Weather is the category where the honest answer is almost anticlimactic: the free app already on your phone is probably the one you should use. The forecast itself — the actual data about whether it’ll rain tomorrow — comes from a small number of underlying models and sources that most apps draw on, so the difference between a free weather app and a paid one is rarely the accuracy of the forecast. It’s the presentation: how nice the maps look, whether there are ads, how much personality the app has, and which specific features the developer decided to charge for.
That makes “best free weather app” a question about which apps give you a clean, complete forecast without ads or a subscription wall — and which ones use weather as the hook for a paid upgrade. The green badge means the core job (a reliable forecast with the views you’d actually check) works indefinitely, free, with no card. The good news is that the best options clear it easily. The catch, where it exists, is ads or a beloved-but-gated app whose best parts cost money.
How to judge a “free” weather app
The thing the phone communities land on is that for daily use, the built-in weather app is usually enough, and the endless app-store alternatives mostly compete on polish rather than substance. The regulars in r/iphone note that Apple Weather quietly became good after Apple folded in the Dark Sky technology — the same hyperlocal, next-hour-precipitation engine weather nerds used to pay for is now baked into the free system app. Over in r/android, the conversation is more fragmented because the default varies by phone, but the same principle holds: the free options are plenty, and the paid ones are about taste.
So the test for this page is narrow and easy to apply yourself: open the app, find tomorrow’s hourly forecast and any severe-weather alerts, and see what’s blocked. If the rain timeline, the alerts, and a clean daily view are all there without ads burying them or a “Premium” badge greying them out, that’s a real free weather app. If the genuinely useful parts are gated, it’s a teaser.
Why Apple Weather leads on “free” (for iPhone users)
For the large slice of readers on an iPhone, Apple Weather is the easy headline, and the reason is the same as for the built-in password manager and the built-in antivirus: it’s already there, free, and — now — genuinely good. It gives hyperlocal forecasts, next-hour precipitation (the “it’ll start raining in 12 minutes” feature that used to be Dark Sky’s paid party trick), severe-weather alerts, air quality, and rich hourly and ten-day views, with no ads and no card, because it’s a system app.
The reason it tops the list isn’t favouritism toward what’s pre-installed — it’s that it removes the entire shopping problem for most people. You don’t need to evaluate anything. The forecast you’d check is right there, ad-free, and the data underneath it is the same well-regarded engine the enthusiasts respect. The honest limit is simply that it’s Apple-only — there’s no Android or web version — so it can’t be a universal answer. Who it’s not for: Android users (obviously), and weather enthusiasts who want dense model data, custom charts, or a personality-driven app, which the built-in one deliberately keeps simple.
The other two that are genuinely free
Windy is the standout free pick for anyone who wants to see the weather rather than just read it, and it earns ✅ outright. Its animated maps of wind, rain, temperature, and storms are the best free weather visualisation anywhere — useful for sailors, pilots, cyclists, and anyone tracking a storm, and free on both the web and mobile. The free version is the real product; only niche pro extras (higher-resolution maps, extra model overlays) are paid. It pairs perfectly with a simple daily-forecast app: Apple Weather or your phone’s default for the quick check, Windy when you want the full picture. Who it’s not for: people who just want a plain “will it rain today” answer and find the maps to be overkill.
Pirate Weather is the technically-minded ✅, and it’s a slightly different kind of entry. When Dark Sky shut its public forecast service down, Pirate Weather rose up as a free, open forecast data source — a drop-in replacement that several free apps and dashboards now use under the hood. It’s not a polished consumer app you’d hand your parents; you feel it through the free, ad-free apps it powers, and through community projects. But as a genuinely free, privacy-respecting backbone for forecasts — no ads, no card for normal use — it earns its place, and it’s the answer for the r/android crowd who want a clean data source rather than an ad-funded app. Who it’s not for: non-technical users who just want to install one finished app and never think about where the data comes from.
The ad-heavy one, and the one that isn’t free
AccuWeather earns a 🟡 rather than a ✅, and it’s a fair, narrow knock: the forecasts are detailed and genuinely free to use — including its well-known minute-by-minute rain feature — but the free experience is notably ad-heavy, and what paying mostly buys you is the removal of those ads. That’s a real free tier with a real cost-of-attention, which is exactly the middle badge’s job. Who it’s not for (free): anyone who can’t stand a busy, ad-filled interface around their forecast.
Carrot Weather needs a careful badge, because it’s one of the most fun weather apps there is — the snarky commentary has a devoted following, and the customisation is deep. But on this list the verdict is 🔒, and not as an insult: the free version is a teaser, and the features people actually buy it for — hyperlocal data, advanced charts, custom complications, premium data sources, and the good notifications — sit behind a subscription. If you love the personality and want the full thing, it’s a genuinely good app to pay for. It just isn’t an answer to “best free weather app,” because the parts that make it special aren’t in the free tier. Who it’s for instead: people who want a weather app with character and will happily subscribe for it.
Where people genuinely disagree
The disagreement here is mild, because the forecast data is largely shared — it’s really about taste:
- iPhone, just want a good free forecast → Apple Weather, already installed. The default for most.
- I want to see maps, wind and storms → Windy, free and unmatched for visualisation.
- I want a clean data source or a privacy-friendly app → Pirate Weather and the free apps it powers.
- I want lots of detail and don’t mind ads → AccuWeather, free but busy.
- I want personality and will pay for it → Carrot (not free, and that’s fine).
The genuinely useful reminder from the communities is that forecast accuracy isn’t really an app feature — most apps pull from the same handful of models, so the app that’s “more accurate” for your area is usually just the one whose source happens to model your local conditions well, not the one with the slickest design. Pick on presentation and ads, because that’s what actually differs. And the differences that matter most are free.