Tabular State Forecast
Issued by NWS
Issued by NWS
629
FPUS63 KDMX 212120
SFTIA
IAZ001>099-221000-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 PM CDT Fri Aug 21 2026
ROWS INCLUDE...
Daily predominant daytime weather 6AM-6PM
Forecast temperatures...early morning low/daytime high
Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM
- indicates temperatures below zero
MM indicates missing data
FCST FCST FCST FCST FCST FCST FCST
Sat Sun Mon Tue Wed Thu Fri
Aug 22 Aug 23 Aug 24 Aug 25 Aug 26 Aug 27 Aug 28
...WESTERN IOWA...
Spencer
Sunny Ptcldy Mocldy Ptcldy Sunny Ptcldy Ptcldy
58/80 52/79 59/78 60/83 60/82 57/81 59/81
00/00 00/00 60/60 20/20 20/20 00/10 40/40
Sioux City
Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy Ptcldy
61/81 57/77 62/79 64/82 62/81 61/80 62/80
00/00 00/10 70/70 20/20 30/20 10/10 40/40
Carroll
Sunny Ptcldy Shwrs Ptcldy Sunny Ptcldy Ptcldy
62/82 57/79 62/78 63/83 64/83 62/82 63/82
00/00 00/00 50/50 20/20 20/20 10/10 40/40
Atlantic
Sunny Ptcldy Shwrs Ptcldy Sunny Ptcldy Ptcldy
63/81 58/78 63/78 64/82 64/82 62/81 63/82
10/00 00/00 50/50 10/20 30/30 10/10 40/40
Shenandoah
Sunny Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
66/85 62/81 66/83 67/86 68/86 66/85 67/86
20/10 00/10 50/50 10/10 40/20 10/10 40/40
...CENTRAL IOWA...
Mason City
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
61/79 54/78 58/76 61/82 63/82 60/81 61/81
00/00 00/00 10/20 20/20 30/20 10/10 20/20
Fort Dodge
Sunny Ptcldy Mocldy Ptcldy Sunny Ptcldy Ptcldy
62/82 55/80 61/78 62/83 63/83 61/82 62/82
00/00 00/00 40/40 20/20 20/20 10/10 30/30
Ames
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
64/82 58/79 62/78 64/83 65/83 63/82 64/82
00/00 00/00 30/40 20/20 20/20 20/10 30/30
Marshalltown
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
62/81 56/79 59/77 61/82 64/83 61/81 62/82
00/00 00/00 20/20 10/20 30/30 00/10 20/20
Des Moines
Sunny Ptcldy Shwrs Ptcldy Sunny Sunny Ptcldy
66/82 60/79 65/78 65/83 67/84 66/82 66/83
00/00 00/00 30/50 20/20 30/20 20/10 30/30
Creston
Sunny Ptcldy Shwrs Ptcldy Sunny Sunny Ptcldy
65/83 60/80 65/80 65/84 67/84 65/83 66/84
10/00 00/00 40/50 10/10 30/20 20/10 30/30
Lamoni
Sunny Ptcldy Mocldy Ptcldy Ptcldy Sunny Ptcldy
65/83 61/80 65/79 65/83 67/84 65/83 66/83
10/10 00/00 40/40 10/10 30/30 10/10 20/20
...EASTERN IOWA...
Decorah
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
62/78 56/75 56/75 60/79 63/81 61/80 61/79
00/00 00/00 00/10 20/20 40/40 10/20 20/20
Oelwein
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
62/78 56/75 58/74 61/78 64/80 62/79 62/79
00/00 00/00 00/10 20/20 40/40 10/10 20/20
Waterloo
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
63/79 57/77 59/76 62/80 64/82 62/80 62/81
00/00 00/00 00/10 20/20 40/40 10/10 20/20
Dubuque
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
63/80 58/77 57/77 61/79 65/82 63/80 63/80
50/00 00/00 00/00 20/20 30/30 10/10 10/10
Cedar Rapids
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
64/82 58/80 59/78 62/81 65/83 63/82 63/82
20/00 00/00 00/10 20/20 30/30 10/10 10/20
Iowa City
Sunny Sunny Ptcldy Ptcldy Sunny Sunny Ptcldy
64/82 59/80 60/78 63/81 66/84 64/83 64/82
20/00 00/00 00/10 10/20 30/30 10/10 10/20
Quad Cities
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
63/81 59/78 59/77 62/80 65/82 63/81 64/81
60/00 00/00 00/00 10/10 30/30 20/10 10/20
Ottumwa
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
65/84 59/81 63/78 64/83 67/84 65/83 65/83
10/00 00/00 10/30 10/10 20/20 10/10 10/20
Burlington
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
64/81 59/79 59/77 62/80 65/82 64/82 64/81
20/00 00/00 00/10 10/10 20/20 20/20 20/20
Keokuk
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
66/82 61/79 62/77 64/81 67/83 65/82 66/82
10/10 10/00 00/20 10/10 20/20 20/10 10/20
$$