State Forecast for Cedar Rapids , IA
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240
FPUS63 KDMX 182120
SFTIA
IAZ001>099-191000-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 PM 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
 
FCSTFCSTFCSTFCSTFCSTFCSTFCST
WedThuFriSatSunMonTue
Aug 19Aug 20Aug 21Aug 22Aug 23Aug 24Aug 25
...WESTERN IOWA...
Spencer
PtcldySunnySunnySunnyMocldyPtcldyPtcldy
57/7957/8260/8258/7955/7757/8160/83
30/2010/4040/1020/2010/2020/2010/10
Sioux City
PtcldySunnySunnySunnyMocldyPtcldyPtcldy
63/7860/8362/8361/7960/7761/8063/82
10/3020/1040/1020/2020/2020/2010/10
Carroll
PtcldySunnySunnySunnyMocldyPtcldyPtcldy
63/7959/8264/8462/8059/7761/8163/83
20/3020/2030/3020/2010/2020/2020/10
Atlantic
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
65/7861/8164/8364/8061/7863/8164/82
20/4020/1020/2030/3010/3020/2010/10
Shenandoah
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
68/8263/8567/8767/8665/8367/8668/87
20/3020/0020/1030/3010/3030/2010/10
...CENTRAL IOWA...
Mason City
PtcldySunnySunnySunnyPtcldyPtcldySunny
58/7858/8061/8160/7755/7558/7861/81
30/0010/2040/3020/2000/1020/2010/10
Fort Dodge
PtcldyPtcldySunnySunnyPtcldyPtcldyPtcldy
61/8059/8263/8362/8058/7760/8163/83
20/1010/2040/4020/2010/2020/2010/10
Ames
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
64/8060/8264/8464/8060/7861/8164/83
20/1010/1030/3020/2010/2020/2010/10
Marshalltown
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
62/7958/8063/8262/7957/7659/7961/81
20/1010/1020/2020/2000/2020/2010/10
Des Moines
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
67/7963/8267/8365/8062/7764/8166/83
20/1010/0030/3020/2010/2020/2010/10
Creston
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
66/8062/8266/8566/8362/8064/8366/85
20/4020/0010/1030/3010/3030/3010/10
Lamoni
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
67/8063/8265/8566/8363/8065/8366/84
20/4030/0010/1030/3010/2030/3010/10
...EASTERN IOWA...
Decorah
PtcldySunnyPtcldySunnyPtcldyPtcldyPtcldy
60/7757/7862/7961/7757/7458/7661/80
50/0000/2050/5040/1000/1010/2010/10
Oelwein
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
61/7659/7763/7962/7658/7359/7562/78
50/0010/1050/5020/2000/1020/2010/10
Waterloo
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
62/7858/8064/8162/7858/7560/7862/80
40/1010/1030/3020/2000/1020/2010/10
Dubuque
PtcldySunnyPtcldySunnyPtcldyPtcldyPtcldy
64/7859/7963/8063/7859/7560/7762/80
50/1000/0030/3030/2000/1020/2020/10
Cedar Rapids
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
64/8159/8163/8263/8059/7760/8063/82
40/1010/0020/3030/2000/1020/2020/10
Iowa City
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
65/8160/8264/8364/8161/7861/8064/82
40/1010/0020/3030/2000/1020/2020/10
Quad Cities
PtcldySunnyPtcldySunnyPtcldyPtcldyPtcldy
65/8060/8163/8164/7960/7760/7963/81
40/1010/0020/3030/2020/1010/2020/10
Ottumwa
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
66/8162/8265/8565/8261/7963/8265/84
30/2010/0010/2030/3000/2020/2010/10
Burlington
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
67/8061/8063/8264/8061/7761/8064/81
30/3020/0010/2030/2000/1020/2010/10
Keokuk
PtcldySunnySunnySunnyPtcldyPtcldyPtcldy
68/7963/8064/8366/8162/7863/8066/82
30/3010/0010/2030/2000/1020/2010/10
$$
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Front Continues to Push Through Corn Belt Wednesday
Posted at 11:59AM Tue Aug 18, 2026 CDT
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