FPUS63 KDMX 230920 SFTIA IAZ001>099-232200- Tabular State Forecast for Iowa National Weather Service Des Moines IA 420 AM CDT Sun Aug 23 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 Mon Tue Wed Thu Fri Sat Aug 23 Aug 24 Aug 25 Aug 26 Aug 27 Aug 28 Aug 29 ...WESTERN IOWA... Spencer Ptcldy Ptcldy Ptcldy Sunny Sunny Ptcldy Ptcldy /79 55/78 59/84 60/81 55/80 54/80 58/80 /00 50/50 10/10 10/00 00/00 10/20 50/50 Sioux City Ptcldy Mocldy Ptcldy Sunny Sunny Ptcldy Ptcldy /78 61/78 63/83 62/81 57/80 60/80 62/80 /20 50/60 10/20 10/10 00/10 20/30 60/60 Carroll Ptcldy Shwrs Ptcldy Sunny Sunny Ptcldy Ptcldy /80 60/78 63/84 65/84 61/82 60/81 63/81 /10 50/50 00/10 10/10 00/00 10/20 30/40 Atlantic Ptcldy Shwrs Ptcldy Sunny Sunny Ptcldy Ptcldy /78 62/78 63/82 65/83 61/81 61/80 64/81 /10 50/50 00/10 20/20 00/00 10/20 40/40 Shenandoah Ptcldy Ptcldy Ptcldy Sunny Sunny Ptcldy Ptcldy /80 64/81 65/85 68/86 63/84 64/83 67/84 /10 40/40 10/00 20/20 00/00 20/20 40/40 ...CENTRAL IOWA... Mason City Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /78 54/78 59/83 63/82 58/81 56/81 59/79 /00 10/10 00/20 20/10 00/00 00/10 30/40 Fort Dodge Ptcldy Ptcldy Ptcldy Sunny Sunny Ptcldy Ptcldy /81 59/80 62/84 64/84 59/83 59/82 62/81 /00 40/40 00/10 20/20 00/00 00/10 30/40 Ames Ptcldy Ptcldy Ptcldy Sunny Sunny Ptcldy Ptcldy /79 59/79 62/83 66/85 62/82 61/82 63/81 /00 20/40 00/10 20/20 00/00 00/10 30/40 Marshalltown Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /78 55/79 59/82 64/83 61/81 59/81 61/80 /00 10/30 00/10 20/20 00/00 00/10 20/30 Des Moines Ptcldy Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /79 62/79 65/84 68/85 65/83 64/82 66/83 /00 30/40 00/10 10/10 10/00 00/10 30/40 Creston Ptcldy Ptcldy Ptcldy Sunny Sunny Ptcldy Ptcldy /80 63/80 65/84 67/85 64/82 64/82 66/83 /00 30/40 00/10 20/20 00/00 10/20 30/40 Lamoni Ptcldy Shwrs Ptcldy Sunny Sunny Ptcldy Ptcldy /80 61/79 63/84 67/85 65/83 63/82 65/82 /00 20/50 00/10 10/10 10/00 10/20 30/30 ...EASTERN IOWA... Decorah Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /75 52/77 57/79 63/81 61/80 56/79 59/77 /00 00/00 00/10 40/30 10/00 00/10 20/40 Oelwein Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /75 55/76 60/79 64/80 62/78 60/78 61/77 /00 00/10 00/20 30/30 10/00 00/10 20/30 Waterloo Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /77 56/78 61/81 65/82 62/80 59/8062/79 /00 00/10 00/10 30/30 10/00 00/10 20/30 Dubuque Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /76 55/78 59/80 64/82 63/80 61/79 61/78 /00 00/00 00/10 40/40 20/10 10/10 10/20 Cedar Rapids Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /79 57/81 61/82 65/84 64/82 61/82 63/81 /00 00/10 00/10 30/30 20/00 00/10 20/30 Iowa City Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /79 57/80 61/82 66/85 65/83 62/82 64/81 /00 00/10 00/00 30/20 20/00 00/10 20/30 Quad Cities Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /78 56/80 60/81 65/84 64/81 62/81 63/80 /00 00/00 00/00 30/30 30/00 00/00 10/20 Ottumwa Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /81 59/81 63/85 68/86 65/84 63/83 65/83 /00 00/30 00/10 20/20 20/00 00/10 30/40 Burlington Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /78 56/79 59/81 65/84 64/82 62/81 63/81 /00 00/00 00/00 10/20 20/00 00/00 10/30 Keokuk Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /78 59/78 63/81 67/85 66/82 64/81 65/81 /00 00/00 00/00 10/20 20/00 00/10 10/30 $$