The Best Snow Forecast Tools for Mac Skiers
“Will it dump?” is really three different questions, and the tools below answer different ones:
- What does the atmosphere look like this week? (forecast interpretation)
- How much snow will land at this specific spot? (point forecast)
- Tell me when it happens so I stop checking. (alerting)
Most frustration with snow forecasting comes from using a tool built for question 1 to answer question 3, or vice versa. I make one of the tools here — the alerting one — so weigh this accordingly. I use several of the others myself.
For reading a storm: OpenSnow
If you only use one thing, this is probably it.
OpenSnow’s distinguishing feature is that actual meteorologists write daily forecast discussions for specific regions. That matters more than it sounds. Raw model output will tell you 30 cm; a forecaster will tell you the model is overcooking a lake-effect band, or that the snow arrives as rain below 2,000 m, or that the real day is Thursday not Wednesday.
Reading a storm — understanding why the numbers say what they say and how confident to be — is something no automated tool on this list does, and OpenSnow does it well. It runs in a browser on a Mac and has apps on phones. The in-depth features are subscription-based; check their site for current pricing, since it changes.
Honest verdict: for forecast quality and interpretation, this is the best thing here, and it’s not close. If your question is “should I drive four hours for this storm”, start here.
For point forecasts by elevation: Snow-Forecast.com
Snow-Forecast.com covers a very large number of resorts worldwide and shows forecasts broken out by elevation band — base, mid, summit — which is exactly the distinction most tools flatten. A base-area number systematically understates what you’ll ski.
It’s a website, free to use with advertising, with paid tiers. On a Mac it’s a browser tab.
Honest verdict: the best free way to see how a storm stacks up by elevation. The interface is dense and dated, and you’ll be scrolling.
For models and wind: Windy
Windy is the serious tool for looking at the weather itself rather than a summary of it. You can switch between forecast models — ECMWF, GFS, ICON and others — and see where they disagree, which is the fastest way to gauge confidence in a forecast. Its wind visualization is the best available, and wind matters enormously: it determines loading, scouring, and whether the lifts spin at all.
Free in a browser with a premium tier for higher resolution and more frequent updates.
Honest verdict: unbeatable for wind and for model comparison. It is not a “will there be powder at my resort” tool — it’s a weather tool, and reading it takes some practice.
The resort’s own site
Worth stating plainly: the resort’s snow report is the only source that tells you what actually fell and what’s actually open. Every tool above forecasts. The resort measures (and yes, has a mild incentive to round up).
Honest verdict: irreplaceable for conditions today, useless for planning. Check it the morning of, not the week before.
For alerting: Powder Alert
This is mine, so treat it as the interested party’s pitch.
Everything above requires you to go and look. That’s fine for planning a trip and bad for catching a surprise. Powder Alert inverts it: you set a threshold once, and it tells you when the threshold is crossed.
Specifically, it’s a Mac menu bar app and widget that watches 165+ resorts across 16 countries (or any coordinates you pin), and notifies you when tomorrow’s snowfall beats your number. It also flags storm cycles — three or more of the next five days showing snow — and gives advance warning days out, which is the one that lets you arrange coverage at work early. Desktop widgets show a 24-hour total, a 5-day chart, or a full week at a glance.
Its data comes from Open-Meteo, which means it’s model output, not a human forecast. On the question OpenSnow answers best — interpretation — Powder Alert doesn’t compete at all. It’s $4.99, one-time.
Honest verdict: good at exactly one job, which is removing the morning ritual. If you want to understand a storm, use OpenSnow. If you want to be told about it, use this.
What I’d actually run
| Question | Tool |
|---|---|
| Is this storm worth a trip? | OpenSnow |
| How much at summit vs base? | Snow-Forecast.com |
| Will it be wind-hammered? | Windy |
| What fell and what’s open? | The resort’s site |
| Tell me when it happens | Powder Alert |
A reasonable free stack is Snow-Forecast for numbers, Windy for wind, and the
free DIY alert script if you’re comfortable with a shell
script and a launchd job — that page walks through building one, and it costs nothing.
If you ski enough that the morning check is a habit, OpenSnow for the forecasting plus something that alerts you is the combination that actually changes your season. Notably, those are two different products, and one of them isn’t mine.