512
ASUS43 KLOT 270403
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM CST THU FEB 26 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.
ILZ001-002-007-009-015-016-024-270500-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE CLEAR 26 23 88 CALM 29.89R TC -3
STERLING* CLEAR 27 24 89 CALM 29.90S TC -3
SAVANNA* CLEAR 27 23 85 CALM 29.89S TC -3
ILZ003-004-008-010-011-017-018-270500-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD CLEAR 26 22 84 S3 29.90R TC -3
ILZ005-006-012>014-019>023-270500-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE CLEAR 36 26 67 SW6 29.87S WCI 31 TC 2
CHICAGO-MIDWAY CLEAR 36 29 75 SW10G21 29.89R WCI 28 TC 2
AURORA CLEAR 26 22 84 CALM 29.88R TC -3
JOLIET* CLEAR 31 28 88 CALM 29.91R TC -1
WAUKEGAN CLEAR 31 23 72 SW8 29.86R WCI 23 TC -1
DUPAGE AIRPORT CLEAR 29 26 89 S3 29.87S TC -2
WHEELING CLEAR 36 26 67 SW5 29.89R WCI 32 TC 2
MORRIS* CLEAR 35 31 84 CALM 29.90R TC 2
LANSING* CLEAR 31 27 84 SW5 29.91R WCI 27 TC 0
NORTHERLY ISL* N/A 39 29 67 S5 N/A TC 4
LMZ740>746-270500-
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)
HARRISON CRIB 40 200/ 12/ 12 N/A
NORTHERLY ISL 39 230/ 3/ 8 N/A
CALUMET HARBOR 38 190/ 5/ 8 1011.7
BURNS HARBOR 38 190/ 5/ 7 1012.9S
MICHIGAN CITY 37 230/ 6/ 7 1012.5R
ILZ025>027-034>036-040-047-049-050-058-095>099-270500-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY CLEAR 45 21 38 N5 29.92R TC 7
MACOMB* CLEAR 32 21 63 W8 29.94R WCI 25 TC 0
ILZ028>032-037-038-041>044-048-051>054-059>061-270500-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC CLEAR 29 26 89 SE5 29.91S WCI 23 TC -2
BLOOMINGTON CLEAR 31 30 96 SE9 29.90S WCI 23 TC -1
DECATUR CLEAR 41 36 82 CALM 29.90R TC 5
PEORIA CLEAR 32 31 96 CALM 29.91R TC 0
LACON* CLEAR 26 23 87 CALM 29.91R TC -3
LINCOLN* CLEAR 33 26 74 CALM 29.91R TC 1
SPRINGFIELD CLEAR 41 28 60 W8 29.91R TC 5
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-270500-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN CLEAR 31 31 100 SE7 29.91S WCI 24 TC -1
DANVILLE* MOCLDY 39 32 77 SE3 29.93S TC 4
MATTOON CLEAR 40 36 86 SE8 29.91R TC 4
PARIS* MOCLDY 38 34 83 CALM 29.93S TC 4
ILZ079-100>102-270500-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON CLEAR 45 36 70 VRB3 29.93R TC 7
BELLEVILLE CLEAR 40 35 84 CALM 29.92R TC 4
CAHOKIA* CLEAR 37 33 85 CALM 29.93R TC 3
SPARTA* CLEAR 44 37 77 CALM 29.94S TC 7
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-270500-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE NOT AVBL
CAIRO* CLEAR 47 42 82 CALM 29.92R TC 8
EFFINGHAM* CLEAR 38 36 92 CALM 29.94S TC 4
MARION CLEAR 38 33 82 CALM 29.93S TC 3
MT. VERNON CLEAR 34 32 92 CALM 29.93S TC 1
CENTRALIA* CLEAR 40 36 85 CALM 29.93S TC 5
SALEM* CLEAR 43 36 78 CALM 29.93R TC 6
ILZ067-068-072-073-078-083-087-091-270500-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLEAR 38 36 92 NE3 29.94S TC 3
FLORA* CLEAR 39 36 87 CALM 29.93S TC 4
FAIRFIELD* CLEAR 41 37 84 CALM 29.93S TC 5
HARRISBURG* CLEAR 40 37 87 E3 29.93F TC 5
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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