Tabular State Forecast
Issued by NWS
Issued by NWS
505
FPUS63 KDMX 210920
SFTIA
IAZ001>099-212200-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 AM 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
Today Sat Sun Mon Tue Wed Thu
Aug 21 Aug 22 Aug 23 Aug 24 Aug 25 Aug 26 Aug 27
...WESTERN IOWA...
Spencer
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
/83 57/79 52/78 57/77 59/82 59/80 56/80
/00 00/00 00/00 60/60 10/20 20/10 00/10
Sioux City
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
/85 60/81 57/77 60/78 62/82 61/80 58/79
/00 10/00 00/10 60/60 10/20 20/20 10/10
Carroll
Sunny Sunny Ptcldy Shwrs Ptcldy Sunny Ptcldy
/86 61/81 57/78 60/77 61/83 63/82 60/81
/10 10/10 00/00 60/60 30/20 20/20 10/10
Atlantic
Sunny Sunny Ptcldy Shwrs Ptcldy Sunny Sunny
/84 62/80 58/77 61/77 62/81 63/79 60/79
/10 10/10 00/00 50/50 10/20 30/30 10/10
Shenandoah
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
/88 65/84 62/81 64/83 66/86 65/84 63/85
/20 10/10 00/00 40/40 10/10 30/20 10/10
...CENTRAL IOWA...
Mason City
Sunny Sunny Sunny Ptcldy Ptcldy Sunny Sunny
/82 59/78 54/77 56/76 59/81 62/80 59/80
/10 00/00 00/00 20/20 20/30 30/20 10/10
Fort Dodge
Sunny Sunny Ptcldy Shwrs Ptcldy Sunny Sunny
/85 61/81 55/79 60/77 61/83 63/82 59/81
/10 00/00 00/00 40/50 20/30 30/30 10/10
Ames
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
/86 63/81 58/78 61/77 62/82 64/82 62/81
/20 00/00 00/00 30/40 10/10 40/30 10/10
Marshalltown
Sunny Sunny Sunny Ptcldy Ptcldy Sunny Sunny
/84 61/80 56/78 58/76 60/82 63/81 60/80
/20 00/00 00/00 20/30 30/10 40/30 10/10
Des Moines
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
/86 66/82 60/79 64/77 64/82 66/82 64/81
/20 10/10 00/00 30/40 20/10 30/20 10/10
Creston
Sunny Sunny Ptcldy Tstrms Ptcldy Ptcldy Sunny
/85 64/81 60/79 63/78 64/82 65/81 63/81
/10 10/10 00/00 50/50 10/10 30/20 10/10
Lamoni
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Sunny
/85 65/82 61/79 63/78 65/82 66/82 64/82
/10 10/10 00/00 40/40 10/10 30/20 10/10
...EASTERN IOWA...
Decorah
Ptcldy Sunny Sunny Ptcldy Ptcldy Sunny Ptcldy
/82 61/78 56/76 56/75 59/79 63/79 60/78
/40 10/00 00/00 00/10 20/20 40/40 10/00
Oelwein
Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
/82 61/78 56/75 57/74 60/78 63/78 60/77
/30 20/00 00/00 10/10 20/20 40/40 20/10
Waterloo
Sunny Sunny Sunny Ptcldy Ptcldy Sunny Sunny
/84 62/79 57/77 58/75 61/80 64/80 61/79
/20 10/00 00/00 10/30 20/20 40/40 10/10
Dubuque
Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
/82 63/79 58/77 57/76 60/79 64/80 62/79
/40 60/00 00/00 00/10 10/10 50/50 10/10
Cedar Rapids
Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
/85 63/81 58/79 59/78 61/81 64/82 62/81
/20 20/00 00/00 00/10 10/10 30/30 10/10
Iowa City
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
/85 64/81 59/79 60/77 62/81 65/82 63/81
/20 30/00 00/00 00/10 10/10 30/30 10/10
Quad Cities
Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
/83 64/81 59/77 59/77 61/80 65/81 63/80
/40 60/00 00/00 00/10 10/10 30/30 10/10
Ottumwa
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Sunny
/86 65/82 59/79 61/78 63/81 66/82 64/81
/10 10/10 00/00 10/30 30/10 20/20 10/10
Burlington
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
/83 64/81 59/78 59/77 61/80 64/82 63/81
/10 20/00 00/00 00/20 20/10 30/30 20/10
Keokuk
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny
/84 66/81 61/77 61/76 63/81 66/82 64/81
/00 10/00 00/00 00/20 20/10 20/20 10/10
$$