291  
FOUS53 KLOT 160016  
PFMLOT  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
615 PM CST MON DEC 15 2025  
 
ILZ104-161000-  
CHICAGO O'HARE INTERNATIONAL AIRPORT-COOK IL  
41.99N 87.91W ELEV. 667 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 17 35 30 38 32  
TEMP 20 18 17 18 25 33 35 34 35 34 32 32 33 37 37 34 33 35 39 41  
DEWPT 14 14 14 15 18 25 29 31 32 33 32 30 30 30 30 30 32 34 37 39  
RH 77 84 88 88 74 72 78 89 89 96100 92 89 75 75 85 96 96 92 92  
WIND DIR SW SW S S S SW SW SW SW SW W W W W S S S S S S  
WIND SPD 4 3 3 5 8 14 14 13 13 11 10 8 5 4 6 9 12 16 17 18  
WIND GUST 25 27  
CLOUDS FW FW SC SC SC SC SC B1 OV B2 B1 SC FW SC SC B1 B2 OV OV OV  
POP 12HR 0 0 5 0 40  
QPF 12HR 0 0 0 0 0.02  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 14 11 10 15 22 26 24 26 26 23 24 26 23 26 30 32  
MIN CHILL 14 13 10 11 24 24 23 25 26 23 27  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 46 14 28 23 42 24 34 27 38  
TEMP 44 33 22 14 21 25 26 31 41 37 30 24 33 31 29 30 36 35  
DEWPT 40 29 14 7 7 10 15 22 28 30 25 20 21 22 22 25 27 29  
PWIND DIR SW W W S SW NW NW SW SE  
WIND CHAR BZ BZ GN GN GN LT LT LT GN  
AVG CLOUDS OV B2 B2 B1 SC B1 B2 B2 B1 B2 B1 SC SC SC B1 B1 B2 B2  
POP 12HR 90 20 5 10 10 10 10 20 10  
RAIN D C S  
SNOW S S S S  
 
 
ILZ003-161000-  
GREATER ROCKFORD AIRPORT-WINNEBAGO IL  
42.20N 89.11W ELEV. 745 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 12 34 26 36 29  
TEMP 15 13 13 15 21 31 34 33 34 32 28 29 30 34 35 32 30 34 37 39  
DEWPT 12 11 11 12 17 26 29 31 32 32 28 27 28 29 30 29 30 33 36 38  
RH 88 91 91 88 84 81 82 92 92100100 92 92 82 82 88100 96 96 96  
WIND DIR S SE S S S SW SW SW SW W W W W SW S S S S S S  
WIND SPD 2 2 3 5 8 13 13 14 13 11 9 6 4 4 8 10 14 18 19 18  
CLOUDS SC SC B1 B1 B1 SC SC B2 OV B2 SC SC SC SC SC B1 B2 OV OV OV  
POP 12HR 0 0 5 0 50  
QPF 12HR 0 0 0 0 0.03  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
OBVIS PF PF PF  
WIND CHILL 6 6 12 21 25 23 25 23 20 21 28 24 20 23 27 29  
MIN CHILL 12 11 6 6 23 23 20 22 24 20 25  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 43 8 27 19 40 18 32 23 36  
TEMP 40 30 18 10 18 23 24 29 39 35 27 19 30 29 26 27 35 33  
DEWPT 35 23 10 4 6 10 15 21 28 29 21 16 18 18 20 22 26 26  
PWIND DIR SW NW W S SW NW N SE SE  
WIND CHAR BZ BZ GN GN GN LT LT LT GN  
AVG CLOUDS B2 B1 B2 B1 SC B1 B2 B1 B1 B2 B1 SC SC SC B1 B1 B2 B2  
POP 12HR 80 10 5 10 10 10 5 10 5  
RAIN D S  
SNOW S  
 
 
ILZ104-161000-  
CHICAGO MIDWAY AIRPORT-COOK IL  
41.78N 87.76W ELEV. 612 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 19 36 31 38 32  
TEMP 22 20 19 19 25 34 35 35 36 35 32 33 34 38 38 35 33 36 40 41  
DEWPT 15 15 15 15 18 25 29 31 32 33 32 31 31 30 30 31 32 34 37 40  
RH 74 81 84 84 74 69 78 85 85 92100 92 89 73 73 85 96 92 89 96  
WIND DIR SW SW S S S SW SW SW SW SW W W W W S S S S S S  
WIND SPD 5 3 4 5 8 14 14 14 14 13 10 9 6 5 9 10 13 14 17 18  
WIND GUST 26  
CLOUDS FW FW SC SC SC SC SC B1 B2 B2 B1 SC FW SC SC B1 B2 OV OV OV  
POP 12HR 0 0 5 0 40  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 14 14 12 11 16 24 26 25 27 27 24 26 28 31 27 24 27 31 32  
MIN CHILL 15 14 11 12 25 26 24 26 27 24 28  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 15 28 23 42 25 35 28 38  
TEMP 46 35 24 15 22 25 27 31 41 38 33 26 34 32 31 31 37 36  
DEWPT 41 29 15 8 7 11 16 22 28 30 27 21 22 24 24 25 28 30  
PWIND DIR SW W W S SW W NW SW SE  
WIND CHAR BZ BZ GN GN GN GN GN LT GN  
AVG CLOUDS OV B2 B2 B1 SC B1 B2 B2 B1 B2 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 90 20 0 10 10 10 5 10 10  
RAIN D C S  
SNOW S S  
 
 
ILZ021-161000-  
MORRIS-GRUNDY IL  
41.43N 88.42W ELEV. 569 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 35 29 38 31  
TEMP 18 15 14 14 23 33 35 33 34 34 31 30 33 37 37 33 32 36 39 42  
DEWPT 14 13 12 12 18 28 31 32 33 34 31 29 32 33 33 32 32 36 38 41  
RH 84 92 92 92 81 82 85 96 96100100 96 96 85 85 96100100 96 96  
WIND DIR S S S S S SW SW SW SW SW W W W W S S S S S S  
WIND SPD 3 2 3 4 6 12 13 11 11 11 9 6 4 4 5 8 11 14 17 18  
WIND GUST 28  
CLOUDS SC FW SC SC SC FW FW B1 B2 B2 B1 SC FW SC SC B1 B1 B2 OV OV  
POP 12HR 0 0 5 0 40  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 12 8 6 14 24 26 24 25 26 23 24 26 23 27 30 33  
MIN CHILL 14 12 6 7 24 23 23 25 26 23 28  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 13 28 22 44 23 36 26 40  
TEMP 46 34 22 14 23 26 28 31 43 37 32 24 35 32 30 30 38 37  
DEWPT 42 29 14 7 9 12 17 21 30 32 28 20 23 22 24 25 30 31  
PWIND DIR SW W W S SW NW N E SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS OV B2 B2 B1 SC B1 B2 B1 B1 B2 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 90 10 0 10 10 10 5 10 10  
RAIN D C  
SNOW S  
 
 
ILZ006-161000-  
WAUKEGAN-LAKE IL  
42.42N 87.87W ELEV. 745 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 15 35 30 37 31  
TEMP 18 16 15 17 24 33 35 35 36 35 32 32 33 36 36 33 33 36 39 40  
DEWPT 11 11 11 14 18 26 28 31 32 33 32 29 29 29 30 29 31 33 36 38  
RH 73 80 84 88 77 75 75 85 85 92100 88 85 75 79 85 92 89 89 92  
WIND DIR SW W SW S SW SW SW SW SW W W W W W S S S S S S  
WIND SPD 4 3 4 6 10 16 16 13 13 11 10 10 8 6 8 9 12 14 17 17  
WIND GUST 27 24 24 25 27 27  
CLOUDS FW SC SC SC SC SC SC B2 OV B2 B1 SC SC SC SC B1 B2 B2 OV OV  
POP 12HR 0 0 5 0 40  
QPF 12HR 0 0 0 0 0.01  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 10 10 8 8 14 22 25 25 27 27 23 24 26 30 30 25 23 26 30 31  
MIN CHILL 12 10 7 8 24 24 23 25 25 23 28  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 45 12 28 21 41 21 32 25 37  
TEMP 42 33 22 13 21 24 26 30 40 35 29 22 31 28 28 30 36 33  
DEWPT 39 28 15 8 8 11 16 22 28 29 23 18 20 21 22 24 28 28  
PWIND DIR SW NW W S SW NW NW SW S  
WIND CHAR BZ BZ GN GN GN LT LT LT GN  
AVG CLOUDS OV B2 B2 B1 SC B1 B2 B2 B1 B2 B1 SC SC SC B1 B1 B2 B2  
POP 12HR 90 20 5 10 20 10 10 20 10  
RAIN D C S  
SNOW S S S S S  
 
 
ILZ021-161000-  
PONTIAC-LIVINGSTON IL  
40.92N 88.63W ELEV. 648 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 36 27 38 29  
TEMP 17 14 14 16 24 34 36 32 33 32 29 29 32 36 36 31 30 35 39 40  
DEWPT 13 12 11 12 20 29 31 32 33 32 29 29 31 35 35 31 30 35 38 40  
RH 84 92 88 84 84 82 82100100100100100 96 96 96100100100 96100  
WIND DIR S S S S S SW SW S SW SW W W W W S SE S S S S  
WIND SPD 4 4 4 6 8 12 13 11 12 12 9 5 4 4 5 9 13 17 19 20  
CLOUDS FW FW FW FW FW FW FW B1 B2 B2 B2 SC FW SC SC B1 B1 B2 OV OV  
POP 12HR 0 0 5 0 40  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 9 7 6 6 15 24 27 23 24 23 21 22 23 20 24 29 31  
MIN CHILL 12 7 6 7 22 21 21 23 23 20 25  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 12 29 22 44 23 37 26 40  
TEMP 44 32 19 13 22 25 27 31 42 36 31 24 35 31 29 28 37 36  
DEWPT 42 28 12 6 10 13 18 21 32 33 28 21 25 24 24 25 31 31  
PWIND DIR SW W W S SW W N E SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS B2 B1 B1 B1 SC SC B1 B1 B1 B1 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 90 10 0 10 10 10 5 10 10  
RAIN D C  
SNOW S  
 
 
INZ002-161000-  
VALPARAISO-PORTER IN  
41.45N 87.00W ELEV. 770 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 34 29 37 30  
TEMP 17 15 14 15 21 31 34 32 33 33 31 32 33 37 37 34 31 34 38 40  
DEWPT 12 12 11 10 16 25 28 28 30 32 31 30 32 32 31 30 31 33 36 39  
RH 80 88 88 80 81 78 78 85 89 96100 92 96 82 79 85100 96 92 96  
WIND DIR SW S S S S S S SW SW SW SW W W W S S S S S S  
WIND SPD 5 3 4 5 8 13 14 12 12 11 10 8 6 5 6 8 11 14 17 17  
WIND GUST 24 26 27  
CLOUDS FW FW FW SC FW FW FW SC B2 B2 B2 SC SC FW SC SC B2 B2 B2 OV  
POP 12HR 0 0 5 0 30  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 9 9 6 5 12 21 24 22 23 24 23 24 26 31 27 22 24 28 31  
MIN CHILL 10 9 5 6 22 22 23 25 27 22 25  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 16 26 21 42 26 35 26 38  
TEMP 45 36 25 17 23 24 25 29 41 37 33 27 35 31 29 29 37 35  
DEWPT 43 31 18 10 9 11 15 20 28 30 29 24 26 26 24 23 28 29  
PWIND DIR SW W W S SW W NW SE SE  
WIND CHAR BZ BZ GN GN GN LT LT LT GN  
AVG CLOUDS OV B2 B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 SC SC B1 B2 B2 B2  
POP 12HR 90 30 0 10 20 10 10 10 10  
RAIN D D C S  
SNOW S C S  
 
 
ILZ005-161000-  
WOODSTOCK-MCHENRY IL  
42.31N 88.44W ELEV. 950 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 11 34 27 35 28  
TEMP 14 11 11 14 21 31 34 32 33 32 29 29 29 33 34 30 29 33 36 38  
DEWPT 11 9 9 12 18 26 29 31 33 32 29 28 29 30 31 29 29 33 36 37  
RH 88 91 91 92 88 81 82 96100100100 96100 89 89 96100100100 96  
WIND DIR SW S S S S SW SW SW SW W W W W W S S S S S S  
WIND SPD 3 2 3 5 8 14 14 14 14 11 10 8 5 4 6 10 13 17 18 18  
WIND GUST 25 28  
CLOUDS FW SC B1 B1 SC SC SC B2 OV B2 B1 SC SC SC SC B1 B2 OV OV OV  
POP 12HR 0 0 5 0 50  
QPF 12HR 0 0 0 0 0.02  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
OBVIS PF PF PF  
WIND CHILL 5 5 11 20 23 22 23 23 20 21 23 28 21 19 22 26 28  
MIN CHILL 11 9 5 6 22 21 20 21 21 18 23  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 43 9 25 19 39 18 31 22 35  
TEMP 40 30 18 9 17 22 23 29 38 33 26 18 29 27 25 27 34 32  
DEWPT 38 27 12 4 8 10 15 21 29 29 22 16 19 19 20 23 27 28  
PWIND DIR SW NW W S SW NW NW S SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS OV B2 B2 B1 SC B1 B2 B2 B1 B2 B1 SC SC SC B1 B1 B2 B2  
POP 12HR 90 20 5 10 20 10 10 20 10  
RAIN D C  
SNOW C S S S S  
 
 
ILZ008-161000-  
OREGON-OGLE IL  
42.01N 89.33W ELEV. 697 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 13 35 26 37 29  
TEMP 16 14 13 15 21 31 34 34 33 32 28 29 30 34 35 32 30 34 37 38  
DEWPT 14 14 13 13 18 26 30 32 32 32 28 28 28 30 31 29 30 34 36 38  
RH 92100100 92 88 81 85 92 96100100 96 92 85 85 88100100 96100  
WIND DIR S S SE S S SW SW SW SW W W W W SW S S S S S S  
WIND SPD 2 2 3 4 8 12 12 12 11 9 6 5 3 4 6 10 12 16 17 16  
CLOUDS SC SC SC SC SC SC SC OV B2 B2 SC SC FW SC SC B1 B2 B2 OV OV  
POP 12HR 0 0 5 0 50  
QPF 12HR 0 0 0 0 0.04  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C L  
OBVIS PF PF PF  
WIND CHILL 7 7 12 21 25 25 25 24 21 23 24 20 24 28 29  
MIN CHILL 13 12 6 7 23 23 21 23 23 20 25  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 43 9 27 19 41 19 33 23 37  
TEMP 39 29 17 10 19 24 25 30 40 34 26 20 31 29 26 27 35 34  
DEWPT 36 23 10 4 7 11 16 22 29 30 22 17 19 19 21 23 26 27  
PWIND DIR SW NW W S SW NW N SE SE  
WIND CHAR BZ BZ LT GN GN LT LT LT LT  
AVG CLOUDS B2 B1 B1 B1 SC B1 B2 B1 B1 B1 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 70 10 5 10 10 10 5 10 5  
RAIN L C  
SNOW C  
 
 
ILZ011-161000-  
SYCAMORE-DEKALB IL  
41.98N 88.69W ELEV. 863 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 12 34 27 35 29  
TEMP 15 13 12 14 21 31 33 32 33 33 29 29 30 34 34 31 30 33 36 38  
DEWPT 12 12 12 13 18 26 30 31 33 33 29 28 29 31 31 29 30 33 36 38  
RH 88 96100 96 88 81 89 96100100100 96 96 89 89 92100100100100  
WIND DIR S S S S S SW SW SW SW W W W W W S S S S S S  
WIND SPD 3 3 3 5 8 13 13 13 13 11 10 8 5 4 5 10 13 17 18 18  
WIND GUST 28 28  
CLOUDS SC SC B1 B1 B1 SC SC B2 OV B2 B1 SC SC SC SC B1 B2 OV OV OV  
POP 12HR 0 0 5 0 60  
QPF 12HR 0 0 0 0 0.03  
SNOW 12HR 00-00 00-00 00-00  
RAIN L L D  
OBVIS PF PF PF  
WIND CHILL 9 5 5 11 20 24 22 24 24 20 21 24 28 22 20 22 26 29  
MIN CHILL 11 9 5 5 22 22 20 21 22 20 23  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 44 10 26 20 40 19 32 24 37  
TEMP 41 30 18 10 19 22 25 30 39 34 27 20 31 28 26 27 35 33  
DEWPT 38 26 11 4 7 11 16 21 29 30 23 17 20 20 21 23 27 28  
PWIND DIR SW NW W S SW NW N SE SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS B2 B1 B2 B1 SC B1 B2 B2 B1 B2 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 80 10 5 10 10 10 5 20 10  
RAIN D C  
SNOW S S  
 
 
ILZ010-161000-  
DIXON-LEE IL  
41.85N 89.45W ELEV. 697 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 13 35 26 37 29  
TEMP 16 14 14 15 21 31 34 34 33 32 28 28 29 34 34 31 30 34 37 38  
DEWPT 15 14 13 13 19 26 31 33 33 32 28 28 29 32 32 30 30 34 37 38  
RH 96100 96 92 92 81 89 96100100100100100 92 92 96100100100100  
WIND DIR S S SE S S SW SW SW SW W W W W SW S S S S S S  
WIND SPD 2 2 3 4 6 12 12 11 10 8 6 5 3 3 5 9 12 14 14 14  
WIND GUST 25  
CLOUDS SC SC SC SC SC SC SC B2 B2 B2 SC SC SC SC SC B1 B2 OV OV OV  
POP 12HR 0 0 5 0 50  
QPF 12HR 0 0 0 0 0.04  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C L  
OBVIS PF PF PF  
WIND CHILL 8 13 21 25 26 25 24 20 22 23 20 24 28 29  
MIN CHILL 15 14 8 8 24 24 20 22 23 20 25  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 43 8 28 20 41 20 33 24 38  
TEMP 39 28 16 9 19 24 26 31 40 35 27 20 31 29 27 27 35 34  
DEWPT 36 24 10 4 8 12 18 23 31 31 23 18 20 21 22 24 28 28  
PWIND DIR W NW W S SW NW N E SE  
WIND CHAR BZ BZ LT GN GN LT LT LT LT  
AVG CLOUDS B2 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 70 5 0 10 10 10 5 10 5  
RAIN L S  
SNOW S  
 
 
ILZ012-161000-  
GENEVA-KANE IL  
41.88N 88.31W ELEV. 727 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 35 28 37 30  
TEMP 17 15 14 15 22 32 35 33 33 33 30 30 31 35 36 32 31 34 37 39  
DEWPT 12 13 13 11 17 25 30 32 33 33 30 29 30 31 32 30 31 34 37 39  
RH 80 92 96 84 81 75 82 96100100100 96 96 85 85 92100100100100  
WIND DIR SW S S S S SW SW SW SW W W W W W S S S S S S  
WIND SPD 3 2 3 5 8 13 14 14 14 12 10 8 5 4 6 10 13 17 18 18  
WIND GUST 25 28 29  
CLOUDS SC SC B1 B1 SC SC SC OV OV B2 B1 SC FW SC SC B1 B2 OV OV OV  
POP 12HR 0 0 5 0 50  
QPF 12HR 0 0 0 0 0.02  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
OBVIS PF PF PF  
WIND CHILL 11 8 6 12 22 25 23 23 24 21 22 25 30 24 21 23 27 30  
MIN CHILL 12 11 6 6 22 21 21 22 23 21 24  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 45 12 27 21 41 21 34 25 38  
TEMP 42 32 20 12 20 24 25 30 40 36 29 22 32 30 27 28 36 34  
DEWPT 40 28 13 6 8 11 15 21 29 31 24 18 21 21 21 24 28 29  
PWIND DIR SW NW W S SW NW NW SE SE  
WIND CHAR BZ BZ GN GN GN LT LT LT GN  
AVG CLOUDS B2 B2 B2 B1 SC B1 B2 B2 B1 B2 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 90 20 5 10 10 10 5 20 10  
RAIN D C  
SNOW S S S  
 
 
ILZ020-161000-  
YORKVILLE-KENDALL IL  
41.64N 88.45W ELEV. 618 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 13 35 28 37 31  
TEMP 17 14 13 14 21 33 35 32 33 33 30 29 31 35 36 31 31 34 38 40  
DEWPT 14 13 12 11 17 26 30 31 32 33 30 28 30 32 32 30 31 34 38 39  
RH 88 96 96 88 84 75 82 96 96100100 96 96 89 85 96100100100 96  
WIND DIR S S S S S SW SW SW SW SW W W W W S S S S S S  
WIND SPD 3 2 3 4 6 12 13 12 12 11 10 6 4 4 5 9 12 16 18 18  
WIND GUST 28 28  
CLOUDS SC SC SC SC SC SC SC B1 B2 B2 B1 SC FW SC SC B1 B2 OV OV OV  
POP 12HR 0 0 5 0 50  
QPF 12HR 0 0 0 0 0.02  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
OBVIS PF PF PF  
WIND CHILL 11 7 6 12 23 26 23 24 24 21 22 24 21 24 28 30  
MIN CHILL 13 11 6 6 22 21 21 23 24 21 26  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 46 12 28 22 42 22 35 25 39  
TEMP 43 32 20 13 21 24 26 30 41 36 29 23 33 30 28 28 36 35  
DEWPT 41 27 13 6 8 11 16 21 30 31 26 19 22 21 22 24 29 30  
PWIND DIR SW W W S SW NW N E SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS OV B2 B2 B1 SC B1 B2 B2 B1 B2 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 80 10 0 10 10 10 5 10 10  
RAIN D C  
SNOW S S  
 
 
ILZ013-161000-  
WHEATON-DUPAGE IL  
41.86N 88.11W ELEV. 752 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 16 35 30 38 31  
TEMP 19 17 16 17 24 32 35 34 34 34 31 31 32 36 37 33 32 35 39 40  
DEWPT 14 14 14 13 18 25 29 31 32 33 31 30 30 30 31 30 32 34 37 40  
RH 80 88 92 84 77 75 78 89 92 96100 96 92 79 79 89100 96 92100  
WIND DIR SW SW S S S SW SW SW SW SW W W W W S S S S S S  
WIND SPD 4 3 4 5 8 13 14 14 14 12 10 8 5 5 6 9 12 16 17 18  
WIND GUST 24 26 25 25 26 28 29  
CLOUDS SC SC SC SC SC SC SC B2 OV B2 B1 SC FW SC SC B1 B2 B2 OV OV  
POP 12HR 0 0 5 0 50  
QPF 12HR 0 0 0 0 0.02  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 13 10 9 15 22 26 24 25 25 22 23 31 25 22 25 29 31  
MIN CHILL 13 12 9 9 23 23 22 24 25 22 26  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 46 13 27 22 42 23 34 27 38  
TEMP 43 33 21 14 21 24 26 31 41 37 30 24 33 31 29 29 36 35  
DEWPT 40 28 13 6 7 10 15 22 29 30 25 20 21 21 22 25 28 29  
PWIND DIR SW W W S SW NW NW S SE  
WIND CHAR BZ BZ GN GN GN LT LT LT GN  
AVG CLOUDS OV B2 B2 B1 SC B1 B2 B2 B1 B2 B1 SC SC SC B1 B1 B2 B2  
POP 12HR 90 20 5 10 10 10 5 20 10  
RAIN D C  
SNOW S S S S  
 
 
ILZ019-161000-  
OTTAWA-LASALLE IL  
41.35N 88.84W ELEV. 494 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 15 35 29 37 31  
TEMP 19 16 15 16 23 33 35 33 34 33 30 30 31 35 36 32 31 35 38 41  
DEWPT 15 13 11 12 19 28 31 31 32 33 30 28 30 32 32 30 31 35 38 40  
RH 84 88 84 84 84 82 85 92 92100100 92 96 89 85 92100100100 96  
WIND DIR S S S S S SW SW SW SW SW W W W W S SE S S S S  
WIND SPD 3 3 3 4 6 12 12 11 11 11 9 6 4 3 5 9 12 16 18 18  
WIND GUST 23  
CLOUDS SC FW SC SC SC FW FW B1 B2 B2 B1 SC FW SC SC B1 B2 B2 OV OV  
POP 12HR 0 0 5 0 50  
QPF 12HR 0 0 0 0 0.02  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
OBVIS PF PF PF  
WIND CHILL 13 9 8 15 23 26 25 25 25 22 23 24 22 25 29 32  
MIN CHILL 15 11 8 8 24 23 22 24 24 22 26  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 46 13 29 23 43 23 35 27 39  
TEMP 42 31 19 13 21 25 27 31 41 36 31 24 33 31 29 29 36 35  
DEWPT 39 25 12 5 8 12 17 21 29 31 26 20 22 21 23 24 29 29  
PWIND DIR SW W W S SW NW N E SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS B2 B1 B2 B1 SC B1 B1 B1 B1 B1 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 80 10 0 10 10 10 5 10 10  
RAIN D C  
SNOW S  
 
 
ILZ106-161000-  
JOLIET-WILL IL  
41.53N 88.12W ELEV. 655 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 15 36 29 38 32  
TEMP 19 17 15 16 23 33 35 34 34 34 31 31 32 36 37 33 32 35 38 41  
DEWPT 15 14 13 13 19 27 31 32 33 34 31 30 32 32 33 32 32 35 38 41  
RH 84 88 92 88 84 78 85 92 96100100 96100 85 85 96100100100100  
WIND DIR S S S S S SW SW SW SW SW W W W W S S S S S S  
WIND SPD 3 3 3 5 8 13 13 12 12 11 9 6 4 4 5 9 12 14 17 18  
WIND GUST 24 28 29  
CLOUDS SC FW SC SC SC FW FW B1 B2 B2 B1 SC FW SC SC B1 B1 OV OV OV  
POP 12HR 0 0 5 0 40  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 13 9 8 14 24 26 25 25 25 23 24 26 23 26 29 32  
MIN CHILL 14 12 8 8 24 24 22 24 26 23 26  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 14 28 23 43 24 36 27 40  
TEMP 45 34 21 14 22 25 26 31 42 37 31 24 34 32 30 29 37 36  
DEWPT 42 30 15 8 9 12 17 22 30 32 28 21 23 23 24 25 30 31  
PWIND DIR SW W W S SW NW NW E SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS OV B2 B2 B1 SC B1 B2 B1 B1 B2 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 90 10 0 10 10 10 5 10 10  
RAIN D C  
SNOW S S  
 
 
ILZ023-161000-  
KANKAKEE-KANKAKEE IL  
41.12N 87.86W ELEV. 630 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 35 29 38 30  
TEMP 18 15 14 15 23 33 35 32 32 33 30 30 32 36 37 32 31 35 38 40  
DEWPT 13 12 11 12 19 27 30 31 32 33 30 30 32 33 33 31 31 35 37 40  
RH 80 88 88 88 84 78 82 96100100100100100 89 85 96100100 96100  
WIND DIR S S S S S SW SW SW SW SW W W W W S S S S S S  
WIND SPD 4 3 3 4 8 12 13 9 10 9 6 5 3 3 4 5 10 12 14 16  
WIND GUST 26  
CLOUDS FW FW FW SC SC FW FW SC B2 B2 B2 SC SC SC SC SC B1 B2 OV OV  
POP 12HR 0 0 5 0 40  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 11 8 7 14 23 25 24 24 25 23 26 22 26 29 32  
MIN CHILL 13 11 7 7 24 23 23 25 26 22 26  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 14 27 22 43 24 36 26 39  
TEMP 45 34 21 14 22 25 26 31 42 36 32 24 35 31 29 29 37 36  
DEWPT 44 30 15 8 9 12 17 21 30 32 29 22 25 24 24 24 30 31  
PWIND DIR SW W W S SW W N E SE  
WIND CHAR BZ GN LT GN GN LT LT LT LT  
AVG CLOUDS OV B2 B2 B1 SC SC B2 B1 B1 B1 B1 SC SC SC B1 B2 B2 B2  
POP 12HR 90 10 0 10 10 10 5 10 10  
RAIN D C  
SNOW S  
 
 
ILZ033-161000-  
WATSEKA-IROQUOIS IL  
40.78N 87.73W ELEV. 636 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 35 28 37 29  
TEMP 17 15 14 15 23 33 35 31 31 32 30 30 32 36 35 31 30 34 38 40  
DEWPT 12 11 10 11 19 27 30 28 30 31 30 29 31 33 33 30 30 34 37 39  
RH 80 84 84 84 84 78 82 88 96 96100 96 96 89 92 96100100 96 96  
WIND DIR S S S S S SW S S SW SW SW W W W S SE S S S S  
WIND SPD 4 4 4 5 9 12 13 9 10 9 6 4 3 3 4 5 9 11 13 16  
WIND GUST 24  
CLOUDS FW FW FW FW FW FW FW SC B2 B2 B2 SC FW SC SC SC B1 B2 OV OV  
POP 12HR 0 0 5 0 30  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 9 8 7 6 14 23 26 23 23 24 23 24 22 25 29 32  
MIN CHILL 11 7 6 6 23 21 23 26 24 21 26  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 13 27 22 43 24 37 26 40  
TEMP 45 33 21 14 21 24 25 30 42 36 32 25 36 31 29 29 37 35  
DEWPT 44 29 13 7 8 11 16 19 29 31 29 22 25 23 23 24 29 29  
PWIND DIR SW W W S SW W N E SE  
WIND CHAR BZ GN LT GN GN LT LT LT LT  
AVG CLOUDS OV B2 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B2 B2 B2  
POP 12HR 90 10 0 5 10 10 10 10 10  
RAIN D L  
SNOW S  
 
 
ILZ039-161000-  
PAXTON-FORD IL  
40.45N 88.10W ELEV. 776 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 36 28 37 29  
TEMP 16 15 15 16 25 33 35 31 32 32 30 29 31 35 35 31 30 34 37 40  
DEWPT 12 11 11 13 20 28 31 29 31 32 30 29 31 34 34 30 30 34 37 40  
RH 84 84 84 88 81 82 85 92 96100100100100 96 96 96100100100100  
WIND DIR S SW S S S SW S S SW SW SW W W W S SE S S S S  
WIND SPD 5 5 5 6 9 13 13 10 12 11 9 5 4 3 5 9 11 14 18 19  
CLOUDS FW FW FW FW FW FW FW FW B2 B2 B2 SC FW SC SC SC B1 B2 OV OV  
POP 12HR 0 0 0 0 30  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 7 6 6 6 15 24 26 23 23 23 21 23 23 20 24 27 31  
MIN CHILL 10 6 5 7 23 21 21 24 22 20 25  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 13 28 22 44 24 38 27 41  
TEMP 45 33 19 14 22 25 25 30 42 36 31 25 37 32 29 29 38 36  
DEWPT 44 29 12 7 9 12 16 20 31 33 29 23 27 25 24 25 30 30  
PWIND DIR SW W W S SW W N E SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS OV B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B2 B2 B2  
POP 12HR 90 5 0 5 10 10 5 10 10  
RAIN D L  
SNOW S  
 
 
INZ001-161000-  
CROWN POINT-LAKE IN  
41.42N 87.34W ELEV. 697 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 34 30 38 30  
TEMP 18 15 15 15 23 32 34 32 32 33 31 31 33 37 37 32 31 34 38 41  
DEWPT 13 13 12 11 17 26 29 29 31 32 31 30 31 32 32 31 31 34 37 40  
RH 80 92 88 84 77 78 82 88 96 96100 96 92 82 82 96100100 96 96  
WIND DIR SW S S S S SW SW SW SW SW W W W W S S S S S S  
WIND SPD 5 3 4 5 8 13 14 13 13 12 10 6 5 5 5 8 12 14 17 18  
WIND GUST 24 25  
CLOUDS FW FW FW SC FW FW FW SC B2 B2 B2 SC FW SC SC SC B2 B2 B2 OV  
POP 12HR 0 0 5 0 30  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 10 7 6 13 22 24 22 23 24 23 24 27 31 25 22 25 29 32  
MIN CHILL 11 10 6 6 22 20 23 24 25 21 25  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 15 27 21 42 25 35 26 39  
TEMP 45 34 23 15 22 24 25 30 41 36 32 26 35 31 29 29 36 35  
DEWPT 43 31 16 9 8 11 15 20 28 31 28 22 25 25 24 23 28 29  
PWIND DIR SW W W S SW W NW E SE  
WIND CHAR BZ BZ GN GN GN LT LT LT LT  
AVG CLOUDS OV B2 B2 B1 SC SC B2 B1 B1 B2 B1 B1 SC SC B1 B2 B1 B1  
POP 12HR 90 20 0 10 20 10 10 10 10  
RAIN D L S S  
SNOW S S S  
 
 
INZ010-161000-  
KENTLAND-NEWTON IN  
40.77N 87.45W ELEV. 673 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 13 35 29 37 29  
TEMP 16 14 13 15 23 32 34 31 31 32 30 30 33 36 36 31 30 34 37 40  
DEWPT 12 11 11 10 19 26 30 28 30 31 30 29 31 33 33 30 30 34 36 40  
RH 84 88 91 80 84 78 85 88 96 96100 96 92 89 89 96100100 96100  
WIND DIR SW S S S S SW S SW SW SW SW W W W S S S S S S  
WIND SPD 5 4 4 5 9 13 13 10 10 10 8 5 4 3 4 5 9 12 14 16  
WIND GUST 26  
CLOUDS FW FW FW FW FW FW FW FW B2 B2 B2 SC SC SC SC B1 B1 B2 OV OV  
POP 12HR 0 0 0 0 30  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN C C D  
WIND CHILL 8 7 6 6 13 23 25 22 22 24 23 24 22 25 28 32  
MIN CHILL 10 7 5 6 22 21 22 26 24 22 26  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 14 26 21 43 24 37 26 39  
TEMP 45 33 21 15 22 24 25 29 41 36 31 25 36 31 29 28 37 34  
DEWPT 44 30 14 8 8 11 16 19 29 31 29 23 26 24 24 24 28 29  
PWIND DIR SW W W S SW W NW E SE  
WIND CHAR BZ GN LT GN GN LT LT LT LT  
AVG CLOUDS OV B2 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B2 B2 B2  
POP 12HR 90 20 0 5 10 10 10 10 10  
RAIN D L S  
SNOW S S  
 
 
INZ011-161000-  
RENNSSELAER-JASPER IN  
40.94N 87.15W ELEV. 661 FT  
615 PM CST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 13 35 29 37 30  
TEMP 17 15 14 14 22 32 34 31 31 33 31 31 33 36 36 31 31 35 38 41  
DEWPT 12 11 10 11 18 26 30 29 30 32 31 30 32 33 33 31 31 35 37 40  
RH 80 84 84 88 84 78 85 92 96 96100 96 96 89 89100100100 96 96  
WIND DIR SW S S S S SW S SW SW SW SW W W W S S S S S S  
WIND SPD 5 3 4 5 9 13 13 10 11 11 9 6 5 4 4 5 10 12 14 18  
CLOUDS FW FW FW SC FW FW FW SC B2 B2 B2 SC FW SC SC B1 B1 B2 OV OV  
POP 12HR 0 0 0 0 20  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN S S D  
WIND CHILL 9 8 7 5 12 22 25 22 22 24 23 25 25 22 26 29 32  
MIN CHILL 10 8 5 5 21 21 23 25 25 22 27  
 
DATE 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 15 26 22 43 25 36 26 39  
TEMP 45 34 23 16 22 24 25 29 41 36 31 26 36 31 29 28 37 35  
DEWPT 45 32 16 9 9 11 15 19 29 32 30 23 26 25 24 24 29 30  
PWIND DIR SW W W S SW W NW E SE  
WIND CHAR BZ BZ LT GN GN LT LT LT LT  
AVG CLOUDS OV B2 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B2 B2 B2  
POP 12HR 90 20 0 5 10 10 10 10 10  
RAIN D L S  
SNOW S S  
 
 
INZ019-161000-  
FOWLER-BENTON IN  
40.62N 87.32W ELEV. 812 FT  
715 PM EST MON DEC 15 2025  
 
DATE 12/15/25 TUE 12/16/25 WED 12/17/25 THU  
EST 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07  
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12  
 
MIN/MAX 14 35 29 37 30  
TEMP 16 14 14 15 23 32 34 31 31 32 31 31 32 35 36 31 31 34 38 41  
DEWPT 11 11 10 10 18 25 30 28 29 31 31 30 32 34 33 30 31 34 37 40  
RH 80 88 84 80 81 75 85 88 92 96100 96100 96 89 96100100 96 96  
WIND DIR SW SW S S S SW S S SW SW SW W W W S SE S S S S  
WIND SPD 5 4 5 5 9 13 14 10 11 11 9 5 4 3 4 5 10 13 16 18  
CLOUDS FW FW FW FW FW FW FW FW B2 B2 B2 SC FW SC SC B1 B1 B2 B2 OV  
POP 12HR 0 0 0 0 20  
QPF 12HR 0 0 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN S S D  
WIND CHILL 7 6 5 5 12 22 24 22 22 23 23 25 25 22 25 29 32  
MIN CHILL 10 6 5 5 22 21 22 26 24 22 26  
 
DATE 12/18 FRI 12/19/25 SAT 12/20/25 SUN 12/21/25 MON 12/22/25  
EST 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 47 14 26 22 43 25 37 27 39  
TEMP 45 34 22 15 21 24 25 29 41 36 32 26 36 31 29 29 36 35  
DEWPT 45 32 15 9 9 12 16 19 29 32 30 24 28 25 25 24 29 30  
PWIND DIR SW W W S SW W N E SE  
WIND CHAR BZ BZ LT GN GN LT LT LT LT  
AVG CLOUDS OV B2 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B2 B1 B2  
POP 12HR 90 10 0 5 10 10 10 10 10  
RAIN D L  
SNOW S  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page