FPUS63 KDMX 180921 SFTIA IAZ001>099-182200- Tabular State Forecast for Iowa National Weather Service Des Moines IA 421 AM CDT Mon May 18 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 Tue Wed Thu Fri Sat Sun May 18 May 19 May 20 May 21 May 22 May 23 May 24 ...WESTERN IOWA... Spencer Mocldy Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy /65 43/58 35/63 39/65 44/69 47/74 51/82 /70 90/00 00/00 00/10 30/40 40/20 30/20 Sioux City Mocldy Ptcldy Ptcldy Ptcldy Mocldy Ptcldy Ptcldy /63 43/59 35/63 41/66 44/71 47/77 52/85 /80 90/00 00/00 00/20 40/40 40/30 20/10 Carroll Mocldy Mocldy Ptcldy Mocldy Mocldy Ptcldy Ptcldy /77 48/60 40/62 43/64 46/70 49/76 54/84 /40 90/00 00/00 00/20 30/40 30/30 30/30 Atlantic Tstrms Mocldy Ptcldy Mocldy Mocldy Ptcldy Ptcldy /79 49/60 41/61 44/63 47/70 50/77 55/83 /50 90/00 00/00 00/30 40/40 20/10 30/20 Shenandoah Mocldy Ptcldy Ptcldy Mocldy Mocldy Ptcldy Ptcldy /81 50/62 42/62 45/65 49/72 52/78 57/85 /50 90/00 00/00 10/30 50/50 20/10 30/10 ...CENTRAL IOWA... Mason City Mocldy Mocldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy /75 47/59 39/61 41/63 43/67 46/74 50/81 /30 90/40 00/00 00/10 30/40 40/30 20/10 Fort Dodge Mocldy Mocldy Ptcldy Mocldy Ptcldy Ptcldy Ptcldy /76 49/61 41/63 44/64 45/70 48/76 53/84 /40 90/10 00/00 00/20 30/40 30/30 20/20 Ames Mocldy Mocldy Ptcldy Mocldy Ptcldy Ptcldy Ptcldy /80 52/63 42/63 44/64 47/70 50/77 55/84 /30 90/20 00/00 00/20 30/30 30/10 20/20 Marshalltown Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy /80 53/63 41/62 43/64 46/70 48/77 53/83 /30 80/40 00/00 00/20 30/30 30/10 10/10 Des Moines Tstrms Mocldy Ptcldy Mocldy Ptcldy Ptcldy Ptcldy /81 55/63 46/63 48/65 50/71 53/78 58/85 /50 90/20 00/00 00/20 30/30 20/10 20/20 Creston Tstrms Mocldy Ptcldy Mocldy Mocldy Ptcldy Ptcldy /81 52/62 42/61 45/64 49/71 51/77 57/84 /50 90/00 00/00 00/30 40/40 20/10 20/10 Lamoni Tstrms Mocldy Ptcldy Ptcldy Mocldy Ptcldy Ptcldy /81 55/63 45/62 46/64 50/72 52/78 57/84 /80 90/20 00/00 00/40 40/40 20/10 20/10 ...EASTERN IOWA... Decorah Mocldy Mocldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy /78 55/62 44/61 44/62 47/67 51/74 55/80 /30 90/40 00/00 00/00 20/40 40/20 20/10 Oelwein Mocldy Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy /79 55/63 42/61 43/63 45/68 49/75 54/81 /40 80/40 00/00 00/00 30/30 30/20 20/10 Waterloo Mocldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy Ptcldy /80 53/64 42/63 44/64 45/69 49/76 53/82 /30 80/30 00/00 00/00 30/30 30/20 20/10 Dubuque Mocldy Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy /81 63/72 46/64 44/66 47/70 51/77 55/83 /50 80/30 00/00 00/00 30/30 20/10 10/10 Cedar Rapids Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Sunny /81 60/69 45/64 45/66 48/71 51/78 56/84 /60 80/30 00/00 00/10 40/40 20/10 10/10 Iowa City Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Sunny /82 61/70 46/65 45/67 49/72 52/79 56/85 /60 90/30 00/00 00/10 40/40 20/10 10/10 Quad Cities Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy /82 65/75 48/66 45/68 49/72 53/79 57/85 /70 90/40 00/00 00/00 40/40 20/10 10/10 Ottumwa Tstrms Mocldy Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy /81 60/68 46/65 46/67 51/73 53/79 58/86 /70 90/30 00/00 00/20 40/40 20/10 10/10 Burlington Mocldy Mocldy Ptcldy Ptcldy Mocldy Ptcldy Ptcldy /80 65/75 49/67 47/69 51/73 54/80 57/85 /80 80/50 10/00 00/10 40/40 30/10 10/10 Keokuk Mocldy Mocldy Ptcldy Ptcldy Mocldy Ptcldy Ptcldy /80 66/74 51/66 49/68 53/72 56/79 59/85 /80 80/50 10/00 00/10 40/40 30/20 10/10 $$