Point Forecast Matrices
Issued by NWS Des Moines, IA

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

IAZ060-262100-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
127 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          60          69          60          71
Temp                      65 64 62 61 60 60 62 66 68 66 63 62 61 60 64 68 71 67
Dewpt                     64 63 62 61 60 60 61 63 65 64 63 62 61 60 61 61 63 62
RH                        97 97100100100100 97 90 90 93100100100100 90 78 76 84
Wind dir                  SE SE SE SE SE SE SE  E  E  E  E  E  E  E  E SE SE  E
Wind spd                  12 10  9  6  5  5  4  4  5  4  4  3  3  3  4  5  6  5
Clouds                    B2 OV B2 B2 B2 B2 B2 B1 B1 B1 SC SC B1 B2 B1 B1 B1 B1
PoP 12hr                     20          50          30          10           5
QPF 12hr                   0.02        0.12        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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          60    69      64    70      62    69      56    67
Temp          62 60 66 65   65 64 68 67   64 63 67 64   59 57 64 63
Dewpt         59 55 63 65   65 64 66 66   64 62 62 60   57 54 57 58
PWind dir        SE     S       S     S      SE    NE       N     E
Wind char        LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    SC B1 B2 OV   OV OV OV B2   B2 B2 B2 B2   B1 SC SC SC
PoP 12hr          0    80      80    70      70    60      30    30
Rain shwrs           C  D    D  L  L  L    L  L  L  C    C  C  C  C
Tstms                S  C    S             S  S  S  C    S        S

$$
IAZ039-262100-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
127 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          57          66          57          71
Temp                      60 61 58 58 57 57 60 63 65 64 60 59 58 57 62 68 71 67
Dewpt                     57 57 57 56 56 56 58 60 60 60 60 59 58 57 60 60 59 60
RH                        90 87 96 93 96 96 93 90 84 87100100100100 93 76 66 78
Wind dir                  SE SE SE SE SE SE SE SE  E  E NE NE NE  E  E SE SE SE
Wind spd                  12  9  8  6  5  5  5  4  3  3  2  1  1  1  2  4  4  4
Clouds                    B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 SC B1 B1 SC SC SC
PoP 12hr                     80          50          40          10           5
QPF 12hr                   0.03        0.03        0.03           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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    69      60    70      60    69      53    66
Temp          58 57 66 64   61 61 68 67   62 60 67 64   56 53 64 62
Dewpt         57 54 60 63   61 61 64 63   62 60 61 57   54 51 55 55
PWind dir        SE     S       S     S       S    NW       N    NE
Wind char        LT    GN      GN    LT      LT    GN      LT    GN
Avg clouds    SC B1 B2 B2   OV B2 B2 B2   B2 B2 B2 B1   B1 SC SC SC
PoP 12hr          0    60      70    60      60    50      30    20
Rain shwrs           S  L    L  L  L  L    C  L  C  C    C  C  S  S
Tstms                   S    S

$$
IAZ048-262100-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
127 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          59          68          59          71
Temp                      63 63 61 60 59 59 61 65 66 65 63 61 60 59 63 68 71 67
Dewpt                     63 62 61 60 59 59 61 63 64 64 63 61 60 59 61 61 62 62
RH                       100 97100100100100100 93 93 97100100100100 93 78 73 84
Wind dir                  SE SE SE SE SE SE SE SE  E  E  E  E  E  E  E SE SE SE
Wind spd                  12 10  9  6  5  4  5  4  4  4  3  1  2  2  3  5  6  4
Clouds                    B2 OV B2 B2 B2 B2 B2 B1 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1
PoP 12hr                     30          50          30          10           5
QPF 12hr                   0.01        0.15        0.02           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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    69      62    71      61    69      55    67
Temp          61 59 66 64   63 62 68 67   64 61 66 64   58 55 64 62
Dewpt         59 56 63 64   63 62 65 66   63 61 61 59   56 53 56 57
PWind dir        SE     S       S     S      SE     N       N     E
Wind char        LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B2 OV OV   OV OV OV OV   B2 B2 B2 B2   B1 SC SC SC
PoP 12hr          0    80      70    60      60    60      30    30
Rain shwrs           C  D    L  L  L  L    L  L  L  C    S  C  S  C
Tstms                S  C    S                   S  S

$$
IAZ004-262100-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
127 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                      63 63 60 59 59 59 61 65 67 66 61 59 59 57 62 67 69 67
Dewpt                     61 62 60 59 59 59 61 63 64 63 61 59 59 57 60 61 62 62
RH                        93 97100100100100100 93 90 90100100100100 93 81 78 84
Wind dir                  SE SE SE SE SE SE  S NE NE  E  E SE SE SE SE SE  S SE
Wind spd                  13 11 10  8  5  4  3  3  5  4  3  2  2  3  5  9 10  8
Clouds                    OV OV OV OV B2 B2 B2 OV B2 B2 B1 B2 OV B2 B2 B2 B1 B1
PoP 12hr                     40          50          20          10           0
QPF 12hr                   0.02        0.14           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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      58    69      56    66      52    64
Temp          60 58 63 64   60 58 66 66   59 57 64 62   55 52 61 60
Dewpt         59 56 61 64   60 58 61 62   59 55 55 54   50 47 51 53
PWind dir         S     S      SW    SE      SW     N       N    NE
Wind char        GN    GN      LT    LT      LT    GN      LT    GN
Avg clouds    B1 B2 OV OV   B2 B1 B2 B1   B1 B2 B2 B1   SC SC SC SC
PoP 12hr         10    80      40    40      40    30      20    20
Rain shwrs        S  D  D    C  S  C  C    C  C  C  C       S  S  S
Tstms                S  S

$$
IAZ035-262100-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
127 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          59          71
Temp                      64 63 61 60 59 59 61 64 66 65 62 61 60 59 63 68 70 67
Dewpt                     63 63 61 60 59 59 61 63 64 64 62 61 60 59 61 62 62 63
RH                        97100100100100100100 97 93 97100100100100 93 81 76 87
Wind dir                  SE SE SE SE SE SE SE  E  E NE  E  E  E  E SE SE SE SE
Wind spd                  11 10  9  6  5  4  3  2  3  3  2  1  2  2  3  5  5  4
Clouds                    OV OV B2 B2 OV OV B2 B2 B2 B2 B1 B2 OV B2 B2 B2 B1 B1
PoP 12hr                     40          70          30           5           5
QPF 12hr                   0.01        0.24        0.04           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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    68      60    70      59    68      53    66
Temp          61 59 64 64   62 60 67 66   62 59 65 63   56 53 63 61
Dewpt         60 56 63 64   62 60 64 65   62 59 59 58   54 51 54 56
PWind dir        SE     S       S    SE      SE     N       N     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B2 OV OV   OV OV OV B2   B2 B2 B2 B1   SC SC SC SC
PoP 12hr          0    90      60    50      50    40      20    20
Rain shwrs           D  D    L  C  C  C    C  C  C  C    S  S  S  S
Tstms                C  S

$$
IAZ094-262100-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
127 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          71          60          72
Temp                      69 67 64 63 61 60 63 68 70 67 64 63 61 60 63 69 72 67
Dewpt                     67 66 64 63 61 60 63 66 66 66 64 63 61 60 61 62 63 64
RH                        93 97100100100100100 93 87 97100100100100 93 78 73 90
Wind dir                  SE SE SE SE SE SE SE SE  E NE  E  E  E  E  E SE SE  E
Wind spd                  11  8  6  6  6  5  5  4  5  4  4  3  3  4  4  6  5  4
Clouds                    B2 OV B2 B2 OV OV B2 B2 B2 B1 B1 B1 SC B1 B1 B1 B1 SC
PoP 12hr                     40          60          40          20           5
QPF 12hr                   0.01        0.08        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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          60    70      64    70      63    70      56    67
Temp          62 60 67 66   65 64 68 68   65 63 68 64   60 57 65 62
Dewpt         59 56 65 66   65 64 68 67   65 63 65 63   59 55 60 60
PWind dir        SE     S       S     S      SE     N      NE     E
Wind char        LT    GN      LT    LT      LT    GN      LT    LT
Avg clouds    SC B2 B2 OV   OV OV OV B2   B2 OV OV B2   B2 B1 B1 SC
PoP 12hr          0    80      90    70      80    60      40    30
Rain shwrs           C  D    D  L  L  L    D  L  L  C    C  C  C  S
Tstms                S  C    C             C  C  S  C    C        S

$$
IAZ017-262100-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
127 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          55          65          55          70
Temp                      60 60 57 57 56 55 59 63 64 63 59 58 57 57 61 68 70 66
Dewpt                     57 57 57 57 56 55 59 60 61 60 59 58 57 57 60 60 60 60
RH                        90 90100100100100100 90 90 90100100100100 97 76 71 81
Wind dir                  SE SE SE SE SE SE SE SE  E NE  E  E  E  E SE SE SE SE
Wind spd                  12  9  8  6  5  4  4  3  2  2  1  1  1  1  3  5  5  4
Wind gust                 24
Clouds                    B2 OV B2 OV OV OV B2 B2 B2 B2 B1 B2 B2 B2 B1 B1 B1 B1
PoP 12hr                     60          60          50           0           0
QPF 12hr                   0.03        0.10        0.07           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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          56    67      57    70      56    68      51    65
Temp          58 56 64 63   60 58 67 65   60 57 65 62   55 51 62 60
Dewpt         58 54 60 62   60 58 63 61   59 57 58 55   51 48 52 53
PWind dir        SE     S       S     S       S     N       N    NE
Wind char        LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B2 B2 OV   B2 B2 B2 B2   B2 B2 B2 B1   SC SC SC SC
PoP 12hr          0    80      60    40      50    40      20    20
Rain shwrs           L  D    L  C  C  C    C  C  C  C    S  S  S  S
Tstms                S  S

$$
IAZ049-262100-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
127 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          57          66          57          70
Temp                      61 60 58 57 57 57 60 63 66 64 60 59 58 57 62 67 70 66
Dewpt                     59 59 58 57 57 57 59 61 62 62 60 59 58 57 60 60 60 61
RH                        93 96100100100100 96 93 87 93100100100100 93 78 71 84
Wind dir                  SE SE SE SE SE SE SE SE  E  E  E  E  E  E  E SE SE SE
Wind spd                  11  9  6  5  5  4  4  3  3  3  2  2  2  2  2  3  4  3
Clouds                    B2 OV B2 B2 B2 B2 B2 B1 B2 B1 B1 B2 B1 B1 B1 B1 B1 SC
PoP 12hr                     40          50          40          10           5
QPF 12hr                   0.01        0.07        0.03           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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    68      61    69      60    68      53    66
Temp          58 57 65 63   62 61 67 67   62 60 66 64   56 53 63 62
Dewpt         57 54 61 63   62 61 64 64   62 60 61 58   55 52 56 56
PWind dir        SE     S       S     S       S     N       N     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC B1 B2 OV   OV B2 B2 OV   B2 B2 B2 B2   B1 SC SC SC
PoP 12hr          0    70      80    60      60    60      30    20
Rain shwrs           S  L    D  L  L  L    L  L  L  C    C  C  S  S
Tstms                   S    S                      S

$$
IAZ086-262100-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
127 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          71          59          72
Temp                      64 63 61 59 58 58 62 66 69 67 63 61 60 59 63 69 71 67
Dewpt                     62 61 60 59 58 58 61 63 64 64 63 61 60 59 61 62 62 63
RH                        93 93 97100100100 97 90 84 90100100100100 93 78 73 87
Wind dir                  SE SE SE SE SE SE SE SE  E NE  E  E  E  E  E SE SE  E
Wind spd                  10  8  6  5  5  4  4  4  3  3  3  2  2  2  3  3  3  2
Clouds                    B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC B1 B1 SC FW SC
PoP 12hr                     30          40          30           5           5
QPF 12hr                   0.01        0.06           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 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          59    72      64    72      64    72      57    68
Temp          60 59 69 67   65 65 68 69   66 64 68 67   60 57 65 64
Dewpt         58 55 64 67   65 65 68 68   66 64 66 64   60 57 61 61
PWind dir        SE     S       S     S       S    SW       N    NE
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC B2 B2   OV OV OV B2   B2 B2 OV B2   B2 B1 B1 SC
PoP 12hr          0    60      80    70      70    70      40    30
Rain shwrs           S  L    D  D  L  L    L  L  L  C    C  C  C  C
Tstms                   S    C             S  S  S  S    S

$$