65 33 30 N10G17 30.02F TC 19
EFFINGHAM* PTSUNNY 56 37 49 NW5 30.06F TC 13
MARION MOSUNNY 63 34 34 NW9G18 30.04F TC 17
MT. VERNON PTSUNNY 60 35 39 VRB6 30.04F TC 16
CENTRALIA* PTSUNNY 61 34 36 N10 30.04F TC 16
SALEM* MOSUNNY 59 38 46 NW10 30.04F TC 15
METROPOLIS* MOSUNNY 64 35 34 NW13G18 30.02F TC 18
ILZ067-068-072-073-078-083-087-091-012200-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE SUNNY 60 33 36 NW13G23 30.03F TC 16
FLORA* MOSUNNY 59 37 44 NW10 30.05F TC 15
FAIRFIELD* PTSUNNY 59 35 40 NW9 30.03F TC 15
HARRISBURG* MOSUNNY 62 37 38 NW9 30.04F TC 17
ROBINSON* MOSUNNY 57 37 47 NW15 30.03F TC 14
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page