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State Forecast for Washington , IA
Change Zip Code: 
 
108
FPUS63 KDMX 152120
SFTIA
IAZ001>099-161000-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 PM CDT Fri May 15 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
SatSunMonTueWedThuFri
May 16May 17May 18May 19May 20May 21May 22
...WESTERN IOWA...
Spencer
PtcldyMocldyMocldyMocldyPtcldyPtcldyPtcldy
49/8354/8555/7745/6137/6441/7246/76
30/0080/8090/9090/3000/0010/1020/10
Sioux City
PtcldyPtcldyMocldyPtcldyPtcldyPtcldyPtcldy
52/8756/9054/7843/6238/6743/7448/78
20/1080/8080/8080/3000/1010/1020/20
Carroll
PtcldyTstrmsTstrmsPtcldyPtcldyPtcldyPtcldy
55/8558/8762/8650/6342/6644/7250/77
80/2090/9080/8080/4000/0000/1010/20
Atlantic
PtcldyShwrsTstrmsPtcldyPtcldyPtcldyPtcldy
58/8560/8863/8751/6443/6646/7251/77
80/3090/9070/7070/4000/0000/1020/20
Shenandoah
PtcldyPtcldyPtcldyPtcldyPtcldyPtcldyPtcldy
61/8863/9067/9053/6745/6847/7452/79
70/3040/4060/6070/4000/1000/1020/20
...CENTRAL IOWA...
Mason City
SunnyTstrmsTstrmsPtcldySunnyPtcldyPtcldy
51/8254/8358/8249/6339/6340/6946/74
90/0070/8080/9090/4000/0010/1020/10
Fort Dodge
PtcldyTstrmsTstrmsPtcldyPtcldyPtcldyPtcldy
55/8558/8661/8551/6541/6643/7249/76
80/2090/9080/9090/4000/0010/1020/10
Ames
PtcldyTstrmsTstrmsPtcldyPtcldyPtcldyPtcldy
57/8559/8663/8755/6844/6645/7250/75
90/3080/8080/8080/4010/0000/1020/20
Marshalltown
PtcldyTstrmsTstrmsPtcldySunnyPtcldyPtcldy
57/8359/8564/8555/6843/6643/7148/74
90/1070/7070/8080/5010/0000/1020/20
Des Moines
PtcldyTstrmsTstrmsPtcldyPtcldyPtcldyPtcldy
62/8564/8769/8858/6947/6848/7353/77
80/4070/7070/7070/5010/0000/1020/20
Creston
PtcldyShwrsTstrmsPtcldyPtcldyPtcldyPtcldy
61/8662/8867/8955/6544/6746/7252/77
70/3060/5060/6070/5010/1010/1020/20
Lamoni
PtcldyPtcldyTstrmsShwrsPtcldyPtcldyPtcldy
63/8663/8769/8858/6947/6848/7353/77
70/3050/4060/7070/5010/1010/1010/10
...EASTERN IOWA...
Decorah
PtcldyMocldyMocldyPtcldySunnyPtcldyPtcldy
58/8358/8265/8259/6645/6244/6750/73
80/0060/8070/8080/5020/0000/1010/10
Oelwein
SunnyMocldyPtcldyPtcldySunnyPtcldyPtcldy
58/8258/8364/8258/6744/6443/6849/73
90/1050/6070/9090/5010/0000/1010/10
Waterloo
SunnyTstrmsTstrmsPtcldySunnyPtcldyPtcldy
57/8358/8563/8456/6843/6543/7048/74
90/1060/6070/9090/5010/0000/1010/10
Dubuque
SunnyMocldyPtcldyPtcldySunnySunnySunny
61/8660/8666/8562/7147/6445/6949/74
80/1050/5050/9080/6030/0000/1010/10
Cedar Rapids
PtcldyPtcldyPtcldyPtcldySunnyPtcldySunny
61/8561/8766/8561/7147/6645/7150/76
90/2070/7050/9080/5020/0000/1010/10
Iowa City
PtcldyPtcldyPtcldyPtcldySunnyPtcldySunny
61/8661/8866/8661/7148/6746/7250/76
70/2060/6050/9070/6030/0000/1010/10
Quad Cities
PtcldyPtcldyPtcldyPtcldySunnySunnySunny
63/8662/8868/8664/7450/6748/7251/77
70/2060/6020/9090/6030/1000/1020/20
Ottumwa
PtcldyShwrsTstrmsShwrsSunnyPtcldyPtcldy
64/8763/8969/8863/7149/6848/7353/77
70/3060/6050/8070/6020/1010/1010/10
Burlington
PtcldyPtcldyPtcldyMocldyPtcldyPtcldyPtcldy
63/8562/8868/8764/7552/6949/7252/77
70/2050/5020/7070/6040/1010/1010/10
Keokuk
PtcldySunnyPtcldyMocldyPtcldyPtcldyPtcldy
64/8463/8870/8766/7553/6951/7254/77
60/2040/4020/7070/6030/1010/1020/20
$$
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DTN Weather Summary

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Bryce Anderson – DTN Meteorologist
Bio
Major Storm, Heavy Rain, Severe Weather for Central US This Weekend

Stalled boundary triggers central U.S. storms Friday; severe weather risk expands through the weekend.​​​​​​​​​​​​​​​​ » More DTN Weather Commentary
Posted at 12:12PM Fri May 15, 2026 CDT
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