Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
1212 PM CDT Sat Sep 26 2026

IAZ060-262100-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      65          59          67          59          70
Temp                   62 65 63 62 61 59 59 61 65 67 65 63 62 60 59 63 67 70 67
Dewpt                  61 63 62 61 60 59 59 60 62 64 63 62 61 59 58 59 60 62 62
RH                     97 93 97 97 97100100 97 90 90 93 97 97 96 96 87 78 76 84
Wind dir               SE SE SE SE SE SE SE SE  E  E  E  E  E  E  E  E SE SE SE
Wind spd               12 12 10  9  6  5  5  4  4  5  4  4  3  3  2  4  5  5  5
Clouds                 B2 B2 OV B2 B2 B2 B2 B2 B1 B1 B1 SC SC B1 B2 B2 B1 B1 B1
PoP 12hr                     30          50          30          10           0
QPF 12hr                   0.06        0.44        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  S  S  C  C  C  C  C  S  S
Tstms                            C  S  S


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          61    67      63    68      62    66      56    66
Temp          63 61 65 65   65 63 66 66   64 62 65 63   59 57 64 63
Dewpt         58 57 63 65   65 63 65 65   63 60 60 59   56 53 57 60
PWind dir        SE     S       S    SE      SE    SE      NE     N
Wind char        LT    GN      LT    LT      LT    GN      LT    LT
Avg clouds    B1 B2 B2 OV   OV OV OV B2   B2 B2 B2 B1   B1 B1 B1 SC
PoP 12hr         10    80      70    60      60    60      30    20
Rain shwrs           L  D    L  L  L  L    L  L  L  C    S  C  S  S
Tstms                C  C    S

$$
IAZ039-262100-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      61          56          66          57          70
Temp                   59 60 59 58 57 57 57 59 63 66 64 60 58 57 57 62 68 70 67
Dewpt                  56 57 56 56 55 55 55 57 58 58 59 59 57 57 56 59 59 58 58
RH                     90 90 90 93 93 93 93 93 84 75 84 96 96100 96 90 73 66 73
Wind dir               SE SE SE SE SE SE SE SE SE  E  E NE NE NE  E  E SE SE SE
Wind spd               11 12  9  8  6  5  5  5  4  3  3  2  1  1  1  2  4  4  4
Clouds                 OV B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 SC B2 B1 B1 SC SC
PoP 12hr                     90          50          40          10           0
QPF 12hr                   0.04        0.13        0.04           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              D  C     S  C  C  C  C  S  S


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          57    67      59    68      58    67      53    66
Temp          58 57 66 65   61 59 66 66   61 59 66 64   56 53 64 63
Dewpt         55 54 60 61   61 59 63 62   61 58 59 56   53 51 55 56
PWind dir        SE     S       S    SE      SE     E      NE     N
Wind char        LT    GN      GN    GN      LT    GN      LT    LT
Avg clouds    SC B1 B2 B2   B2 B2 OV B2   B2 B2 B2 B2   B1 B1 B1 SC
PoP 12hr          0    70      70    50      60    50      20    20
Rain shwrs           C  L    L  L  C  C    C  L  C  C    S  S  S  S
Tstms                   S

$$
IAZ048-262100-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      63          58          66          58          70
Temp                   61 63 61 60 60 58 58 60 64 66 64 62 61 59 58 62 67 70 66
Dewpt                  60 62 61 60 60 58 58 59 62 63 62 62 61 59 58 59 60 62 61
RH                     97 97100100100100100 96 93 90 93100100100100 90 78 76 84
Wind dir               SE SE SE SE SE SE SE SE SE  E  E  E  E  E  E  E SE SE SE
Wind spd               12 12 10  9  6  5  4  5  4  4  4  3  1  2  1  3  5  5  4
Wind gust              23
Clouds                 OV B2 OV B2 B2 B2 B2 B2 B1 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1
PoP 12hr                     40          50          30          10           0
QPF 12hr                   0.05        0.42        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S  S  C  C  C  C  C  S  S
Tstms                         S  C  S  S


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          59    67      61    68      60    66      54    66
Temp          62 59 64 64   64 61 66 66   63 60 65 62   58 55 63 62
Dewpt         59 57 63 64   64 61 65 64   63 60 59 58   55 52 57 59
PWind dir        SE     S       S    SE       E     E      NE     N
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B2 OV OV   OV OV OV OV   B2 B2 B2 B1   B1 B1 B1 SC
PoP 12hr          5    80      70    50      60    50      30    20
Rain shwrs           L  D    L  L  C  C    C  L  C  C    S  C  S  S
Tstms                S  C    S

$$
IAZ004-262100-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      63          57          68          57          70
Temp                   61 63 61 60 59 59 57 61 66 68 65 61 59 58 57 62 67 70 66
Dewpt                  60 61 61 60 59 59 57 60 63 63 63 61 59 58 57 59 60 61 61
RH                     97 93100100100100100 97 90 84 93100100100100 90 78 73 84
Wind dir               SE SE SE SE SE SE SE  S NE NE  E  E SE SE SE SE SE  S SE
Wind spd               16 13 11 10  8  5  4  3  3  5  4  3  2  2  3  5  9 10  8
Wind gust              27
Clouds                 OV OV OV OV OV B2 B2 B2 OV B2 B2 B1 B2 OV B2 B2 B2 B1 B1
PoP 12hr                     60          50          20          10           0
QPF 12hr                   0.06        0.07           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S  S  S  C  C  S
Tstms                      S  S  S  C  S


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          58    66      56    67      56    64      52    63
Temp          61 58 64 64   60 57 65 64   59 56 63 60   55 52 62 61
Dewpt         58 57 62 63   60 57 61 61   58 53 54 53   50 48 52 55
PWind dir        SE     S      SW     E       E    NE       N    NE
Wind char        GN    GN      LT    LT      LT    GN      LT    LT
Avg clouds    B2 B2 OV OV   B2 B2 B2 B1   B1 B1 B2 B1   B1 B1 B1 SC
PoP 12hr         30    80      40    30      30    30      20    10
Rain shwrs        C  D  L    C  C  C  S    S  C  C  S    S  S
Tstms                S  S

$$
IAZ035-262100-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      64          57          67          58          70
Temp                   61 63 62 61 60 59 58 61 65 67 65 62 60 59 58 62 67 70 66
Dewpt                  61 62 61 61 60 59 58 60 63 63 63 62 60 59 58 60 61 61 62
RH                    100 97 97100100100100 97 93 87 93100100100100 93 81 73 87
Wind dir               SE SE SE SE SE SE SE SE  E  E NE  E  E  E  E SE SE SE SE
Wind spd               13 11 10  9  6  5  4  3  2  3  3  2  1  2  1  3  5  5  4
Clouds                 OV OV OV B2 B2 OV OV B2 B2 B2 B2 B1 B2 OV B2 B2 B1 B1 B1
PoP 12hr                     40          70          30           5           0
QPF 12hr                   0.05        0.32        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S  S  S  C  C  C  S
Tstms                         S  S  C  C


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          59    66      59    68      58    65      53    65
Temp          62 59 64 64   63 59 65 65   61 58 64 61   56 53 62 61
Dewpt         59 58 63 64   63 59 64 64   61 57 57 56   53 51 55 58
PWind dir        SE     S       S     E       E    NE      NE    NE
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 OV OV OV   OV B2 OV B2   B2 B2 B2 B1   B1 B1 B1 B1
PoP 12hr         10    80      60    40      50    40      20    20
Rain shwrs           D  D    L  C  C  C    C  C  C  C    S  S  S  S
Tstms                S  S

$$
IAZ094-262100-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      69          60          69          61          70
Temp                   66 68 66 63 62 61 60 62 68 69 66 63 63 62 61 63 68 70 67
Dewpt                  63 65 65 63 61 60 60 62 65 66 65 63 61 60 58 59 61 63 63
RH                     90 90 97100 97 97100100 90 90 97100 93 93 90 87 78 78 87
Wind dir               SE SE SE SE SE SE SE SE SE  E NE  E  E  E  E  E SE SE  E
Wind spd               12 11  8  6  6  6  5  5  4  5  4  4  3  3  3  4  5  5  3
Clouds                 B2 B2 OV B2 B2 OV OV B2 B2 B2 B1 B1 B1 SC B2 B2 B1 B1 B1
PoP 12hr                     40          60          40          20          10
QPF 12hr                   0.03        0.40        0.09           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  C  C  C  C  L  C  S  S           S  S
Tstms                      S  S  C  C  C


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          61    68      63    69      62    68      57    67
Temp          63 61 67 66   66 63 67 67   65 62 67 63   60 57 65 64
Dewpt         59 58 65 66   66 63 67 67   65 61 63 62   58 54 60 62
PWind dir        SE     S       S    SE      SE     S       S    NE
Wind char        LT    GN      LT    LT      LT    GN      LT    LT
Avg clouds    B1 B2 B2 OV   OV OV OV B2   B2 B2 B2 B1   B1 B1 B1 SC
PoP 12hr         20    80      90    80      70    60      30    30
Rain shwrs        S  L  D    D  L  L  D    L  L  L  C    C  C  S  C
Tstms             S  S  C    C        S    C

$$
IAZ017-262100-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      61          54          66          55          70
Temp                   59 60 58 57 57 56 54 58 63 66 63 59 58 57 55 61 67 70 65
Dewpt                  57 57 57 57 56 55 54 58 59 60 59 59 58 57 55 59 59 59 58
RH                     93 90 96100 96 96100100 87 81 87100100100100 93 75 68 78
Wind dir               SE SE SE SE SE SE SE SE SE  E NE  E  E  E  N SE SE SE SE
Wind spd               13 12  9  8  6  5  4  4  3  2  2  1  1  1  0  3  4  5  4
Wind gust              24 24
Clouds                 OV B2 OV B2 OV OV OV B2 B2 B2 B2 B1 B2 B2 B2 B2 B1 B1 SC
PoP 12hr                     70          60          50           0           0
QPF 12hr                   0.07        0.25        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              L  C  S  C  C  L  C  C  S  S
Tstms                         S  S  S  S


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          55    66      56    68      55    66      50    64
Temp          59 56 64 63   60 57 66 64   60 56 64 61   55 51 62 61
Dewpt         56 55 60 61   60 57 62 60   59 55 55 53   50 48 53 54
PWind dir        SE     S       S    SE       E    NE      NE     N
Wind char        LT    GN      LT    LT      LT    GN      LT    LT
Avg clouds    B1 B2 B2 B2   B2 OV OV B2   B2 B2 B2 B2   B1 B1 B1 B1
PoP 12hr          5    70      60    40      40    30      20    20
Rain shwrs           L  L    L  C  C  C    C  C  C  C    S  S  S  S
Tstms                   S

$$
IAZ049-262100-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      61          56          65          56          69
Temp                   58 61 59 57 57 57 56 59 62 65 63 60 58 58 56 61 66 69 65
Dewpt                  57 59 58 57 56 55 55 58 60 60 60 59 58 57 56 59 59 60 59
RH                     96 93 96100 96 93 96 96 93 84 90 96100 96100 93 78 73 81
Wind dir               SE SE SE SE SE SE SE SE SE  E  E  E  E  E  E  E SE SE SE
Wind spd               11 11  9  6  5  5  4  4  3  3  3  2  2  2  1  2  3  3  3
Clouds                 OV B2 OV B2 B2 B2 B2 B2 B1 B2 B1 B1 B2 B1 B2 B2 B1 SC SC
PoP 12hr                     50          50          40          10           0
QPF 12hr                   0.05        0.30        0.05           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S  S  C  C  C  C  C  S  S
Tstms                            S


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          57    66      59    68      59    66      53    65
Temp          59 57 64 64   62 60 65 66   61 59 64 63   57 54 63 62
Dewpt         56 54 61 63   62 60 64 63   61 58 59 57   53 51 56 57
PWind dir        SE     S       S    SE      SE     E      NE     N
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC B1 B2 OV   OV B2 OV B2   B2 B2 B2 B2   B1 B1 B1 B1
PoP 12hr          0    70      70    50      60    50      20    20
Rain shwrs           C  L    L  L  C  C    L  L  C  C    S  S  S  S
Tstms                S  S

$$
IAZ086-262100-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
1212 PM CDT Sat Sep 26 2026

Date             Sat 09/26/26            Sun 09/27/26            Mon 09/28/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      64          58          68          58          71
Temp                   61 63 62 60 59 58 58 61 65 67 65 63 61 59 58 63 68 71 67
Dewpt                  59 61 60 59 58 57 57 60 62 63 63 62 60 58 57 60 61 62 62
RH                     93 93 93 96 96 96 96 97 90 87 93 97 97 96 96 90 78 73 84
Wind dir               SE SE SE SE SE SE SE SE SE  E NE  E  E  E  E  E SE SE  E
Wind spd               10 10  8  6  5  5  4  4  4  3  3  3  2  2  2  3  3  3  2
Clouds                 OV B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC B1 B1 B1 SC SC
PoP 12hr                     30          40          30          10           5
QPF 12hr                   0.03        0.32        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S     S  C  C  C  S
Tstms                            S  S


Date          Tue 09/29/26  Wed 09/30/26  Thu 10/01/26  Fri 10/02/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          60    70      63    70      63    69      57    68
Temp          61 60 67 67   65 63 68 68   65 63 67 65   60 58 65 64
Dewpt         57 55 64 66   65 63 67 68   65 63 65 63   59 55 61 62
PWind dir        SE     S       S     S      SE     S       S     N
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC B1 B2 B2   OV OV OV B2   B2 B2 B2 B2   B1 B1 B1 SC
PoP 12hr          0    60      80    70      60    60      40    30
Rain shwrs           C  L    D  D  L  L    L  L  L  C    C  C  C  C
Tstms                S  S    C             S  S

$$