21st Century Cooperative

	State Forecast for Cumberland , IA

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880
FPUS63 KDMX 180920
SFTIA
IAZ001>099-182200-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 AM CDT Tue Aug 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	Wed	Thu	Fri	Sat	Sun	Mon
Aug 18	Aug 19	Aug 20	Aug 21	Aug 22	Aug 23	Aug 24
...WESTERN IOWA...
Spencer
Ptcldy	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/79	56/78	55/80	59/82	58/78	56/77	58/79
/50	20/20	20/20	30/30	20/10	10/10	20/20
Sioux City
Ptcldy	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/79	61/78	59/80	62/83	61/79	60/78	62/79
/50	10/20	20/20	30/10	10/10	20/20	20/20
Carroll
Tstrms	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/80	62/78	59/80	63/84	63/79	60/78	61/79
/60	20/20	20/10	20/20	20/20	20/20	20/20
Atlantic
Tstrms	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/78	64/78	61/79	64/82	64/80	62/77	63/79
/60	20/20	20/10	20/20	20/20	20/20	20/20
Shenandoah
Ptcldy	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/83	67/81	64/83	66/86	67/84	65/83	66/84
/60	30/10	20/10	10/10	20/20	20/20	30/30
...CENTRAL IOWA...
Mason City
Ptcldy	Ptcldy	Sunny	Shwrs	Sunny	Ptcldy	Ptcldy
/77	58/77	57/79	61/81	60/77	57/76	59/77
/40	40/00	10/20	50/50	30/10	10/10	20/20
Fort Dodge
Tstrms	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/80	61/79	59/80	63/83	62/79	59/78	61/79
/50	20/20	20/20	40/40	30/10	10/20	20/20
Ames
Ptcldy	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/79	64/79	61/80	64/83	64/79	61/78	62/79
/40	30/10	20/10	20/20	30/30	10/20	20/20
Marshalltown
Ptcldy	Ptcldy	Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy
/79	61/78	58/79	61/81	62/78	58/77	60/78
/40	30/00	10/00	20/20	20/20	10/20	20/20
Des Moines
Tstrms	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/79	66/79	63/80	66/83	66/80	63/78	65/80
/50	30/10	20/10	20/20	30/30	10/20	20/20
Creston
Tstrms	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/80	65/79	63/80	65/84	66/81	63/79	64/81
/50	30/10	20/00	10/20	20/20	20/20	20/20
Lamoni
Shwrs	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/80	66/79	63/80	64/83	66/81	63/79	65/81
/50	50/20	20/00	10/20	20/20	10/20	30/30
...EASTERN IOWA...
Decorah
Ptcldy	Ptcldy	Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy
/77	59/77	57/78	61/80	61/77	57/75	59/77
/40	30/00	10/10	40/40	30/10	00/10	10/10
Oelwein
Ptcldy	Ptcldy	Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy
/77	61/76	58/77	62/79	62/75	59/74	60/75
/50	30/00	10/10	40/40	30/20	10/10	10/10
Waterloo
Ptcldy	Ptcldy	Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy
/78	62/77	59/78	63/81	63/77	59/76	61/77
/40	30/00	10/10	30/30	30/20	10/10	20/20
Dubuque
Ptcldy	Ptcldy	Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy
/79	63/78	59/79	62/80	64/78	60/76	61/77
/50	40/00	10/10	30/40	40/30	10/10	10/10
Cedar Rapids
Ptcldy	Ptcldy	Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy
/80	64/79	60/80	62/81	64/79	60/78	61/79
/40	40/00	10/00	20/30	30/30	10/10	20/20
Iowa City
Ptcldy	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/80	65/79	61/80	63/82	65/80	61/78	63/79
/40	40/00	10/00	20/30	30/30	10/10	20/20
Quad Cities
Ptcldy	Ptcldy	Sunny	Ptcldy	Sunny	Ptcldy	Ptcldy
/80	65/79	60/79	62/80	64/79	61/76	62/77
/40	40/10	10/00	20/40	40/40	10/10	10/10
Ottumwa
Tstrms	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/81	66/80	62/80	64/83	66/81	62/79	64/80
/50	40/10	10/10	10/20	30/30	10/10	20/20
Burlington
Ptcldy	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/81	66/79	62/79	62/81	65/80	61/78	62/78
/30	50/10	10/10	10/20	30/30	10/10	20/20
Keokuk
Ptcldy	Ptcldy	Sunny	Sunny	Sunny	Ptcldy	Ptcldy
/81	67/78	64/78	64/81	66/80	63/78	64/78
/20	70/50	10/10	10/10	20/20	00/10	20/20
$$

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Bryce Anderson – DTN Meteorologist

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Front Moving Through Central Plains, Great Lakes Tuesday

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Posted at 5:36AM Tue Aug 18, 2026 CDT

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