Tabular State Forecast
Issued by NWS
Issued by NWS
381
FPUS63 KDMX 172121
SFTIA
IAZ001>099-181000-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 PM CDT Thu Sep 17 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
Fri Sat Sun Mon Tue Wed Thu
Sep 18 Sep 19 Sep 20 Sep 21 Sep 22 Sep 23 Sep 24
...WESTERN IOWA...
Spencer
Mocldy Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy
58/76 60/69 53/63 49/59 46/62 45/65 50/68
90/90 60/50 50/50 60/60 30/10 10/10 30/30
Sioux City
Ptcldy Mocldy Mocldy Mocldy Mocldy Mocldy Mocldy
64/86 64/73 58/64 55/60 51/64 51/66 55/70
70/40 50/40 40/40 50/60 30/10 10/30 40/40
Carroll
Mocldy Shwrs Shwrs Shwrs Mocldy Mocldy Mocldy
64/84 68/79 60/67 56/61 52/62 50/66 55/70
50/40 80/70 60/70 60/60 30/10 00/10 30/40
Atlantic
Ptcldy Shwrs Shwrs Shwrs Mocldy Ptcldy Mocldy
66/85 69/79 62/67 57/61 53/62 51/65 56/68
20/10 60/60 70/60 60/50 40/10 00/20 40/40
Shenandoah
Ptcldy Ptcldy Mocldy Mocldy Mocldy Mocldy Mocldy
69/88 70/84 64/70 60/64 56/64 53/67 58/71
10/10 60/60 70/60 50/40 20/20 00/20 40/40
...CENTRAL IOWA...
Mason City
Tstrms Shwrs Shwrs Shwrs Ptcldy Ptcldy Ptcldy
58/68 62/70 56/63 51/58 48/60 46/64 51/67
40/80 90/70 60/50 60/60 40/20 00/10 20/20
Fort Dodge
Tstrms Shwrs Shwrs Shwrs Mocldy Ptcldy Ptcldy
62/78 66/76 59/65 55/60 51/62 49/66 54/69
80/80 80/70 60/60 60/60 40/20 00/10 30/30
Ames
Tstrms Shwrs Tstrms Shwrs Mocldy Ptcldy Mocldy
63/80 68/80 61/67 57/61 53/61 50/66 55/69
50/60 80/80 70/70 70/60 40/30 00/10 30/30
Marshalltown
Tstrms Shwrs Tstrms Shwrs Mocldy Ptcldy Ptcldy
62/76 67/80 60/66 54/60 51/61 48/65 53/68
40/70 70/70 70/70 60/60 40/30 00/00 20/30
Des Moines
Mocldy Tstrms Tstrms Shwrs Mocldy Ptcldy Mocldy
66/83 71/81 63/68 58/61 55/61 52/65 57/68
40/40 60/60 80/70 60/60 40/30 00/10 30/40
Creston
Ptcldy Tstrms Tstrms Shwrs Mocldy Ptcldy Ptcldy
66/85 69/82 64/69 59/61 55/60 51/64 57/68
20/10 60/60 70/70 70/60 30/10 00/10 30/40
Lamoni
Ptcldy Ptcldy Tstrms Shwrs Mocldy Ptcldy Ptcldy
67/85 70/83 65/71 60/62 54/60 51/64 56/68
10/10 40/40 70/70 70/70 20/20 20/10 20/30
...EASTERN IOWA...
Decorah
Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy Ptcldy
57/66 60/71 57/64 52/60 48/60 46/65 51/67
10/80 90/90 70/50 50/50 40/20 10/00 10/20
Oelwein
Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy Ptcldy
60/70 64/76 60/64 55/60 51/60 48/65 53/67
20/70 90/90 80/60 60/60 40/20 10/00 10/20
Waterloo
Tstrms Shwrs Tstrms Shwrs Ptcldy Ptcldy Ptcldy
61/72 66/78 60/66 55/61 51/61 48/66 53/69
30/70 80/80 70/60 60/60 40/30 00/00 10/20
Dubuque
Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy Ptcldy
62/71 65/78 63/66 57/63 53/62 51/67 54/69
10/40 90/90 80/70 60/60 40/20 10/10 10/10
Cedar Rapids
Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy Ptcldy
64/75 68/81 64/68 58/62 54/62 51/66 55/69
20/50 70/70 80/80 60/60 50/30 10/00 10/20
Iowa City
Mocldy Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy
65/77 68/82 65/70 59/63 55/62 51/67 56/70
20/40 60/70 80/80 70/60 50/30 00/00 10/20
Quad Cities
Mocldy Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy
64/76 67/82 64/70 58/64 54/63 51/68 54/70
10/40 50/80 80/80 60/70 50/30 10/00 10/10
Ottumwa
Tstrms Shwrs Tstrms Shwrs Mocldy Ptcldy Ptcldy
67/82 71/84 66/72 60/64 56/62 52/67 56/70
30/60 40/50 80/80 70/60 30/20 00/10 10/20
Burlington
Mocldy Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy
66/82 69/85 66/75 60/66 55/63 51/68 55/71
20/50 30/30 80/80 70/60 50/30 20/00 10/10
Keokuk
Mocldy Mocldy Mocldy Mocldy Mocldy Ptcldy Ptcldy
69/85 72/88 69/78 63/68 58/65 54/70 58/72
30/40 10/20 70/70 60/60 40/30 00/10 10/20
$$