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State Forecast for Washington , IA
Change Zip Code: 
 
299
FPUS63 KDMX 202120
SFTIA
IAZ001>099-211000-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 PM CDT Mon Apr 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
Apr 21Apr 22Apr 23Apr 24Apr 25Apr 26Apr 27
...WESTERN IOWA...
Spencer
SunnySunnyMocldySunnyPtcldyPtcldyPtcldy
43/7947/8456/7739/6234/5632/5835/58
00/0000/0020/6060/1010/1010/2030/30
Sioux City
SunnySunnyPtcldySunnyPtcldyPtcldyPtcldy
47/8553/8659/8041/6437/5534/6037/59
00/0000/0030/5050/1010/2020/3040/30
Carroll
SunnySunnyTstrmsPtcldyPtcldyPtcldyPtcldy
52/8252/8159/7545/6339/5937/5940/58
00/0000/0010/7070/2010/1020/3040/30
Atlantic
SunnySunnyTstrmsPtcldyPtcldyPtcldyMocldy
52/8154/7859/7544/6439/5938/5940/57
00/0010/0020/7070/2010/1020/4050/40
Shenandoah
SunnySunnyMocldyPtcldyPtcldyMocldyMocldy
53/8455/8060/7846/6641/6240/5941/58
00/0010/0020/7070/2020/2020/4050/40
...CENTRAL IOWA...
Mason City
SunnySunnyShwrsPtcldyPtcldyPtcldyPtcldy
45/7745/8057/7245/6238/5736/5839/57
00/0000/0000/5070/3010/1010/2030/30
Fort Dodge
SunnySunnyTstrmsPtcldyPtcldyPtcldyPtcldy
51/8050/8359/7545/6439/5837/5940/59
00/0000/0010/6060/2010/1010/2040/30
Ames
SunnySunnyTstrmsPtcldyPtcldyPtcldyPtcldy
51/8152/8059/7547/6541/6139/6142/60
00/0010/0010/6070/3010/1020/3040/40
Marshalltown
SunnySunnyMocldyPtcldyPtcldyPtcldyPtcldy
48/7849/7957/7547/6439/6139/6041/59
00/0000/0000/4080/4020/1020/3040/40
Des Moines
SunnySunnyTstrmsPtcldyPtcldyPtcldyMocldy
53/8156/8061/7549/6544/6342/6144/59
00/0010/0000/5070/4020/1020/3050/40
Creston
SunnySunnyTstrmsPtcldyPtcldyPtcldyMocldy
52/8154/7859/7446/6441/6140/5841/57
00/0010/0010/7070/3020/2020/4050/40
Lamoni
SunnySunnyTstrmsShwrsPtcldyPtcldyMocldy
53/8055/7660/7549/6643/6443/6245/60
00/0010/0000/5080/5020/1020/4050/40
...EASTERN IOWA...
Decorah
SunnySunnyPtcldyPtcldySunnyPtcldyPtcldy
46/7447/7560/7551/6241/5940/5842/57
00/0000/0000/3090/6010/1010/2030/30
Oelwein
SunnySunnyPtcldyPtcldyPtcldyPtcldyPtcldy
47/7649/7758/7450/6241/5940/5842/58
00/0000/0000/3090/6020/1010/2040/40
Waterloo
SunnySunnyMocldyShwrsPtcldyPtcldyPtcldy
49/7848/8060/7549/6441/6140/6043/59
00/0000/0000/4080/5010/1010/2040/30
Dubuque
SunnySunnyPtcldyPtcldyPtcldyPtcldyPtcldy
47/7649/7759/7856/6744/6342/6144/60
00/0000/0000/1080/8030/1010/2040/40
Cedar Rapids
SunnySunnyPtcldyPtcldyPtcldyPtcldyPtcldy
49/7852/7859/7753/6543/6242/6143/59
00/1010/0000/3090/7030/1020/2040/40
Iowa City
SunnySunnyPtcldyPtcldyPtcldyPtcldyPtcldy
49/7854/7858/7854/6644/6443/6145/60
00/1010/0000/2090/8030/1020/2040/40
Quad Cities
SunnySunnyPtcldyMocldySunnyPtcldyPtcldy
48/7755/7759/8057/6945/6545/6445/63
00/1010/0000/1090/9040/2020/2040/40
Ottumwa
SunnySunnyPtcldyShwrsPtcldyPtcldyMocldy
53/8056/7860/7752/6544/6443/6145/59
00/1010/0000/3090/7030/1020/3050/40
Burlington
SunnySunnyPtcldyMocldyPtcldyPtcldyMocldy
51/7857/7759/7957/7046/6746/6548/64
00/1020/0000/1090/9040/2020/2050/40
Keokuk
SunnySunnyPtcldyMocldyPtcldyPtcldyMocldy
53/7857/7760/8058/7047/6747/6650/65
00/1020/0000/2090/9040/2020/3050/50
$$
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Storm Moving Into West Tuesday

Showers continue Tuesday around Texas and a weak front will drop down into the Great Lakes with some isolated showers. » More DTN Weather Commentary

Posted at 12:23PM Mon Apr 20, 2026 CDT
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