911
ASUS43 KLOT 190210
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
900 PM CDT MON MAY 18 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.
ILZ001-002-007-009-015-016-024-190300-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE MOCLDY 69 64 84 SE8 29.83R TC 21
STERLING* MOCLDY 71 66 84 SE5 29.86R TC 22
SAVANNA* CLOUDY 69 64 83 SE7 29.83S TC 20
ILZ003-004-008-010-011-017-018-190300-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLOUDY 72 61 68 S10 29.86F TC 22
FREEPORT* MOCLDY 70 65 84 S7 29.86S TC 21
ROCHELLE* PTCLDY 69 61 76 S10 29.87S TC 21
PERU* PTCLDY 70 64 83 S9 29.90R TC 21
ILZ005-006-012>014-019>023-190300-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLOUDY 71 63 75 S15G22 29.89R TC 22
CHICAGO-MIDWAY MOCLDY 69 64 84 S14G26 29.90R TC 21
AURORA MOCLDY 68 64 87 S10 29.88F TC 20
WAUKEGAN MOCLDY 71 64 78 SW14 29.85S TC 22
DUPAGE AIRPORT MOCLDY 68 64 87 S10 29.87F TC 20
WHEELING MOCLDY 71 64 78 S13 29.89R TC 22
MORRIS* MOCLDY 68 64 88 S7 29.90R TC 20
ROMEOVILLE* MOCLDY 68 66 94 S10 29.91F TC 20
LANSING* MOCLDY 67 63 87 S13 29.94R TC 19
NORTHERLY ISL* N/A 69 61 75 S16 N/A TC 21
LMZ740>746-190300-
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 49 1013.0 1/ 3
WAUKEGAN HARBOR 63 54 200/ 8/ 12 1011.9 1/ 3
WILMETTE BUOY 64 210/ 10/ 14 1013.3R 2/ 3
CHICAGO BUOY 63 54 190/ 10/ 12 1011.6 1/ 3
HARRISON CRIB 69 190/ 17/ 18 N/A
NORTHERLY ISL 71 200/ 7/ 18 N/A
CALUMET HARBOR 69 190/ 12/ 17 1013.1
BURNS HARBOR 69 180/ 12/ 15 1013.5R
MICHIGAN CITY 70 170/ 18/ 21 1011.9R
ST. JOSEPH BUOY 62 200/ 12/ 14 1014.3R 2/ 4
ILZ025>027-034>036-040-047-049-050-058-095>099-190300-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PITTSFIELD* CLEAR 67 64 88 S10 29.88S TC 20
ILZ028>032-037-038-041>044-048-051>054-059>061-190300-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MOCLDY 66 65 94 MISG 29.91R TC 19
BLOOMINGTON MOCLDY 64 64 100 S8 29.94F TC 18
DECATUR MOCLDY 67 60 78 W3 29.92R TC 19
PEORIA CLEAR 66 63 88 SE7 29.89 TC 19
LACON* PTCLDY 67 61 81 S9 29.90R TC 19
LINCOLN* PTCLDY 65 65 100 CALM 29.91F TC 19
SPRINGFIELD PTCLDY 66 60 81 S8 29.89F TC 19
TAYLORVILLE MOCLDY 66 61 82 S5 29.92R TC 19
ILZ033-039-045-046-055>057-062-063-190300-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOCLDY 66 62 87 W12 29.97R TC 19
RANTOUL* MOCLDY 65 63 93 SE7 29.94R TC 18
MATTOON MOCLDY 66 62 87 S8G23 29.88F TC 19
ILZ079-100>102-190300-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 64 63 94 SE7 29.92F TC 18
CAHOKIA* CLEAR 67 63 87 S12 29.92S TC 19
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-190300-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
EFFINGHAM* MOCLDY 64 64 100 SE10 29.93F TC 18
MT. VERNON MOCLDY 66 64 93 E9 30.01F TC 19
SALEM* MOCLDY 67 65 94 MISG 29.96F TC 19
METROPOLIS* CLOUDY 67 67 100 NE7G17 30.09R TC 20
ILZ067-068-072-073-078-083-087-091-190300-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 68 66 93 S9 30.03F TC 20
FAIRFIELD* MOCLDY 67 63 89 SE5 30.03F TC 19
ROBINSON* CLOUDY 66 66 100 S13 30.01F TC 19
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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