Point Forecast Matrices
Issued by NWS Des Moines, IA

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Point Forecast Matrices
National Weather Service Des Moines IA
316 AM CST Sat Feb 21 2026

IAZ060-212200-
Des Moines-Polk IA
41.54N  93.65W Elev. 924 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      24          10          23           3          20
Temp             14 16 19 24 21 17 14 12 11 12 17 22 20 14  9  6  4  8 16 20 17
Dewpt            10 12 15 15 14 11  8  7  5  6  8 10  8  5  2  1 -1  2  6  8  6
RH               84 84 84 68 74 77 76 80 76 76 67 59 59 67 72 79 79 76 64 59 61
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW NW  N  N NW NW  N NW NW  S
Wind spd          5  6 10 11  8  9  9 11 12 16 16 16 10 10 10  9  8  5  5  3  2
Wind gust                                23    26
Clouds           B2 B2 B2 B2 B1 SC FW FW SC SC B1 SC FW FW FW FW FW FW FW FW SC
PoP 12hr                      5           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill        5  6  8 13 11  7  2 -2 -5 -5  2  9  9  1 -4 -8 -9 -2  8
Min chill         4     4     9     1    -6    -7     4    -5   -12    -8    10


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            10    42      27    42      23    44      29    54
Temp          11   21 37 39 32   28 39 38 30   24 39 41 33   32 50 49
Dewpt          5   11 29 30 27   26 29 27 24   20 26 27 26   25 31 30
PWind dir           S    SW       W    NW      NW    NW      SW    SW
Wind char          LT    GN      LT    GN      LT    LT      LT    GN
Avg clouds    SC   SC B2 B1 B1   B1 B1 SC B1   SC SC SC FW   FW SC SC
PoP 12hr            0     0       5    10      10    20      10     5
Rain                                               S
Snow                                               S

$$
IAZ039-212200-
Waterloo/Cedar Falls-Black Hawk IA
42.55N  92.40W Elev. 865 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      22           9          19           4          18
Temp             10 12 18 22 20 15 13 10  9 10 16 19 16 11  9  6  4  7 15 18 14
Dewpt             7 10 13 14 12  9  8  7  4  6  8  9  7  5  4  2  0  3  6  9  5
RH               87 91 80 71 71 77 80 87 80 83 70 64 67 76 80 83 83 83 67 67 67
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW  N NW NW SW
Wind spd          6 10 12 13 12 13 14 16 17 19 19 19 16 14 13 12 10  9  6  5  2
Wind gust                       24    27 27 29 29    26
Clouds           B1 B1 B2 B2 B2 B2 B1 B1 B1 SC B1 SC SC SC SC FW FW CL FW FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       -1  0  5  9  7  1 -3 -7 -9 -8 -2  3  0 -5 -6 -9-11 -6  5 10
Min chill        -4    -3     6    -5   -10   -11    -2    -8   -13   -11     6


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             7    35      23    36      16    34      22    44
Temp           8   15 30 33 27   24 32 31 24   17 30 29 25   25 40 40
Dewpt          5    9 23 28 25   23 26 24 20   16 22 23 21   22 31 31
PWind dir           S    SW       W    NW      NW    NW      SW    SW
Wind char          LT    GN      LT    GN      GN    GN      LT    GN
Avg clouds    SC   B1 B1 B1 B1   B1 B1 SC B1   SC SC SC SC   SC SC SC
PoP 12hr            0    10       5    20      20    10      10     5
Rain                                    S
Snow                                    S  S

$$
IAZ048-212200-
Ames-Story IA
41.99N  93.62W Elev. 936 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      23           9          21           2          19
Temp             11 15 19 22 20 16 12 10  9 11 17 21 17 10  7  4  2  6 15 19 14
Dewpt             8 11 14 15 13 10  7  6  4  6  8 10  8  4  2  0 -1  2  6  9  6
RH               87 84 80 74 74 77 80 83 80 80 67 62 67 76 79 83 87 83 67 64 70
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW NW  N NW NW  N  N NW  W  S
Wind spd          6  9 10 12  9 10 12 14 14 18 17 17 12 12 11 10  8  6  5  4  2
Wind gust                                25
Clouds           B1 B2 B2 B2 B1 SC FW FW SC SC SC FW FW FW FW FW FW FW FW FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill        1  3  7 10  9  3 -2 -7 -8 -7  2  7  4 -5 -9-11-12 -5  6 12
Min chill         0    -1     7    -3    -8    -9     3   -10   -14   -12     7


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             8    38      25    38      19    39      26    49
Temp           9   17 34 36 29   26 35 33 26   20 35 35 28   28 46 44
Dewpt          6   11 29 30 27   26 29 26 22   19 26 27 25   25 32 31
PWind dir           S    SW      NW    NW      NW    NW      SW    SW
Wind char          LT    GN      LT    GN      GN    GN      LT    GN
Avg clouds    SC   B1 B2 B1 B1   B1 B1 SC B1   SC SC SC FW   FW SC SC
PoP 12hr            0     0       5    20      10    20      10     5
Rain                                    S          S
Snow                                    S          S

$$
IAZ004-212200-
Estherville-Emmet IA
43.40N  94.75W Elev. 1315 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      22           5          19           1          26
Temp             11 14 19 22 18 14 10  8  6  8 16 19 14  8  6  3  2  6 18 25 22
Dewpt             6  6  6  6  6  6  4  2 -1  0  2  3  1 -1 -1 -3 -4 -3  1  4  5
RH               80 70 56 49 59 70 76 76 72 69 53 49 55 66 72 75 75 66 46 40 47
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW  N  N  N  N  N  N  S  S  S
Wind spd         10 12 14 17 14 18 19 19 19 21 23 24 19 18 13 11  9  5  5  9 10
Wind gust                             29 29 32 34 34
Clouds           B1 B1 B2 B1 SC SC B1 SC SC SC FW SC SC SC SC FW FW FW FW FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       -2  0  5  8  3 -3 -8-12-14-12 -2  1 -3-11-11-13-13 -4 10 16 11
Min chill        -3    -3     2   -10   -15   -16    -5   -12   -15   -13     9


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            15    47      24    41      18    44      27    53
Temp          16   20 41 41 29   25 37 35 23   19 40 39 30   30 50 47
Dewpt          6   10 23 28 24   20 21 20 17   14 23 25 22   20 28 26
PWind dir           S     W      NW    NW       N     W      SW     W
Wind char          GN    GN      GN    BZ      GN    GN      GN    BZ
Avg clouds    SC   B1 B1 SC B1   B1 SC SC B1   SC SC SC SC   FW FW FW
PoP 12hr            0     5      10    20      20    10       5     5
Rain                                 S  S  S
Snow                                 S  S  S

$$
IAZ035-212200-
Fort Dodge-Webster IA
42.55N  94.18W Elev. 1165 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      24           8          22           1          19
Temp             12 14 20 23 20 15 11 10  8 12 18 21 16 10  6  3  2  6 15 19 14
Dewpt             9 10 11 12 10  8  6  5  2  4  7  8  5  3  1 -1 -3  1  5  8  6
RH               87 84 67 62 64 73 80 80 76 70 61 56 61 73 79 83 79 79 64 61 70
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW  N  N  N  N  N  N NW SW  S
Wind spd          6  9 11 11 10 11 13 14 14 18 17 17 13 12 10  9  6  5  3  4  5
Wind gust                       21 24 25 25
Clouds           B1 B2 B2 B2 B1 SC FW SC SC SC SC FW FW SC SC FW FW CL FW FW FW
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill        1  3  8 12  9  1 -5 -7 -9 -6  3  7  2 -5 -9-12-11 -4    12  6
Min chill         0     0     8    -6   -11   -12     2   -10   -13   -11     5


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            10    42      24    41      18    41      26    50
Temp          11   17 36 36 29   25 36 35 25   19 37 36 30   28 47 44
Dewpt          7   12 28 30 26   23 26 25 20   17 25 26 24   24 31 29
PWind dir           S    SW      NW    NW       N     W      SW    SW
Wind char          LT    GN      LT    GN      GN    GN      LT    GN
Avg clouds    SC   B1 B1 B1 B1   B1 B1 SC B1   SC FW SC FW   FW FW SC
PoP 12hr            0     0       5    20      20    10      10     5
Rain                                    S  S
Snow                                    S  S    S

$$
IAZ094-212200-
Lamoni-Decatur IA
40.63N  93.90W Elev. 1125 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      29          10          25           5          27
Temp             19 21 26 29 24 19 17 14 11 13 22 24 22 18 13  8  5 10 21 27 24
Dewpt            12 13 13 13 13 12  9  6  5  5  5  7  6  6  3  1 -1  1  3  5  5
RH               74 71 57 51 62 74 70 70 76 70 47 47 49 59 63 72 76 66 45 38 43
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW NW NW  N  N  N  N  N NW  S
Wind spd          5  6 10 12 11 10 12 13 14 17 16 16 11 10 11 10  9  6  5  4  2
Wind gust                       20 23 24    27 26 26
Clouds           B2 B1 B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW CL CL FW FW FW
PoP 12hr                     10           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       11 11 16 19 13  8  4 -1 -5 -4  7 11 10  6 -1 -7 -9 -1 13
Min chill         7    10    12     3    -7    -8     8    -1   -10    -8    17


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            17    51      31    51      26    49      31    63
Temp          18   22 45 46 37   32 48 45 35   27 45 45 35   33 57 57
Dewpt          5   10 26 29 29   28 31 28 26   24 27 26 26   25 30 28
PWind dir           S    SW       W    NW      NW    NW      SW    SW
Wind char          LT    GN      LT    GN      GN    GN      LT    GN
Avg clouds    SC   B1 B1 B2 B1   B1 B1 B1 B1   SC FW FW FW   FW FW FW
PoP 12hr            0     0       0    10      10    20      10     5
Rain                                               S  S

$$
IAZ017-212200-
Mason City-Cerro Gordo IA
43.16N  93.33W Elev. 1189 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      21           6          18           3          20
Temp             12 15 19 21 18 13 11  8  7  9 15 18 14 10  8  5  4  7 15 20 15
Dewpt             7  8  9  9  8  6  5  4  2  3  5  6  4  3  1  0 -1  1  4  8  6
RH               80 73 64 59 64 73 76 83 79 76 64 59 64 73 72 79 79 76 61 59 67
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW NW NW  N  N  N  N NW SW  S
Wind spd         10 12 13 16 14 17 18 19 19 21 21 21 18 17 13 11  9  6  4  5  5
Wind gust                       27
Clouds           B1 B1 B2 B2 B2 B2 B1 B1 SC SC SC SC B1 B1 SC FW FW FW FW FW SC
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       -1  1  5  7  3 -4 -7-11-13-11 -3  1 -3 -8 -8-11-11 -5  8 11  5
Min chill        -3    -2     0    -8   -14   -15    -5   -10   -13   -11     4


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             9    39      22    37      15    36      24    45
Temp          10   15 33 33 29   23 33 31 22   16 33 32 28   27 42 41
Dewpt          6    9 23 28 25   21 23 22 17   14 23 25 23   22 30 31
PWind dir           S    SW      NW    NW      NW     W      SW    SW
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC B1 B1 B1   B1 SC SC SC   SC SC FW FW   FW FW FW
PoP 12hr            5     5      10    20      20    10      10     5
Rain                                    S
Snow                                    S  S    S

$$
IAZ049-212200-
Marshalltown-Marshall IA
42.11N  92.91W Elev. 972 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      21           8          18           2          16
Temp              8 13 18 20 18 14 11 10  9  9 15 18 15  9  7  4  2  6 13 16 12
Dewpt             4  9 13 14 12  8  6  6  3  5  8  9  6  3  2  0 -1  2  6  9  4
RH               83 84 80 77 77 76 80 83 76 83 73 67 67 76 79 83 87 83 73 73 70
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW  N NW NW SW
Wind spd          6  9 11 13 10 12 13 14 14 18 19 18 13 13 12 11  9  8  5  4  2
Wind gust                                25       28
Clouds           B1 B1 B2 B2 B2 B1 SC FW SC SC B1 SC SC FW SC FW FW CL FW FW FW
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill       -3  1  5  7  6  0 -5 -7 -8-10 -2  2  0 -7 -9-12-13 -7  4  9
Min chill        -9    -4     5    -5    -9   -11    -2   -10   -15   -13     5


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max             5    36      23    36      17    36      23    46
Temp           7   15 31 33 27   24 32 31 24   18 32 32 26   27 43 42
Dewpt          5    9 25 28 25   23 26 25 20   18 25 25 22   23 31 30
PWind dir           S    SW       W    NW      NW    NW      SW    SW
Wind char          LT    GN      LT    GN      GN    LT      LT    GN
Avg clouds    SC   B1 B1 B1 B1   B1 B1 SC B1   SC SC SC FW   FW SC SC
PoP 12hr            0     5       5    20      20    20      10     5
Rain                                    S             S
Snow                                       S

$$
IAZ086-212200-
Ottumwa-Wapello IA
41.11N  92.45W Elev. 836 ft
316 AM CST Sat Feb 21 2026

Date             Sat 02/21/26            Sun 02/22/26            Mon 02/23/26
CST 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
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                      28          12          23           7          25
Temp             17 20 25 28 23 20 17 14 12 14 20 23 20 15 12  9  7 12 22 25 22
Dewpt            11 12 12 13 14 13  9  7  5  5  6  7  7  4  3  2  2  3  4  5  6
RH               77 71 57 53 68 74 70 73 73 67 54 50 56 61 66 72 79 66 45 42 49
Wind dir         NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW  N NW NW NW
Wind spd          8 10 13 14 13 11 13 16 17 20 20 19 16 14 13 12 11 10  9  8  4
Wind gust                       21 25 27 28 31    31 26 25
Clouds           B1 B2 B1 B1 B1 B1 FW FW SC SC SC SC SC FW SC SC FW CL CL CL FW
PoP 12hr                      5           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Wind chill        6  8 13 16 11  8  3 -2 -6 -4  4  8  6 -1 -4 -6 -8 -1 12 16 16
Min chill         4     6     9     1    -6    -7     4    -5    -9    -8    12


Date               Tue 02/24/26  Wed 02/25/26  Thu 02/26/26  Fri 02/27/26
CST 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            13    48      30    48      24    45      29    61
Temp          14   20 43 43 35   30 45 42 31   25 42 41 32   31 56 55
Dewpt          4    6 22 27 27   27 28 26 23   21 24 26 25   25 30 28
PWind dir           S    SW       W    NW      NW    NW      SW    SW
Wind char          LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    FW   B1 B2 B1 SC   SC B1 SC SC   SC SC FW FW   FW SC SC
PoP 12hr            0     0       5    10      10    20      10     5
Rain                                               S  S

$$