Skip to main content
One weather site to rule them all
checkweather.io

Iowa weather today

We follow 82 towns and cities in Iowa, each with NWS, American, European side by side and the days they disagree flagged. Today the three models put highs between 65°F in Cedar Rapids and 71°F in Sioux City, and no model gives a 50% or higher chance of rain in any of the 13 places we hold today's forecast for.

Numbers from the forecast run of Saturday, October 3. Open any town for the live, hour-by-hour comparison.

Weather in Iowa's largest cities today

consensus of NWS, American, European, forecast run of Saturday, October 3
CityTodayHigh / lowRain chanceTomorrowModels agree
Des MoinesClear68°F / 48°F3%Mostly clear, 66°FHigh (4°F apart)
Cedar RapidsMostly clear65°F / 47°F5%Mostly clear, 66°FHigh (3°F apart)
DavenportClear67°F / 47°F2%Mostly clear, 68°FHigh (2°F apart)
Sioux CityClear71°F / 51°F3%Mostly clear, 67°FHigh (2°F apart)
Iowa CityMostly clear66°F / 47°F3%Mostly clear, 67°FHigh (3°F apart)
WaterlooMostly clear66°F / 47°F34%Mostly clear, 65°FHigh (4°F apart)
AmesMostly clear67°F / 47°F4%Mostly clear, 65°FHigh (3°F apart)
West Des MoinesClear68°F / 48°F3%Cloudy, 67°FHigh (3°F apart)
Council BluffsMostly clear69°F / 50°F2%Mostly clear, 67°FHigh (3°F apart)
DubuqueMostly clear65°F / 46°F19%Partly cloudy, 65°FHigh (2°F apart)
AnkenyClear67°F / 47°F3%Mostly clear, 66°FHigh (3°F apart)
UrbandaleClear67°F / 48°F3%Mostly clear, 66°FHigh (3°F apart)
Cedar FallsMostly clear66°F / 47°F31%Mostly clear, 65°FHigh (4°F apart)

Rain chance is the highest of the three models. "Models agree" compares their forecast highs, the same confidence rule as on every city page.

Iowa weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts in Iowa…

Today across Iowa

from the latest model run, Saturday, October 3

Warmest and coldest use the average of NWS, American, European. "Rain most certain" ranks by the lowest chance among the models that give one (at least two), so a place only makes the list when they agree, and only from 30%. One place per area, so the list spreads across the state.

The past week across Iowa

analysed, the seven days September 22 to September 28

Estimates from NASA POWER (GEOS-IT weather analysis, FLASHFlux satellite sunlight), not forecasts or station readings. Warmest and coolest are the average daily high. "Sunniest" is the sunlight that reached the ground as a share of what a clear sky would give at that latitude and date (FAO-56 clear-sky formula, approximate). Each value covers an area of about 50 km around the town, so one town per area. Rain is left out because weekly rain estimates differ too much between data sources to rank them honestly. The week ends a few days back because the sunlight data arrives with a delay.

Which forecast is most accurate in Iowa?

Over the last 30 days we graded the models in 18 Iowa cities against the recorded weather. The European model was most accurate in 18 of them. No model wins everywhere, which is why each city page names its own winner.

How we grade: the US accuracy scoreboard and our method.

Iowa climate, city by city

Across the 50 Iowa places we hold long-run averages for, typical July highs run from 80°F in Mason City to 85°F in Keokuk, and January highs from 23°F in Sioux Center to 35°F in Keokuk. Mount Pleasant is the wettest at about 37 in of precipitation a year, Council Bluffs the driest at about 28 in.

CityJan highJul highWettest monthRain per year
Des Moines30°F84°FJuly35 in
Cedar Rapids30°F82°FApril33 in
Davenport32°F84°FMarch32 in
Sioux City25°F84°FJune31 in
Iowa City31°F82°FJuly35 in
Waterloo29°F81°FMay32 in
Ames29°F82°FJuly36 in
West Des Moines30°F84°FJuly33 in
Council Bluffs31°F85°FJuly28 in
Dubuque31°F82°FApril36 in
Ankeny29°F83°FJuly33 in
Urbandale29°F83°FJuly32 in
Cedar Falls29°F81°FJune33 in
Marion30°F82°FJuly34 in
Bettendorf32°F84°FMarch32 in

Averages from ERA5 reanalysis, the same source as the climate tables on each city page.

All 82 places in Iowa

every town and city we cover, A to Z

Common questions

What is the weather in Iowa today?
Today the three models put highs between 65°F in Cedar Rapids and 71°F in Sioux City, and no model gives a 50% or higher chance of rain in any of the 13 places we hold today's forecast for. Open any town on this page for the live, hour-by-hour comparison.
Where is it warmest in Iowa today?
Sioux City has the highest forecast high of the 13 Iowa places we hold today's forecast for, near 71°F. Cedar Rapids is the coolest, near 65°F.
Which weather forecast is most accurate in Iowa?
Over the last 30 days we graded the models in 18 Iowa cities against the recorded weather. The European model was most accurate in 18 of them.
What is the climate like in Iowa?
Across the 50 Iowa places we hold long-run averages for, typical July highs run from 80°F in Mason City to 85°F in Keokuk, and January highs from 23°F in Sioux Center to 35°F in Keokuk. Mount Pleasant is the wettest at about 37 in of precipitation a year, Council Bluffs the driest at about 28 in.

More US weather