Regional Weather Roundup
Issued by NWS
Issued by NWS
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ASUS43 KLOT 131807
RWRIL
ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
100 PM CDT SUN SEP 13 2026
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
REPORT WEATHER SUCH AS PRECIPITATION OR FOG.
ILZ001-002-007-009-015-016-024-131900-
NORTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
MOLINE LGT RAIN 65 49 56 N14G20 30.16F TC 18
6HR MIN TEMP: 56; 6HR MAX TEMP: 71; 6HR PCP: TRACE;
STERLING* CLOUDY 64 52 64 N12 30.17F TC 18
SAVANNA* LGT RAIN 58 53 81 N5 30.20R TC 15
$$
ILZ003-004-008-010-011-017-018-131900-
NORTH CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ROCKFORD RAIN 60 52 74 N10 30.19R TC 16
6HR MIN TEMP: 56; 6HR MAX TEMP: 69; 6HR PCP: 0.02;
FREEPORT* CLOUDY 59 57 94 NW5 30.20F TC 15
ROCHELLE* LGT RAIN 65 48 54 NW7 30.19R TC 18
DE KALB* CLOUDY 66 50 57 N8 30.18R TC 19
$$
ILZ005-006-012>014-019>023-131900-
NORTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHICAGO-OHARE PTSUNNY 72 48 42 NW10 30.11S TC 22
6HR MIN TEMP: 61; 6HR MAX TEMP: 75;
CHICAGO-MIDWAY PTSUNNY 73 51 46 N12 30.12R TC 23
6HR MIN TEMP: 64; 6HR MAX TEMP: 74;
AURORA CLOUDY 71 52 50 N12G20 30.14S TC 22
6HR MIN TEMP: 54; 6HR MAX TEMP: 73;
JOLIET* CLOUDY 76 49 38 N8 30.13R TC 25
WAUKEGAN PTSUNNY 66 49 54 N7G17 30.12S TC 19
6HR MIN TEMP: 58; 6HR MAX TEMP: 70;
DUPAGE AIRPORT PTSUNNY 71 50 47 NW12 30.13S TC 22
6HR MIN TEMP: 57; 6HR MAX TEMP: 73;
KANKAKEE* PTSUNNY 77 48 35 N14G20 30.11R TC 25
WHEELING MOSUNNY 71 51 49 N9 30.14R TC 22
6HR MIN TEMP: 60; 6HR MAX TEMP: 72;
LANSING* PTSUNNY 71 56 57 N9G17 30.12R TC 22
NORTHERLY ISL* N/A 70 53 54 N13 N/A TC 21
$$
LMZ740>746-131900-
SOUTHERN LAKE MICHIGAN
STATION/POSITION SKY/WX TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(F) (DEG/KT/KT) (MB) (MI) (FT/S)
WINTHROP HARBOR 66 70 310/ 8/ 12 1018.8S 3/ 6
WAUKEGAN HARBOR 66 67 330/ 8/ 14 1019.6F 2/ 6
WILMETTE BUOY 66 50/ 14/ 17 1022.7R 3/ 5
CHICAGO BUOY 67 70 1018.9R 3/ 5
HARRISON CRIB 66 350/ 19/ 21 N/A
NORTHERLY ISL 70 340/ 9/ 13 N/A
CALUMET HARBOR 68 320/ 12/ 18 1020.3
MICHIGAN CITY 70 340/ 16/ 17 1017.5
MICH CITY BUOY 69 69 340/ 16/ 19 N/A 3/ 5
ST. JOSEPH BUOY 68 67 350/ 14/ 17 1019.8R 4/ 5
$$
ILZ025>027-034>036-040-047-049-050-058-095>099-131900-
WEST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
QUINCY MOSUNNY 77 53 43 N15 30.11F TC 25
GALESBURG* PTSUNNY 70 53 56 N15 30.17F TC 21
MACOMB* MOSUNNY 75 55 48 N13 30.15F TC 24
JACKSONVILLE* SUNNY 79 57 47 N14 30.11S HX 80 TC 26
PITTSFIELD* SUNNY 80 56 44 N13G18 30.12S HX 80 TC 27
$$
ILZ028>032-037-038-041>044-048-051>054-059>061-131900-
CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
PONTIAC PTSUNNY 76 52 44 N13G18 30.14R TC 24
BLOOMINGTON SUNNY 78 54 43 N15G24 30.13R TC 26
DECATUR MOSUNNY 81 60 48 N13G22 30.08R HX 82 TC 27
PEORIA PTSUNNY 74 52 46 N12G21 30.15R TC 23
6HR MIN TEMP: 62; 6HR MAX TEMP: 76;
LACON* CLOUDY 73 49 43 N13 30.16R TC 23
SPRINGFIELD MOSUNNY 82 57 42 N12G20 30.10R HX 82 TC 28
6HR MIN TEMP: 64; 6HR MAX TEMP: 82;
TAYLORVILLE NOT AVBL
$$
ILZ033-039-045-046-055>057-062-063-131900-
EAST-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CHAMPAIGN MOSUNNY 81 61 50 N14G21 30.08R HX 82 TC 27
RANTOUL* SUNNY 80 56 43 NW15 30.08S HX 80 TC 27
MATTOON PTSUNNY 84 63 49 NW9 30.04S HX 85 TC 29
PARIS* PTSUNNY 83 65 54 NW9 30.05R HX 84 TC 28
$$
ILZ079-100>102-131900-
SOUTHWEST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
ALTON SUNNY 84 66 54 NW10 30.07F HX 86 TC 29
CAHOKIA* PTSUNNY 84 68 58 NW8 30.06S HX 87 TC 29
SPARTA* PTSUNNY 85 68 57 NW7 30.06S HX 88 TC 30
$$
ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-131900-
SOUTH-CENTRAL ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
CARBONDALE MOSUNNY 88 72 58 N5 30.03F HX 94 TC 31
CAIRO* MOSUNNY 93 74 53 CALM 30.01F HX 103 TC 34
EFFINGHAM* PTSUNNY 83 65 53 W7 30.06S HX 85 TC 28
MT. VERNON MOSUNNY 85 70 60 CALM 30.04F HX 89 TC 29
CENTRALIA* PTSUNNY 85 67 56 N8 30.05S HX 87 TC 29
SALEM* PTSUNNY 86 70 58 MISG 30.04F HX 90 TC 30
METROPOLIS* SUNNY 91 66 43 W5 30.01F HX 93 TC 33
$$
ILZ067-068-072-073-078-083-087-091-131900-
SOUTHEAST ILLINOIS
CITY SKY/WX TMP DP RH WIND PRES REMARKS
LAWRENCEVILLE MOSUNNY 87 68 52 W9 30.00F HX 90 TC 31
FLORA* PTSUNNY 86 68 54 W8 30.03F HX 89 TC 30
FAIRFIELD* MOSUNNY 88 66 48 SW7 30.01F HX 90 TC 31
HARRISBURG* SUNNY 89 71 56 N3 30.02F HX 94 TC 31
ROBINSON* MOSUNNY 86 70 58 N10 30.00F HX 90 TC 30
$$
ABBREVIATIONS USED IN REMARKS
TC - TEMPERATURE IN CELSIUS
WCI - WIND CHILL INDEX
HX - HEAT INDEX
VSB - VISIBILITY
$$