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RainCastPro by SkyScout AI

· v4.1
★★★★★ (12) ↓ 10 downloads 3 Free

About

Know exactly when to head out — down to the minute. RainCast Pro is the premium precipitation widget for serious athletes and outdoor enthusiasts. Built by AIBIN.AI, powered by SkyScout AI's prediction algorithm, it combines real-time weather intelligence with a smart Go Window algorithm that tells you precisely when to go for your run, ride, or hike. THE WEATHER WINDOW: RainCast Pro's signature feature scans the next 8 hours of precipitation data and finds your best dry window automatically — scored by precipitation probability, rainfall amount, and wind speed. Daylight-aware: sunrise and sunset are factored in, so you'll never be pointed to a 5am window in December. Instead of staring at bars and guessing, you get a direct answer: "Best time to head out: 19:00 – 21:00 · 2h · Low Risk". Thunderstorm-aware: any window containing a forecast thunderstorm is blocked entirely — if a storm is coming, you'll be told to stay inside, not sent into it. Instead of staring at bars and guessing, you get a direct answer: "Best time to head out: 19:00 – 21:00 · 2h · Low rain risk" The confidence tier tells you how good the window actually is: - Clear — very low precipitation risk across the day - Low Risk — good conditions, go for it - Some Risk — possible rain, plan accordingly - Risky — no great window, but this is the best available When no good window exists, RainCast Pro still helps: "No dry window · Rain expected" So you always know the optimal moment to go — or the least bad one. ATHLETE WINDOW: A dedicated screen for runners, cyclists, and outdoor athletes. Finds your best 2-hour window to train based on four factors: precipitation, wind speed, temperature comfort, and air quality index. AQI, wind, and temperature shown are all averaged across your window — not just current conditions. Temperature scoring uses a comfort curve centred on 10–20°C. Warnings surface automatically for rain, heat, cold, freezing temperatures, strong wind, and poor air quality. Unlike the Weather Window, the Athlete Window always returns a result — because some athletes head out regardless. NEW — DRY WINDOWS (48H OVERVIEW): One glance, two days. A dedicated screen shows your best dry window for today AND tomorrow, each rated independently — "Excellent conditions", "Good conditions", "Fair conditions", or "Risky conditions" — and color-coded so the better day jumps out instantly. A fully clear day is shown as "Clear all day" with the complete daylight span. Tomorrow's ratings are honest about forecast uncertainty: a window more than a day out never claims the top confidence tier. Days with no dry window say so plainly, so you can plan around the weather instead of hoping. WHAT YOU GET: - Dry Windows — best window for today and tomorrow side by side, independently rated, with "Clear all day" for fully dry days - Athlete Window — best 2-hour training window with AQI, wind, temp, confidence, and warnings - Weather Window — best dry window in the next 8 hours, daylight- and thunderstorm-aware, with start/end time, duration, and confidence tier - Next 60 minutes — precipitation probability in 15-minute intervals - Next 4 hours — hourly forecast overview - Your location name shown as header — updates automatically as you move - Color-coded by type: Rain (blue), Snow (white), Ice (light blue), Mix (purple) - Visual timeline showing your Weather Window vs rain slots at a glance - Smart summaries: "Rain possible in ~15 min" or "Great conditions · go!" - Night hours skipped automatically (22:00–06:00) — no useless 3am windows - Auto-refreshes every time you open the widget HOW IT WORKS: Uses your watch GPS to fetch hyper-local precipitation and air quality data via Open-Meteo — no account, no subscription required beyond the one-time purchase. Location name powered by OpenStreetMap. No ads, no tracking. Powered by Open-Meteo & OpenStreetMap | Built by AIBIN.AI | SkyScout AI Algorithm

What's new

v4.1 The Dry Windows screen's tomorrow row used to come up empty for most of the day, simply because the app's short-range data ran out before reaching tomorrow's daylight hours. It now falls back to a longer-range forecast when that happens, so tomorrow shows a real window, correctly rated and thunderstorm-checked the same as today, from early afternoon onward instead of only very late at night. Two related honesty fixes: if today's dry window has already ended, the screen now says so plainly instead of implying it rained all day. And "Clear all day" is no longer shown for a day the app hasn't actually finished looking at yet, that label now only appears when the forecast genuinely reaches sunset.

Permissions

CommunicationsPositioningBackgroundSensorHistory

Details

Compatible with 46 devices
Updated Sep 2, 2026
Open on apps.garmin.com ↗