241  
FOUS53 KLOT 152215  
PFMLOT  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
515 PM CDT THU MAY 15 2025  
 
ILZ104-160900-  
CHICAGO O'HARE INTERNATIONAL AIRPORT-COOK IL  
41.99N 87.91W ELEV. 667 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 62 87 54 67 51  
TEMP 80 73 66 63 64 77 85 86 75 68 61 56 56 60 63 66 66 61 57 54 53  
DEWPT 66 61 55 53 53 50 44 44 53 52 47 45 44 46 46 47 47 46 46 45 45  
RH 62 66 68 70 67 39 24 23 46 57 60 66 64 60 54 50 50 58 67 71 74  
WIND DIR S SW W SW S SW S S SW W W W W W W W W NW NW NW N  
WIND SPD 21 13 9 8 11 18 24 27 24 18 14 16 18 20 21 20 14 9 6 6 6  
WIND GUST 33 28 37 41 36 28  
CLOUDS B2 SC CL CL CL FW FW SC B1 FW SC SC SC B1 B1 SC FW SC SC SC SC  
POP 12HR 70 30 40 5 0  
QPF 12HR 0.26 0.05 0.05 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L C  
TSTMS L C  
HEAT INDEX 82  
MAX HEAT 93 82 84  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 64 45 60 50 60 50 59 48 63  
TEMP 61 54 48 47 56 56 53 52 57 57 54 53 57 56 52 51 59 57  
DEWPT 45 40 40 41 44 44 45 42 46 47 47 48 50 46 44 44 44 41  
PWIND DIR NE NE NE E E E NE N N  
WIND CHAR GN GN GN GN BZ BZ BZ GN GN  
AVG CLOUDS SC FW SC B1 B2 B1 B1 B2 B2 B2 B2 OV B2 B2 B1 B1 B1 SC  
POP 12HR 0 10 20 50 70 80 60 30 30  
RAIN SHWRS S S C C L L D L L L C S S C  
TSTMS S S S  
 

 
ILZ003-160900-  
GREATER ROCKFORD AIRPORT-WINNEBAGO IL  
42.20N 89.11W ELEV. 745 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 59 86 51 67 48  
TEMP 80 70 63 59 62 77 84 84 74 63 56 52 53 58 62 67 65 58 53 51 51  
DEWPT 61 54 51 50 50 50 44 43 50 48 44 43 43 45 45 45 44 45 44 44 43  
RH 52 57 65 72 65 39 25 24 43 58 64 71 69 62 54 45 46 62 71 77 74  
WIND DIR SW SW SW S S SW S S SW W W W W W W W NW NW NW NW NW  
WIND SPD 23 12 6 9 12 20 25 26 21 18 17 16 19 20 21 20 16 9 5 5 6  
WIND GUST 34 32 40 41 33 28  
CLOUDS B1 FW CL CL CL FW SC SC SC SC SC B1 B1 B1 B1 SC SC FW SC SC SC  
POP 12HR 10 20 20 5 0  
QPF 12HR 0 0.03 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S  
TSTMS S  
OBVIS BD BD  
HEAT INDEX 81  
MAX HEAT 91 82 82  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 70 43 63 50 61 49 60 46 65  
TEMP 66 66 47 45 60 61 53 52 58 59 54 52 57 59 51 50 62 61  
DEWPT 46 44 38 38 43 43 42 42 46 46 47 48 49 45 42 42 45 43  
PWIND DIR N E E E E E NE N N  
WIND CHAR GN GN BZ BZ BZ BZ BZ GN GN  
AVG CLOUDS SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 30 60 80 80 60 30 30  
RAIN SHWRS C S C L D L D L L C C S C C  
TSTMS S S S S  
 

 
ILZ104-160900-  
CHICAGO MIDWAY AIRPORT-COOK IL  
41.78N 87.76W ELEV. 612 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 63 88 56 67 52  
TEMP 80 73 67 63 64 77 85 86 74 68 62 56 56 61 64 66 66 61 57 55 54  
DEWPT 65 61 55 54 53 50 45 44 54 53 49 45 45 46 46 46 47 46 46 46 46  
RH 60 66 65 72 67 39 25 23 50 59 62 66 66 58 52 48 50 58 67 72 74  
WIND DIR S SW W S S S S S SW SW W W W W W W W NW NW NW N  
WIND SPD 21 13 9 8 11 17 23 26 24 18 14 14 17 20 20 19 14 9 8 6 6  
WIND GUST 33 27 37 41 36 28  
CLOUDS B2 SC CL CL CL FW FW SC B1 FW SC SC SC B1 B1 SC FW FW SC SC SC  
POP 12HR 70 30 50 5 0  
QPF 12HR 0.35 0.08 0.05 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L C S  
TSTMS L C S  
HEAT INDEX 82  
MAX HEAT 93 82 84  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 63 46 60 51 61 51 60 49 62  
TEMP 60 54 48 48 57 56 54 52 58 58 55 53 58 56 53 52 58 56  
DEWPT 45 41 41 42 45 45 47 44 47 48 48 50 50 46 45 45 44 41  
PWIND DIR NE NE NE E E E NE N N  
WIND CHAR GN GN GN GN BZ GN BZ GN GN  
AVG CLOUDS SC FW SC B1 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 20 50 70 80 60 30 30  
RAIN SHWRS S S C C L L D L L L C S S C  
TSTMS S S S S  
 

 
ILZ021-160900-  
MORRIS-GRUNDY IL  
41.43N 88.42W ELEV. 569 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 60 88 54 70 50  
TEMP 81 71 65 61 63 79 87 87 76 67 61 56 56 62 65 69 68 60 55 52 54  
DEWPT 66 59 53 53 53 50 45 46 55 53 47 45 44 46 47 47 46 45 45 45 45  
RH 60 66 65 75 70 36 23 24 48 61 60 66 64 56 52 45 45 58 69 77 71  
WIND DIR SW W SW S S SW S S SW W W W W W W W W NW NW NW NW  
WIND SPD 21 12 6 6 11 18 23 27 21 17 13 14 18 20 20 20 14 9 5 6 6  
WIND GUST 33 28 36 40 33 27  
CLOUDS B1 FW CL CL CL CL FW SC SC FW SC SC SC SC SC SC FW FW FW SC FW  
POP 12HR 50 30 30 0 0  
QPF 12HR 0.07 0.05 0.03 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C C  
TSTMS C C  
OBVIS BD BD  
HEAT INDEX 83  
MAX HEAT 95 84 85  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 73 47 67 53 66 52 62 48 66  
TEMP 69 66 50 49 63 63 57 55 62 63 57 55 61 60 53 51 63 62  
DEWPT 48 45 40 42 49 48 49 47 52 51 51 52 53 48 46 46 48 46  
PWIND DIR N NE E E E E NE N N  
WIND CHAR LT GN GN GN BZ GN BZ GN GN  
AVG CLOUDS FW FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 30 60 70 80 60 30 30  
RAIN SHWRS C C C L L L D L L L C S C  
TSTMS C S S C S S S S  
 

 
ILZ006-160900-  
WAUKEGAN-LAKE IL  
42.42N 87.87W ELEV. 745 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 58 85 52 65 48  
TEMP 75 68 62 58 61 75 82 82 71 63 57 53 53 58 62 64 63 57 54 50 51  
DEWPT 62 59 54 51 51 51 45 46 52 52 47 45 44 47 47 48 48 47 46 45 44  
RH 64 73 75 77 70 43 27 28 51 67 69 74 71 67 58 56 58 69 74 83 77  
WIND DIR S SW W SW S S S S SW W W W W W W W W W NW NW N  
WIND SPD 18 13 9 8 10 17 24 25 24 17 13 16 17 20 20 20 14 9 6 6 6  
WIND GUST 28 27 37 40 36 27 31 31  
CLOUDS B2 SC CL CL CL CL SC SC B1 SC B1 B1 B1 B1 B1 SC FW SC SC B1 B1  
POP 12HR 70 30 40 5 0  
QPF 12HR 0.16 0.09 0.03 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L C  
TSTMS L C  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 56 43 53 47 54 48 55 46 58  
TEMP 53 49 45 46 51 50 49 49 51 53 50 50 52 53 50 49 55 54  
DEWPT 44 40 39 39 43 42 42 40 45 45 44 46 47 45 44 43 45 43  
PWIND DIR NE NE NE E E E NE N N  
WIND CHAR GN GN GN GN BZ GN BZ GN GN  
AVG CLOUDS B1 SC FW B1 B2 B1 B1 B2 B2 B2 OV OV B2 B2 B1 B1 SC SC  
POP 12HR 0 5 20 50 70 80 60 30 30  
RAIN SHWRS S S S C L L D D L C C S C C  
TSTMS S  
 

 
ILZ021-160900-  
PONTIAC-LIVINGSTON IL  
40.92N 88.63W ELEV. 648 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 61 89 54 72 50  
TEMP 83 73 67 62 63 80 88 88 76 69 62 56 55 62 67 71 68 60 55 52 54  
DEWPT 67 57 52 51 52 51 46 49 57 54 48 44 43 46 48 48 47 47 46 45 46  
RH 59 57 59 67 67 36 23 26 52 59 60 64 64 56 50 44 47 62 72 77 74  
WIND DIR SW SW SW S S SW S S SW W W W W W W W W NW NW NW NW  
WIND SPD 23 12 8 9 12 18 24 27 23 18 13 13 18 21 21 20 16 8 5 5 5  
WIND GUST 34 28 36 40 36 28  
CLOUDS B1 FW CL CL CL CL CL SC SC FW FW FW FW SC SC FW FW FW FW FW FW  
POP 12HR 40 30 20 0 0  
QPF 12HR 0.01 0.03 0.01 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S S  
TSTMS C S S  
OBVIS BD BD  
HEAT INDEX 86 80  
MAX HEAT 96 82 85 86  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 75 48 71 55 68 53 63 48 67  
TEMP 71 72 51 50 66 68 58 57 63 65 57 56 61 60 52 51 63 62  
DEWPT 50 47 42 43 52 52 51 49 57 55 53 53 54 50 46 45 50 47  
PWIND DIR N NE E E E E NE N N  
WIND CHAR LT GN GN GN BZ BZ BZ GN GN  
AVG CLOUDS FW FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 5 20 40 60 80 80 60 30 30  
RAIN SHWRS S C C C L D L D L L L C C C  
TSTMS S S C S S C C C S C S  
 

 
INZ002-160900-  
VALPARAISO-PORTER IN  
41.45N 87.00W ELEV. 770 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 60 86 54 67 50  
TEMP 80 71 66 61 63 77 82 85 73 66 62 57 56 60 63 65 64 59 55 52 53  
DEWPT 67 64 58 55 55 53 48 48 55 56 53 48 45 46 46 46 45 46 46 46 46  
RH 65 79 75 81 75 43 31 28 53 70 72 72 66 60 54 50 50 62 72 80 77  
WIND DIR S SW W SW S S S S S SW SW W W W W W W NW NW NW NW  
WIND SPD 18 13 8 5 9 14 18 21 19 14 11 12 14 18 19 17 11 6 5 5 6  
WIND GUST 28 25 29 33 29 26 29  
CLOUDS B1 B1 FW CL CL CL FW SC B1 SC SC SC SC SC B1 SC FW FW FW SC FW  
POP 12HR 70 50 60 5 0  
QPF 12HR 0.47 0.09 0.07 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S S L C  
TSTMS C S S C C  
HEAT INDEX 82  
MAX HEAT 91 81 83  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 63 45 65 50 64 50 61 48 61  
TEMP 61 55 48 49 63 61 55 52 60 62 56 53 60 58 52 51 59 55  
DEWPT 45 41 42 43 47 47 45 42 46 46 46 49 51 47 46 46 45 43  
PWIND DIR N NE E E E E NE N N  
WIND CHAR GN LT GN GN GN GN GN GN GN  
AVG CLOUDS SC FW FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 SC SC  
POP 12HR 0 5 20 40 70 80 70 30 30  
RAIN SHWRS S S S C L L L D L L C S S C  
TSTMS S S S S S S  
 

 
ILZ005-160900-  
WOODSTOCK-MCHENRY IL  
42.31N 88.44W ELEV. 950 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 58 84 51 64 48  
TEMP 76 67 62 58 61 76 83 83 70 61 56 51 53 57 61 64 63 58 53 50 51  
DEWPT 64 56 53 51 52 51 44 45 52 50 46 45 44 47 48 48 48 47 46 45 44  
RH 66 68 72 77 72 42 25 26 53 67 69 80 71 69 62 56 58 67 77 83 77  
WIND DIR S SW W S S SW S S SW W W W W W W W W NW NW NW NW  
WIND SPD 20 12 9 8 12 19 25 27 20 17 14 17 18 20 21 20 14 9 5 5 6  
WIND GUST 32 29 39 41 32 27  
CLOUDS B1 FW CL CL CL FW SC SC B1 SC SC B1 B1 B1 B1 SC FW SC SC SC SC  
POP 12HR 50 30 30 5 0  
QPF 12HR 0.05 0.03 0.02 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C C  
TSTMS C C  
OBVIS BD BD  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 66 41 60 47 58 47 59 45 63  
TEMP 63 57 44 44 56 57 51 49 55 57 51 50 56 57 50 48 60 59  
DEWPT 48 44 38 39 45 44 42 41 46 47 46 47 50 47 43 42 47 44  
PWIND DIR N NE E E E E NE N N  
WIND CHAR GN GN GN GN BZ BZ BZ GN GN  
AVG CLOUDS SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 OV B2 B2 B1 B1 B1 SC  
POP 12HR 0 10 20 50 70 80 60 30 30  
RAIN SHWRS S S C C L L D L L C C S C C  
TSTMS S S  
 

 
ILZ008-160900-  
OREGON-OGLE IL  
42.01N 89.33W ELEV. 697 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 58 86 51 67 48  
TEMP 80 69 63 59 61 77 84 85 75 64 56 52 53 59 63 67 65 58 53 51 51  
DEWPT 60 54 52 50 50 50 44 44 50 47 43 43 43 45 46 45 45 45 44 43 43  
RH 51 59 67 72 67 39 25 24 41 54 62 71 69 60 54 45 48 62 71 74 74  
WIND DIR SW SW SW S S SW S S SW W W W W W W W NW NW NW NW NW  
WIND SPD 23 12 6 9 12 19 25 27 21 18 18 17 18 19 20 19 13 6 4 5 5  
WIND GUST 34 29 40 41 33 28  
CLOUDS SC FW CL CL CL FW B1 SC SC SC SC B1 B1 B1 B1 SC SC FW FW SC SC  
POP 12HR 5 20 10 5 0  
QPF 12HR 0 0.03 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS  
TSTMS  
OBVIS BD BD  
HEAT INDEX 81  
MAX HEAT 90 82 83  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 71 45 65 51 62 49 61 46 65  
TEMP 67 67 48 46 61 62 54 54 59 60 54 52 58 59 51 50 62 62  
DEWPT 46 45 38 38 45 44 44 45 48 48 48 49 49 46 43 43 46 44  
PWIND DIR N E E E E E NE N N  
WIND CHAR LT GN GN GN BZ GN BZ GN GN  
AVG CLOUDS SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 30 60 80 80 60 30 30  
RAIN SHWRS C C C L D L D L L C C S C C  
TSTMS C S S C S S S  
 

 
ILZ011-160900-  
SYCAMORE-DEKALB IL  
41.98N 88.69W ELEV. 863 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 59 86 51 66 48  
TEMP 77 69 63 59 62 76 84 84 73 63 57 52 53 58 62 66 64 58 53 51 51  
DEWPT 64 57 53 52 52 51 45 45 51 50 45 44 44 46 47 47 46 46 45 44 44  
RH 64 66 70 78 70 42 26 26 46 62 64 74 71 64 58 50 52 64 74 77 77  
WIND DIR SW SW W S S S S S SW W W W W W W W W NW NW NW NW  
WIND SPD 23 12 8 8 13 19 26 27 23 17 17 17 19 21 21 20 14 9 5 6 6  
WIND GUST 34 29 40 42 34 27  
CLOUDS B1 FW CL CL CL FW SC SC SC SC SC B1 B1 B1 B1 SC SC FW SC SC SC  
POP 12HR 30 30 20 5 0  
QPF 12HR 0 0.03 0.01 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S  
TSTMS C S  
OBVIS BD BD  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 70 43 63 50 61 49 59 46 65  
TEMP 66 63 46 45 60 59 53 52 58 59 53 52 58 57 50 49 61 60  
DEWPT 48 45 38 39 45 45 45 43 47 48 48 48 50 47 44 43 46 44  
PWIND DIR N NE E E E E NE N N  
WIND CHAR GN GN GN GN BZ BZ BZ GN GN  
AVG CLOUDS SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 OV B2 B2 B1 B1 B1 SC  
POP 12HR 0 10 30 60 70 80 60 30 30  
RAIN SHWRS C S C L L L D L L C C S C C  
TSTMS C S S S  
 

 
ILZ010-160900-  
DIXON-LEE IL  
41.85N 89.45W ELEV. 697 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 59 85 51 67 48  
TEMP 81 69 63 59 62 77 84 85 76 64 56 51 53 58 63 67 65 57 53 50 51  
DEWPT 56 53 51 50 50 49 43 44 50 48 44 43 44 46 47 47 46 46 45 44 44  
RH 42 57 65 72 65 37 24 24 40 56 64 74 71 64 56 49 50 67 74 80 77  
WIND DIR SW W SW S S SW S SW SW W W W W W W W NW NW NW NW NW  
WIND SPD 23 11 6 9 12 18 25 26 21 18 17 17 17 19 20 18 13 5 4 5 5  
WIND GUST 34 28 40 41 33 29  
CLOUDS SC FW CL CL CL FW B1 SC SC SC SC SC B1 B1 SC SC SC FW FW FW FW  
POP 12HR 5 20 10 0 0  
QPF 12HR 0 0.03 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS  
TSTMS  
OBVIS BD BD  
HEAT INDEX 81  
MAX HEAT 90 82 83  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 72 45 66 52 63 50 60 46 66  
TEMP 68 69 50 47 62 63 55 54 60 60 55 53 58 58 51 50 62 62  
DEWPT 48 46 40 39 47 47 46 47 51 51 50 51 51 48 45 44 48 47  
PWIND DIR N E E E E E NE N N  
WIND CHAR LT GN GN GN BZ GN BZ GN GN  
AVG CLOUDS FW FW SC B1 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 30 60 80 80 60 20 30  
RAIN SHWRS C C C L D L D L L C S S C S  
TSTMS C S S C S S S  
 

 
ILZ012-160900-  
GENEVA-KANE IL  
41.88N 88.31W ELEV. 727 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 59 87 53 67 50  
TEMP 77 70 64 59 62 77 85 85 73 64 58 53 54 59 63 66 65 59 55 52 52  
DEWPT 65 58 54 53 53 51 45 44 54 52 47 45 45 47 47 47 47 46 46 46 46  
RH 67 66 70 80 72 40 25 24 51 65 67 74 71 64 56 50 52 62 72 80 80  
WIND DIR SW SW W S S S S S SW W W W W W W W W NW NW NW N  
WIND SPD 23 12 8 6 11 18 25 27 23 17 16 16 18 21 21 20 16 9 6 6 6  
WIND GUST 34 28 37 41 34 28 32 31  
CLOUDS B1 FW CL CL CL CL FW SC SC SC SC SC SC B1 B1 SC SC FW SC SC SC  
POP 12HR 60 30 30 5 0  
QPF 12HR 0.09 0.03 0.03 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L C  
TSTMS L C  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 69 44 63 50 62 50 60 47 65  
TEMP 66 59 47 46 60 59 53 52 59 59 54 52 58 58 51 50 61 59  
DEWPT 47 44 39 40 46 46 46 44 49 49 48 50 51 47 44 44 47 44  
PWIND DIR N NE E E E E NE N N  
WIND CHAR GN GN GN GN BZ BZ BZ GN GN  
AVG CLOUDS SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 OV B2 B2 B1 B1 B1 SC  
POP 12HR 0 10 20 50 70 80 60 30 30  
RAIN SHWRS S S C C L L D L L C C S S C  
TSTMS S S S S  
 

 
ILZ020-160900-  
YORKVILLE-KENDALL IL  
41.64N 88.45W ELEV. 618 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 59 87 53 68 50  
TEMP 79 70 63 60 62 78 86 86 75 65 59 54 54 60 65 67 66 59 54 52 53  
DEWPT 66 57 53 52 53 51 44 46 55 52 47 45 44 46 46 46 46 45 45 45 45  
RH 64 63 70 75 72 39 23 25 50 63 64 71 69 60 50 47 48 60 71 77 74  
WIND DIR SW SW SW S S SW S S SW W W W W W W W W NW NW NW NW  
WIND SPD 21 12 6 6 11 18 24 27 23 17 14 14 18 20 21 20 14 9 6 6 6  
WIND GUST 33 28 36 41 34 27 31  
CLOUDS B1 FW CL CL CL CL FW SC SC SC SC SC SC B1 B1 SC FW FW FW SC SC  
POP 12HR 40 30 30 0 0  
QPF 12HR 0.06 0.05 0.03 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C C  
TSTMS C C  
OBVIS BD BD  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 72 45 65 52 64 52 61 48 65  
TEMP 68 64 48 47 61 61 55 54 60 61 56 54 59 59 52 51 63 60  
DEWPT 47 45 40 41 48 47 47 45 50 50 50 51 52 48 45 45 48 45  
PWIND DIR N NE E E E E NE N N  
WIND CHAR GN GN GN GN BZ GN BZ GN GN  
AVG CLOUDS SC FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 30 60 70 80 60 30 30  
RAIN SHWRS C C C L L L D L L C C S S C  
TSTMS C S S C S S S  
 

 
ILZ013-160900-  
WHEATON-DUPAGE IL  
41.86N 88.11W ELEV. 752 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 62 87 54 67 51  
TEMP 79 73 66 62 64 77 85 86 74 67 60 55 55 60 63 66 66 61 56 54 53  
DEWPT 65 59 54 53 53 50 43 44 54 52 47 45 44 46 47 47 47 46 46 46 45  
RH 62 62 65 72 67 39 23 23 50 59 62 69 66 60 56 50 50 58 69 74 74  
WIND DIR S SW W S S SW S S SW W W W W W W W W NW NW NW N  
WIND SPD 21 12 9 6 10 18 24 27 23 18 14 16 18 20 21 20 16 9 6 6 6  
WIND GUST 33 28 37 41 34 28 31 32 31  
CLOUDS B1 SC CL CL CL CL FW SC B1 FW SC SC B1 B1 B1 SC FW SC SC SC SC  
POP 12HR 70 30 40 5 0  
QPF 12HR 0.21 0.08 0.05 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L C  
TSTMS L C  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 68 45 61 51 61 51 60 48 64  
TEMP 64 57 48 47 58 58 54 52 58 59 54 53 58 57 52 51 61 58  
DEWPT 46 42 40 41 45 44 46 43 48 48 48 50 51 46 44 45 45 42  
PWIND DIR N NE NE E E E NE N N  
WIND CHAR GN GN GN GN BZ BZ BZ GN GN  
AVG CLOUDS SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 OV B2 B2 B1 B1 SC SC  
POP 12HR 0 10 20 50 70 80 60 30 30  
RAIN SHWRS S S C C L L D L L L C S S C  
TSTMS S S S S  
 

 
ILZ019-160900-  
OTTAWA-LASALLE IL  
41.35N 88.84W ELEV. 494 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 61 87 54 69 50  
TEMP 81 71 65 62 63 79 86 86 75 66 60 55 55 60 65 69 68 60 55 52 53  
DEWPT 65 57 52 51 51 50 44 46 54 50 45 43 42 44 45 46 45 44 44 44 44  
RH 58 61 63 67 65 36 23 25 48 56 58 64 61 55 48 44 43 55 66 74 71  
WIND DIR SW SW SW S S SW S SW SW W W W W W W W W NW NW NW NW  
WIND SPD 23 11 8 8 11 18 23 27 23 18 16 16 18 20 20 20 14 9 5 5 6  
WIND GUST 34 28 36 41 34 28  
CLOUDS SC FW CL CL CL CL FW SC SC FW SC SC SC SC SC FW FW FW FW FW FW  
POP 12HR 20 30 20 0 0  
QPF 12HR 0 0.03 0 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S  
TSTMS S S  
OBVIS BD BD  
HEAT INDEX 83  
MAX HEAT 94 83 85  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 74 48 68 54 65 53 61 49 66  
TEMP 69 70 50 50 63 65 57 56 61 63 57 55 59 60 53 51 63 62  
DEWPT 47 45 40 40 47 48 47 47 52 51 51 51 51 47 44 44 47 45  
PWIND DIR N NE E E E E NE N N  
WIND CHAR LT GN GN GN BZ BZ BZ GN GN  
AVG CLOUDS FW FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 30 60 80 80 60 30 30  
RAIN SHWRS C C C L D L D L L C C C C  
TSTMS S S C S S C C S S S S  
 

 
ILZ106-160900-  
JOLIET-WILL IL  
41.53N 88.12W ELEV. 655 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 61 88 54 68 50  
TEMP 79 72 65 61 63 78 85 87 76 67 61 56 55 61 65 67 66 60 55 52 54  
DEWPT 66 60 54 53 54 51 47 47 56 54 49 46 45 46 47 47 46 46 46 46 46  
RH 64 66 68 75 72 39 27 25 50 63 65 69 69 58 52 49 48 60 72 80 74  
WIND DIR SW SW SW S S S S S SW W W W W W W W W NW NW NW NW  
WIND SPD 21 12 6 6 10 17 23 27 21 17 14 14 18 20 20 19 14 9 5 5 6  
WIND GUST 33 27 36 40 33 27 29  
CLOUDS B1 SC CL CL CL CL FW SC SC FW SC SC SC SC B1 SC FW FW FW SC SC  
POP 12HR 70 30 30 0 0  
QPF 12HR 0.13 0.05 0.04 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L C  
TSTMS L C  
OBVIS BD BD  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 71 46 65 52 65 52 61 48 65  
TEMP 68 60 48 49 62 61 56 54 61 62 56 55 60 59 53 52 62 60  
DEWPT 47 43 41 43 48 48 49 46 51 51 51 52 53 48 46 47 48 44  
PWIND DIR N NE E E E E NE N N  
WIND CHAR GN GN GN GN BZ GN BZ GN GN  
AVG CLOUDS SC FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 30 50 70 80 60 30 30  
RAIN SHWRS C C C C L L D L L L C S S C  
TSTMS C S S C S S S  
 

 
ILZ023-160900-  
KANKAKEE-KANKAKEE IL  
41.12N 87.86W ELEV. 630 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 61 87 54 69 50  
TEMP 82 72 65 61 63 79 86 86 76 68 62 56 55 61 65 68 66 59 54 51 53  
DEWPT 67 64 55 54 54 52 46 48 57 55 50 45 44 47 47 47 46 46 46 46 47  
RH 61 76 70 78 72 39 25 27 52 63 65 66 66 60 52 47 48 62 74 83 80  
WIND DIR SW SW W SW S S S S SW SW W W W W W W W NW NW NW NW  
WIND SPD 20 12 8 6 10 14 18 24 20 17 12 14 16 18 19 18 13 5 4 5 5  
WIND GUST 32 25 31 36 32 27  
CLOUDS B1 SC CL CL CL CL CL SC B1 SC FW SC SC SC SC SC FW FW FW FW FW  
POP 12HR 60 40 40 0 0  
QPF 12HR 0.12 0.03 0.03 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L S C S  
TSTMS L S C S  
HEAT INDEX 84  
MAX HEAT 94 83 84  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 72 46 68 52 66 52 61 48 64  
TEMP 68 62 48 49 64 63 56 54 61 62 56 55 60 58 51 51 61 59  
DEWPT 49 45 41 44 51 49 49 47 53 52 51 53 53 50 47 47 49 45  
PWIND DIR N NE E E E E NE N N  
WIND CHAR LT GN GN GN GN GN GN GN GN  
AVG CLOUDS SC FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 0 10 30 50 70 80 60 30 30  
RAIN SHWRS C C C C L L D L L L C S S C  
TSTMS C S S S C S S S S  
 

 
ILZ033-160900-  
WATSEKA-IROQUOIS IL  
40.78N 87.73W ELEV. 636 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 60 87 54 70 50  
TEMP 83 73 66 61 63 79 86 86 76 69 62 56 55 62 66 69 67 60 55 52 53  
DEWPT 68 64 56 54 55 53 47 50 57 56 52 45 44 46 47 46 45 45 46 45 46  
RH 61 73 70 78 75 41 26 29 52 63 70 66 66 56 50 44 45 58 72 77 77  
WIND DIR SW SW W SW S SW S S S SW W W W W W W W NW NW NW NW  
WIND SPD 21 12 8 8 10 13 18 23 18 16 12 12 14 18 19 18 12 5 4 4 4  
WIND GUST 33 31 35 28 26  
CLOUDS B1 SC CL CL CL CL CL B1 B1 SC FW FW FW SC SC FW FW FW FW FW FW  
POP 12HR 50 50 40 0 0  
QPF 12HR 0.11 0.11 0.02 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S C S  
TSTMS C S C S  
HEAT INDEX 86  
MAX HEAT 93 82 83 84  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 74 48 70 53 68 52 62 48 65  
TEMP 70 68 50 50 67 67 58 55 63 64 56 56 61 59 52 51 63 60  
DEWPT 48 46 43 44 51 50 49 47 54 53 51 53 53 49 46 47 49 45  
PWIND DIR N NE E E E E NE N N  
WIND CHAR LT LT GN GN GN GN GN GN GN  
AVG CLOUDS FW FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 0 10 30 50 70 80 70 30 30  
RAIN SHWRS C C C C L L D L L L C S C  
TSTMS S S C S S C C C S C S  
 

 
ILZ039-160900-  
PAXTON-FORD IL  
40.45N 88.10W ELEV. 776 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 60 88 54 72 50  
TEMP 84 75 66 61 62 80 88 86 76 69 63 56 56 62 67 71 68 60 55 52 54  
DEWPT 68 63 55 53 54 53 48 52 58 54 51 45 43 46 47 48 46 45 46 45 45  
RH 59 66 68 75 75 39 25 31 54 59 65 66 62 56 49 44 45 58 72 77 71  
WIND DIR SW SW W SW S S S S SW SW W W W W W W W W NW NW NW  
WIND SPD 21 13 8 8 10 16 21 26 21 17 12 13 16 19 20 20 13 6 5 5 5  
WIND GUST 33 26 33 37 33 27  
CLOUDS B1 SC CL CL CL FW FW B1 SC SC FW FW FW SC SC FW FW FW FW FW FW  
POP 12HR 40 50 30 0 0  
QPF 12HR 0.07 0.18 0.01 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S C S  
TSTMS C S C S  
HEAT INDEX 87 80  
MAX HEAT 96 83 85 85  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 75 49 73 56 70 54 63 49 66  
TEMP 71 72 53 52 68 69 60 57 65 66 58 57 63 60 53 51 63 62  
DEWPT 49 47 43 44 53 53 51 50 57 56 53 53 54 50 46 46 49 46  
PWIND DIR N NE E E E E NE N N  
WIND CHAR LT GN GN GN BZ GN BZ GN GN  
AVG CLOUDS FW FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC  
POP 12HR 5 20 40 60 80 80 70 30 30  
RAIN SHWRS S C C C L D D D L L L C S C  
TSTMS S S C S S C C C S C S  
 

 
INZ001-160900-  
CROWN POINT-LAKE IN  
41.42N 87.34W ELEV. 697 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 59 86 54 67 50  
TEMP 79 70 64 60 62 77 83 85 74 66 61 56 55 60 63 65 65 59 55 52 53  
DEWPT 67 64 57 54 55 53 47 48 56 56 52 47 45 47 47 48 47 46 46 46 47  
RH 67 81 78 81 78 43 28 28 53 70 72 72 69 62 56 54 52 62 72 80 80  
WIND DIR S SW W SW S S S S S SW W W W W W W W W NW NW NW  
WIND SPD 19 12 9 6 10 14 19 23 19 16 12 13 14 18 19 18 12 6 5 5 5  
WIND GUST 29 25 31 35 31 26 29  
CLOUDS B2 SC CL CL CL CL FW SC B1 SC SC SC SC SC B1 SC FW FW FW SC SC  
POP 12HR 60 40 50 0 0  
QPF 12HR 0.37 0.03 0.08 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L S C S  
TSTMS L S C S  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 64 45 64 50 64 51 61 48 60  
TEMP 61 55 47 49 61 60 55 52 60 61 56 54 59 57 52 51 58 55  
DEWPT 47 42 42 44 48 48 46 43 49 49 48 51 52 48 46 47 47 43  
PWIND DIR N NE NE E E E NE N N  
WIND CHAR GN GN GN GN GN GN GN GN GN  
AVG CLOUDS SC FW FW SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC  
POP 12HR 0 10 20 50 70 80 70 30 30  
RAIN SHWRS S S C C L L D D L L C S S C  
TSTMS S S S S S S S S  
 

 
INZ010-160900-  
KENTLAND-NEWTON IN  
40.77N 87.45W ELEV. 673 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 60 86 54 69 50  
TEMP 83 73 66 61 63 78 85 85 76 68 62 56 56 62 66 69 66 60 55 52 54  
DEWPT 68 65 57 54 56 53 47 50 58 58 53 47 44 47 47 46 46 46 46 45 47  
RH 61 76 73 78 78 42 27 30 54 70 72 72 64 58 50 44 48 60 72 77 77  
WIND DIR S SW W SW S SW S S S SW SW W W W W W W NW W NW NW  
WIND SPD 18 13 8 6 9 13 18 20 18 16 12 12 13 18 19 18 12 5 4 4 4  
WIND GUST 28 31 34 28 26  
CLOUDS B2 SC CL CL CL CL CL SC B1 SC FW FW FW SC SC SC FW FW FW FW FW  
POP 12HR 50 50 50 0 0  
QPF 12HR 0.12 0.15 0.02 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S C C  
TSTMS C S C C  
HEAT INDEX 86  
MAX HEAT 94 83 83  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 73 47 70 53 67 52 62 48 64  
TEMP 69 65 50 50 67 66 57 54 63 63 56 55 61 58 52 51 62 59  
DEWPT 48 46 43 44 51 50 48 47 53 52 50 52 54 49 46 47 49 46  
PWIND DIR N NE E E E E NE N N  
WIND CHAR LT LT GN GN GN GN GN GN GN  
AVG CLOUDS FW FW SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 SC  
POP 12HR 0 10 30 50 70 80 70 30 30  
RAIN SHWRS C C C C L L D D L L C S S C  
TSTMS C S S C C S S C S  
 

 
INZ011-160900-  
RENNSSELAER-JASPER IN  
40.94N 87.15W ELEV. 661 FT  
515 PM CDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
CDT 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 60 86 54 68 50  
TEMP 81 72 66 61 63 78 85 85 75 67 61 56 56 61 65 67 66 59 55 52 53  
DEWPT 68 65 58 55 56 53 47 49 58 58 53 48 46 47 47 47 46 46 46 45 47  
RH 65 79 75 81 78 42 27 29 55 73 75 74 69 60 52 49 48 62 72 77 80  
WIND DIR S SW W SW S SW S S S SW SW W W W W W W W W NW NW  
WIND SPD 18 12 9 6 8 14 18 21 18 14 11 13 13 18 19 18 12 5 4 4 5  
WIND GUST 28 25 31 34 29 26  
CLOUDS B1 B1 CL CL CL CL CL SC B1 SC SC FW FW SC SC SC FW FW FW FW FW  
POP 12HR 60 50 60 0 0  
QPF 12HR 0.14 0.17 0.04 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S S L C  
TSTMS C S S C C  
HEAT INDEX 84  
MAX HEAT 92 83 83  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
CDT 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 71 47 69 52 65 52 62 48 63  
TEMP 68 62 49 50 65 65 56 53 62 62 56 55 61 58 52 51 61 57  
DEWPT 49 45 42 44 51 49 47 45 51 50 48 52 54 49 46 47 49 45  
PWIND DIR N NE E E E E E N N  
WIND CHAR LT LT GN GN GN GN GN GN GN  
AVG CLOUDS SC FW SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 0 10 30 50 70 80 70 30 30  
RAIN SHWRS C C C C L L D D L L C S S C  
TSTMS S S S S S S S S S  
 

 
INZ019-160900-  
FOWLER-BENTON IN  
40.62N 87.32W ELEV. 812 FT  
615 PM EDT THU MAY 15 2025  
 
DATE 05/15/25 FRI 05/16/25 SAT 05/17/25 SUN  
EDT 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08  
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 60 86 55 69 50  
TEMP 83 73 66 61 63 77 84 85 75 68 62 57 56 61 65 69 66 59 55 52 54  
DEWPT 69 65 59 56 57 54 48 51 60 59 54 48 45 47 48 47 47 46 46 45 47  
RH 63 76 78 84 81 45 29 31 60 73 75 72 66 60 54 45 50 62 72 77 77  
WIND DIR S SW W SW S SW S S S SW W W W W W W W W NW NW NW  
WIND SPD 18 13 10 6 9 13 17 21 18 16 12 13 14 18 19 18 12 5 4 4 5  
WIND GUST 28 29 33 29 26 29  
CLOUDS B2 B1 CL CL CL CL CL B1 B1 SC FW FW FW SC SC SC FW FW FW FW FW  
POP 12HR 50 50 50 0 0  
QPF 12HR 0.07 0.24 0.02 0 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S S C C  
TSTMS C S S C C  
HEAT INDEX 87  
MAX HEAT 94 83 83 83  
TORNADO A  
 
DATE 05/18 MON 05/19/25 TUE 05/20/25 WED 05/21/25 THU 05/22/25  
EDT 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20  
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00  
 
MAX/MIN 73 48 70 53 68 53 61 49 64  
TEMP 70 67 51 51 67 67 58 55 63 64 57 56 61 58 53 52 62 59  
DEWPT 49 47 43 45 51 52 48 47 54 53 51 53 54 50 47 47 49 46  
PWIND DIR NW NE E E E E NE N N  
WIND CHAR LT LT GN GN GN GN GN GN GN  
AVG CLOUDS FW FW SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC  
POP 12HR 0 10 30 50 80 80 70 30 30  
RAIN SHWRS C C C C L D D D L L C S S C  
TSTMS C S S C C S S C S S  
 

 
 
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