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State Forecast for Washington , IA
Change Zip Code: 
 
336
FPUS63 KDMX 202120
SFTIA
IAZ001>099-211000-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 PM CDT Mon Jul 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
 
FCSTFCSTFCSTFCSTFCSTFCSTFCST
TueWedThuFriSatSunMon
Jul 21Jul 22Jul 23Jul 24Jul 25Jul 26Jul 27
...WESTERN IOWA...
Spencer
SunnyPtcldyPtcldyPtcldyPtcldySunnySunny
65/8054/7854/8158/7960/8967/9668/90
00/0000/0000/1020/2000/0000/0010/10
Sioux City
SunnyMocldyPtcldyMocldySunnySunnySunny
70/8659/8059/8060/7863/9170/9872/95
10/0000/1010/3040/4000/0000/0010/10
Carroll
SunnyPtcldyPtcldyPtcldySunnySunnySunny
69/8458/7957/8060/7762/8868/9671/94
40/0000/0000/2040/4000/0000/0010/10
Atlantic
SunnyPtcldyPtcldyShwrsSunnySunnyPtcldy
71/8460/7759/7660/7662/8768/9472/94
30/1000/1010/3060/6000/0000/0010/10
Shenandoah
SunnyPtcldyMocldyMocldyPtcldySunnyPtcldy
73/8663/8062/7762/7663/8769/9372/92
20/1000/1010/5070/7010/0000/0020/10
...CENTRAL IOWA...
Mason City
SunnySunnySunnyPtcldySunnySunnySunny
66/7855/7554/7959/7860/8667/9369/89
20/0000/0000/0010/1000/0010/1020/20
Fort Dodge
SunnyPtcldyPtcldyPtcldySunnySunnySunny
68/8257/7956/8160/7961/8968/9771/94
30/0000/0000/0030/3000/0000/0010/10
Ames
SunnyPtcldyPtcldyPtcldySunnySunnySunny
70/8359/7857/8061/7862/8968/9671/93
50/0000/0000/1030/3000/0000/0010/10
Marshalltown
SunnySunnySunnyPtcldySunnySunnySunny
69/8058/7555/7859/7860/8667/9370/91
60/0000/0000/0020/2000/0000/0010/10
Des Moines
SunnyPtcldyPtcldyPtcldySunnySunnySunny
72/8462/7960/8063/7864/9070/9673/94
50/0000/0000/2040/4000/0000/0010/10
Creston
SunnyPtcldyPtcldyShwrsSunnySunnySunny
72/8461/7860/7861/7563/8668/9372/92
50/3000/0010/3060/6000/0000/0020/10
Lamoni
SunnyPtcldyPtcldyTstrmsSunnySunnySunny
73/8563/7961/7862/7463/8768/9372/93
30/2000/0000/2060/6010/0000/0010/10
...EASTERN IOWA...
Decorah
PtcldySunnySunnyPtcldySunnySunnySunny
68/7755/7255/7759/7761/8368/9070/87
50/0000/0000/0000/1010/0000/1030/30
Oelwein
SunnySunnySunnyPtcldySunnySunnySunny
68/7856/7354/7759/7760/8366/9070/88
50/0000/0000/0010/1000/0000/0020/20
Waterloo
SunnySunnySunnyPtcldySunnySunnySunny
69/8057/7554/7959/7860/8567/9270/90
50/0000/0000/0010/1000/0000/0020/20
Dubuque
SunnySunnySunnyPtcldySunnySunnySunny
70/8259/7756/8059/7961/8667/9270/89
50/0000/0000/0000/1000/0000/0020/20
Cedar Rapids
SunnySunnySunnyPtcldySunnySunnySunny
70/8259/7755/8059/7861/8667/9370/91
50/0000/0000/0010/2000/0000/0020/20
Iowa City
SunnySunnySunnyPtcldySunnySunnySunny
71/8360/7756/8060/7861/8667/9371/92
50/0000/0000/0010/2000/0000/0020/20
Quad Cities
SunnySunnySunnyPtcldySunnySunnySunny
72/8460/7757/8060/7861/8667/9271/91
60/0000/0000/0000/2020/0000/0020/20
Ottumwa
SunnySunnySunnyPtcldySunnySunnySunny
72/8461/7957/8061/7762/8868/9572/94
60/1000/0000/1030/3020/0000/0010/10
Burlington
SunnySunnySunnyPtcldySunnySunnySunny
73/8462/7757/7960/7662/8567/9272/91
60/3000/0000/0020/2020/0000/0010/10
Keokuk
SunnySunnySunnyPtcldySunnySunnySunny
75/8563/7858/7961/7662/8568/9273/92
50/5000/0000/0020/3020/1000/0010/10
$$
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DTN Weather Summary

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Bryce Anderson – DTN Meteorologist
Bio
Front Continues Through Corn Belt Tuesday

» More DTN Weather Commentary
Posted at 12:04PM Mon Jul 20, 2026 CDT
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