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Marshalltown weather

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The weather map: all three models at once

NWS, American, European side by side around Marshalltown and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

7-day forecast

where the models agree, and where they split

Marshalltown, IA is at its warmest in Jun (average highs near 82°F) and coldest in Jan (lows around 16°F), with roughly 34 in of precipitation across the year. Below, compare what NWS, American, European forecast for Marshalltown right now, and see exactly where they disagree.

Marshalltown climate by month

average daytime high and overnight low across a typical year
Jan
29°
16°
Feb
43°
22°
Mar
48°
29°
Apr
62°
41°
May
74°
53°
Jun
82°
63°
Jul
81°
64°
Aug
82°
65°
Sep
78°
59°
Oct
66°
48°
Nov
49°
34°
Dec
39°
26°

Which forecast is most accurate in the US?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
Behind Apple Weather, Windy
88
/100rank #1
85±1.5°F96±1.2 mph8592% hitECMWF — European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
Behind Windy & many free apps
74
/100rank #2
82±1.8°F92±2.6 mph5374% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.

Common questions

What's the weather in Marshalltown today?
On this page we show what NWS, American, European each forecast for Marshalltown today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Marshalltown today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Marshalltown and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Marshalltown?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Marshalltown forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Marshalltown?
Jun is typically the warmest month in Marshalltown, with average highs around 82°F.
How cold does Marshalltown get?
The coldest month in Marshalltown is Jan, when overnight lows average about 16°F.
How much rain does Marshalltown get?
Marshalltown sees roughly 34 in of precipitation a year, with Jul usually the wettest month.

The forecasts Americans check

The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.

NWSNational Weather Service
Open model · shown above ✓AWAccuWeather
Closed model · open ↗↗TWCThe Weather Channel
Closed model · open ↗↗

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