CheckWeather US›Mason City
Mason City weather
Loading live data…The weather map: all three models at once
NWS, American, European side by side around Mason City and nearby towns.Live rain radar →Loading the three model maps…
Next 14 hours
consensus of the three models7-day forecast
where the models agree, and where they splitMason City, IA is at its warmest in Jun (average highs near 81°F) and coldest in Jan (lows around 15°F), with roughly 34 in of precipitation across the year. Below, compare what NWS, American, European forecast for Mason City right now, and see exactly where they disagree.
Mason City climate by month
average daytime high and overnight low across a typical yearJan
27°
15°
Feb
40°
19°
Mar
46°
26°
Apr
59°
39°
May
73°
52°
Jun
81°
62°
Jul
80°
63°
Aug
81°
64°
Sep
77°
59°
Oct
64°
47°
Nov
47°
32°
Dec
37°
24°
Which forecast is most accurate in the US?
CheckWeather Score — graded against the weather that actually happened
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 Mason City today?
On this page we show what NWS, American, European each forecast for Mason City 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 Mason City today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Mason City 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 Mason City?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Mason City 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 Mason City?
Jun is typically the warmest month in Mason City, with average highs around 81°F.
How cold does Mason City get?
The coldest month in Mason City is Jan, when overnight lows average about 15°F.
How much rain does Mason City get?
Mason City 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.