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State Forecast for Washington , IA
Change Zip Code: 
 
995
FPUS63 KDMX 100921
SFTIA
IAZ001>099-102200-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
421 AM CDT Mon Aug 10 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
TodayTueWedThuFriSatSun
Aug 10Aug 11Aug 12Aug 13Aug 14Aug 15Aug 16
...WESTERN IOWA...
Spencer
PtcldyPtcldyPtcldyMocldyMocldyMocldyMocldy
/8465/8663/8461/7556/7258/7456/73
/1060/4030/3050/5030/4050/5030/30
Sioux City
PtcldyPtcldyPtcldyMocldyMocldyMocldyPtcldy
/8768/8867/8664/7460/7361/7559/74
/1050/1030/3070/7040/4050/5030/30
Carroll
PtcldyPtcldyPtcldyTstrmsTstrmsTstrmsPtcldy
/8870/9168/8866/7761/7763/7962/77
/1050/3040/4070/7060/6060/6030/30
Atlantic
PtcldyPtcldyPtcldyTstrmsTstrmsShwrsPtcldy
/8872/8969/8667/7763/7765/7964/77
/1030/2030/3080/8070/7050/5040/40
Shenandoah
PtcldyPtcldyPtcldyMocldyMocldyPtcldyPtcldy
/9176/9473/9071/8267/8168/8367/79
/2020/2020/2070/7070/7050/5040/40
...CENTRAL IOWA...
Mason City
PtcldyTstrmsPtcldyTstrmsMocldyShwrsPtcldy
/8366/8465/8464/7659/7459/7659/75
/2060/6030/3020/5030/4060/6040/30
Fort Dodge
PtcldyPtcldyPtcldyTstrmsMocldyShwrsPtcldy
/8669/9068/8766/7861/7562/7861/77
/2050/4040/4050/7050/4060/6030/30
Ames
PtcldyPtcldyPtcldyTstrmsTstrmsShwrsPtcldy
/8771/8969/8667/7764/7765/7964/78
/2040/4040/4060/8050/5060/6040/40
Marshalltown
PtcldyTstrmsPtcldyTstrmsTstrmsShwrsPtcldy
/8570/8768/8566/7762/7663/7863/76
/2030/5040/4050/7060/5060/6040/40
Des Moines
PtcldyPtcldyPtcldyTstrmsTstrmsTstrmsPtcldy
/8974/9172/8770/7766/7767/8066/78
/2010/3040/4070/8070/7060/6040/40
Creston
PtcldyPtcldyPtcldyTstrmsTstrmsShwrsPtcldy
/8974/9271/8969/7965/7967/8166/79
/2020/3030/3080/8080/8050/5030/30
Lamoni
PtcldyPtcldyPtcldyTstrmsTstrmsPtcldyPtcldy
/9076/9273/8970/8066/8068/8267/80
/2010/2030/3070/7080/8050/4040/40
...EASTERN IOWA...
Decorah
PtcldyMocldyPtcldyMocldyPtcldyMocldyPtcldy
/8366/8366/8364/7760/7560/7561/75
/1030/6030/3010/4040/3050/5030/30
Oelwein
PtcldyPtcldyPtcldyMocldyMocldyMocldyPtcldy
/8368/8367/8366/7562/7462/7563/75
/2020/7030/3020/6060/4060/6030/30
Waterloo
PtcldyTstrmsPtcldyTstrmsMocldyShwrsPtcldy
/8469/8668/8567/7762/7562/7763/76
/2040/6030/3030/6060/4060/6040/40
Dubuque
PtcldyMocldyPtcldyMocldyMocldyMocldyPtcldy
/8469/8568/8567/7862/7662/7764/77
/3030/7030/2010/6060/4060/6040/40
Cedar Rapids
PtcldyPtcldyPtcldyMocldyMocldyPtcldyPtcldy
/8671/8769/8668/7964/7864/7965/78
/3020/6040/4040/7070/5060/6040/40
Iowa City
PtcldyPtcldyPtcldyMocldyMocldyPtcldyPtcldy
/8772/8870/8669/7965/7865/8066/78
/3020/5030/5050/7070/6060/6030/30
Quad Cities
PtcldyPtcldyPtcldyMocldyMocldyMocldyPtcldy
/8671/8770/8568/7964/7764/8066/78
/3030/6040/5040/7070/6060/6030/30
Ottumwa
PtcldyPtcldyTstrmsTstrmsTstrmsTstrmsPtcldy
/9075/9272/8970/8066/8067/8367/81
/2010/2040/6070/8080/8060/6030/30
Burlington
PtcldyPtcldyPtcldyMocldyMocldyPtcldyPtcldy
/8873/9071/8669/7965/7866/8267/80
/3010/2040/6060/8080/8060/6020/20
Keokuk
PtcldyPtcldyPtcldyMocldyMocldyPtcldyPtcldy
/8975/9274/8871/8067/7968/8369/81
/3020/1030/4070/8080/8050/5020/20
$$
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DTN Weather Summary

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Bryce Anderson – DTN Meteorologist
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Damaging Storms Possible in the Upper Midwest This Afternoon

Scattered showers, storms for the Upper Midwest. Heavier rain Friday night into Saturday morning for portions of the Delta. » More DTN Weather Commentary
Posted at 12:27PM Fri Aug 7, 2026 CDT
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