597
ASUS43 KLOT 311703
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 AM CST SAT JAN 31 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.
ILZ001-002-007-009-015-016-024-311800-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE SUNNY 19 6 57 NW10 30.54S WCI 7 TC -7
STERLING* SUNNY 21 11 65 N14G20 30.51S WCI 8 TC -6
SAVANNA* SUNNY 19 8 61 N8 30.53S WCI 9 TC -7
ILZ003-004-008-010-011-017-018-311800-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD PTSUNNY 19 11 70 N16 30.48S WCI 4 TC -7
FREEPORT* CLOUDY 18 11 73 N10 30.52R WCI 6 TC -8
PERU* MOSUNNY 21 12 68 NW16 30.46F WCI 7 TC -6
ILZ005-006-012>014-019>023-311800-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 21 12 68 N15G23 30.39S WCI 8 TC -6
CHICAGO-MIDWAY FLURRIES 21 14 74 N16 30.40R WCI 7 TC -6
AURORA CLOUDY 19 14 81 N17 30.42R WCI 4 TC -7
JOLIET* CLOUDY 22 15 73 N9 30.43S WCI 12 TC -5
WAUKEGAN CLOUDY 20 12 71 N13G24 30.41R WCI 7 TC -7
DUPAGE AIRPORT CLOUDY 20 13 74 NW14 30.41S WCI 7 TC -7
WHEELING PTSUNNY 22 14 71 N16G25 30.42S WCI 8 TC -6
MORRIS* CLOUDY 19 13 75 N8G16 30.43S WCI 9 TC -7
ROMEOVILLE* CLOUDY 19 14 79 NW7G13 30.42R WCI 10 TC -7
LANSING* CLOUDY 20 14 75 N10 30.39S WCI 9 TC -6
NORTHERLY ISL* N/A 23 17 78 N20 N/A WCI 9 TC -5
LMZ740>746-311800-
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 23 340/ 21/ 23 N/A
NORTHERLY ISL 21 330/ 8/ 18 N/A
CALUMET HARBOR 21 310/ 7/ 10 1028.4R
BURNS HARBOR 22 50/ 9/ 12 1028.8R
MICHIGAN CITY 17 40/ 15/ 17 1029.7R
ILZ025>027-034>036-040-047-049-050-058-095>099-311800-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY SUNNY 9 0 67 NW13 30.56R WCI -7 TC -13
MACOMB* SUNNY 15 7 69 NW14 30.56F WCI 0 TC -9
ILZ028>032-037-038-041>044-048-051>054-059>061-311800-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC MIX PCPN 19 12 76 NW15 30.44S WCI 4 TC -7
BLOOMINGTON FLURRIES 15 10 80 NW17 30.44S WCI -1 TC -9
DECATUR CLOUDY 12 5 73 NW15 30.45F WCI -4 TC -11
PEORIA MOSUNNY 15 7 70 NW7G17 30.50S WCI 5 TC -9
LINCOLN* CLOUDY 15 3 59 NW9 30.49F WCI 3 TC -9
SPRINGFIELD SUNNY 12 3 67 NW13 30.51S WCI -3 TC -11
TAYLORVILLE NOT AVBL
ILZ033-039-045-046-055>057-062-063-311800-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN FLURRIES 15 9 76 NW18 30.41S WCI -2 TC -9
DANVILLE* CLOUDY 18 12 76 NW14 30.40S WCI 4 TC -8
MATTOON FLURRIES 12 6 77 NW20 30.42S WCI -6 TC -11
PARIS* LGT SNOW 16 8 72 NW7 30.41S WCI 6 TC -9
ILZ079-100>102-311800-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 12 0 57 NW15 30.54S WCI -4 TC -11
CAHOKIA* SUNNY 13 1 59 NW14 30.56F WCI -2 TC -11
SPARTA* SUNNY 13 1 58 NW13G18 30.54S WCI -2 TC -11
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-311800-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE SUNNY 14 1 57 NW12 30.52F WCI 0 TC -10
CAIRO* SUNNY 18 4 53 N17G24 30.53F WCI 3 TC -8
EFFINGHAM* CLOUDY 13 4 67 W12G17 30.48S WCI -1 TC -11
MARION SUNNY 18 3 53 NW16G23 30.50F WCI 3 TC -8
CENTRALIA* N/A N/A N/A N/A MISG N/A
SALEM* MOSUNNY 14 3 62 NW15 30.49R WCI -2 TC -10
ILZ067-068-072-073-078-083-087-091-311800-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE CLOUDY 13 3 64 NW16 30.43F WCI -3 TC -11
FLORA* SUNNY 12 3 67 NW15 30.47S WCI -4 TC -11
FAIRFIELD* CLOUDY 14 2 59 NW10G16 30.47S WCI 1 TC -10
HARRISBURG* SUNNY 15 2 56 NW17G24 30.49S WCI -1 TC -9
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
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