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	State Forecast for Ottosen , IA

Change Zip Code:

917
FPUS63 KDMX 200920
SFTIA
IAZ001>099-202200-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 AM CDT Thu Aug 20 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	Fri	Sat	Sun	Mon	Tue	Wed
Aug 20	Aug 21	Aug 22	Aug 23	Aug 24	Aug 25	Aug 26
...WESTERN IOWA...
Spencer
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/82	59/82	56/79	52/78	56/78	59/83	59/81
/10	20/00	00/00	00/10	40/40	20/20	20/20
Sioux City
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/82	63/84	61/80	58/77	61/79	63/82	62/81
/10	20/10	10/10	00/20	50/50	20/20	20/20
Carroll
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/82	65/85	63/80	58/77	61/78	62/83	64/82
/00	10/00	10/10	00/10	40/40	10/20	20/20
Atlantic
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/80	64/83	63/79	59/76	61/78	63/81	64/80
/00	00/20	40/40	00/10	40/40	10/10	20/20
Shenandoah
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/83	67/87	66/84	62/80	64/83	65/86	66/85
/00	00/00	50/50	00/20	30/30	10/10	20/20
...CENTRAL IOWA...
Mason City
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Sunny
/81	63/81	60/78	55/77	57/77	60/81	62/81
/00	20/00	10/10	00/00	20/20	30/30	20/20
Fort Dodge
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/82	64/83	61/80	55/78	59/78	62/82	62/82
/00	20/00	10/10	00/00	20/20	20/20	30/20
Ames
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/82	65/84	63/80	58/78	60/78	62/82	64/82
/00	10/10	20/10	00/00	10/20	10/20	20/20
Marshalltown
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/81	63/83	61/79	56/77	57/76	60/81	62/80
/00	10/10	10/10	00/00	10/10	20/20	20/20
Des Moines
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/82	67/85	65/80	61/78	63/78	64/82	66/82
/00	10/10	20/20	00/00	20/20	10/10	20/20
Creston
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/81	66/85	65/80	61/78	63/79	65/83	66/82
/00	00/10	40/40	00/10	30/30	10/10	20/20
Lamoni
Ptcldy	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/81	65/85	65/81	61/78	62/79	64/83	66/83
/00	00/10	40/40	00/10	30/30	10/10	20/20
...EASTERN IOWA...
Decorah
Sunny	Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy
/79	63/81	59/78	55/76	56/75	59/80	62/80
/00	20/20	00/00	00/00	00/10	20/20	30/20
Oelwein
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/79	64/81	62/77	57/74	58/74	61/78	63/78
/00	20/10	00/00	00/00	10/10	20/20	30/20
Waterloo
Sunny	Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy
/81	65/82	63/78	57/76	59/75	62/80	64/80
/00	20/10	10/10	00/00	10/10	20/20	20/20
Dubuque
Sunny	Ptcldy	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy
/80	64/82	63/79	59/76	58/76	61/79	65/80
/00	20/60	20/00	00/00	00/10	10/20	30/20
Cedar Rapids
Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/81	65/84	63/80	59/78	59/78	62/82	65/82
/00	10/40	10/00	00/00	10/10	10/10	20/20
Iowa City
Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/81	65/84	64/81	60/79	60/78	63/82	65/82
/00	10/50	20/00	00/00	10/10	10/10	20/20
Quad Cities
Sunny	Ptcldy	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy
/81	64/82	64/80	59/77	59/77	61/80	64/81
/00	10/50	50/10	00/00	00/10	10/10	30/30
Ottumwa
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/82	66/85	65/81	61/79	62/79	64/83	66/83
/00	00/20	20/20	00/00	10/20	10/10	10/10
Burlington
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/80	62/83	64/80	60/78	59/77	62/81	64/82
/00	00/10	30/20	00/00	00/10	10/10	20/20
Keokuk
Sunny	Sunny	Sunny	Ptcldy	Ptcldy	Ptcldy	Ptcldy
/80	65/84	66/80	62/78	62/77	64/81	66/82
/00	00/10	30/10	00/00	00/10	10/10	20/20
$$

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DTN Weather Summary

Bryce Anderson – DTN Meteorologist

Bio

Front Moving Into Tennessee Valley Thursday, Next System Enters Northern Plains

» More DTN Weather Commentary

Posted at 11:54AM Wed Aug 19, 2026 CDT

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