955  
FPUS63 KDMX 172120  
SFTIA  
IAZ001>099-181000-  
 
TABULAR STATE FORECAST FOR IOWA  
NATIONAL WEATHER SERVICE DES MOINES IA  
420 PM CDT WED SEP 17 2025  
 
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  
THU FRI SAT SUN MON TUE WED  
SEP 18 SEP 19 SEP 20 SEP 21 SEP 22 SEP 23 SEP 24  
   
..WESTERN IOWA
 
 
SPENCER  
TSTRMS SHWRS PTCLDY PTCLDY PTCLDY PTCLDY SUNNY  
60/79 57/74 55/78 56/81 57/82 52/75 51/77  
60/50 50/50 40/30 20/30 30/20 20/10 10/10  
 
SIOUX CITY  
MOCLDY PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY SUNNY  
61/77 56/74 57/78 59/80 60/81 54/76 53/78  
60/40 30/30 30/30 20/30 20/20 20/20 10/10  
 
CARROLL  
TSTRMS SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
62/81 59/79 57/82 60/83 59/84 57/78 55/80  
50/50 50/50 30/20 20/30 30/20 20/20 10/10  
 
ATLANTIC  
TSTRMS PTCLDY PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
62/78 57/74 57/79 60/79 60/79 55/74 53/76  
40/50 50/40 20/20 20/30 30/20 20/20 10/10  
 
SHENANDOAH  
TSTRMS PTCLDY PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
62/78 57/77 57/80 61/81 61/82 57/79 54/79  
40/50 50/20 20/20 30/30 30/20 20/20 10/10  
   
..CENTRAL IOWA
 
 
MASON CITY  
PTCLDY TSTRMS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
61/81 60/76 58/78 59/80 59/79 55/75 52/75  
50/40 60/60 60/30 30/40 40/20 20/10 10/10  
 
FORT DODGE  
MOCLDY SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
63/82 60/77 58/82 61/84 61/82 57/77 55/79  
60/40 70/70 40/20 20/30 30/20 20/20 10/10  
 
AMES  
TSTRMS SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
63/82 62/78 59/81 61/83 61/82 57/78 55/79  
50/50 70/70 40/20 20/40 40/30 20/20 10/10  
 
MARSHALLTOWN  
PTCLDY TSTRMS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
62/83 62/77 58/80 60/82 60/82 57/77 53/78  
50/40 60/60 50/20 20/40 40/30 30/20 20/10  
 
DES MOINES  
TSTRMS SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
65/83 64/77 61/82 64/83 64/82 60/77 57/79  
50/50 60/60 40/20 20/30 30/30 20/20 10/10  
 
CRESTON  
TSTRMS SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
63/81 59/77 58/80 61/81 61/82 57/77 55/78  
60/50 50/50 20/20 20/30 30/30 20/20 10/10  
 
LAMONI  
TSTRMS SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
63/82 61/76 58/80 62/81 62/80 58/77 56/78  
70/60 50/50 30/20 20/30 30/30 30/20 20/10  
   
..EASTERN IOWA
 
 
DECORAH  
PTCLDY SHWRS PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY  
64/80 62/74 60/75 61/77 61/77 57/73 55/72  
40/30 50/50 50/40 40/40 40/40 30/30 20/10  
 
OELWEIN  
PTCLDY SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
63/82 62/77 59/79 61/80 61/79 57/75 54/75  
30/30 50/50 50/40 30/40 40/40 30/30 20/10  
 
WATERLOO  
PTCLDY TSTRMS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
63/84 62/79 59/80 61/82 61/82 57/78 55/78  
50/30 50/60 60/30 30/40 40/30 20/20 20/10  
 
DUBUQUE  
PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY  
63/85 64/80 62/81 62/81 63/81 60/77 58/76  
10/10 30/40 40/40 30/30 50/40 30/30 20/10  
 
CEDAR RAPIDS  
PTCLDY SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
62/86 63/79 60/83 62/83 62/82 59/79 56/78  
20/20 50/50 50/30 30/40 40/40 30/30 20/10  
 
IOWA CITY  
PTCLDY SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
64/87 64/80 61/84 62/83 62/83 59/80 57/79  
20/20 40/50 50/30 20/30 40/40 30/30 20/10  
 
QUAD CITIES  
PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY SUNNY  
63/89 64/83 62/84 62/84 62/83 60/81 58/79  
10/10 30/40 40/40 30/30 50/40 40/30 20/10  
 
OTTUMWA  
PTCLDY SHWRS PTCLDY PTCLDY PTCLDY SUNNY SUNNY  
63/87 63/80 60/83 62/83 62/82 59/79 55/79  
50/40 70/70 60/30 30/40 40/40 30/30 20/10  
 
BURLINGTON  
PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY PTCLDY SUNNY  
63/89 64/81 62/84 63/84 63/82 60/81 58/80  
10/10 30/40 40/30 20/30 40/40 30/30 20/10  
 
KEOKUK  
PTCLDY SHWRS PTCLDY PTCLDY PTCLDY PTCLDY SUNNY  
64/88 64/79 62/83 63/83 64/82 61/80 58/79  
10/10 40/50 50/30 30/30 40/40 40/30 20/10  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IA Page Main Text Page