OmniCast Weather
Michael Donnelly Weather iPhoneiPadiPod touch
OmniCast Weather is a free Weather app for iPhone and iPad by Michael Donnelly. Rated 5.0/5 from 4 ratings. Requires iOS 17.0. Updated September 28, 2026.
- Rating
- 5.0
- 4 ratings
- Price
- Free
- on the App Store
- Size
- 8 MB
- Age 4+
- Updated
- Sep 28
- 2026 · v1.1.3
Screenshots
About OmniCast Weather
OmniCast Weather helps you understand the forecast instead of hiding uncertainty behind one number. Most weather apps show a single blended forecast. OmniCast lets you compare several professional forecast models side by side, including models from NOAA, ECMWF, Environment Canada, DWD, and more. When the models agree, you can plan with more confidence. When they spread apart, OmniCast makes that uncertainty visible. Key features: - Compare multiple weather models on one clean chart - View temperature, precipitation, wind, precipitation probability, and cloud cover - See model agreement at a glance - Check 7-day forecast cards with model ranges and daily details - Use live radar on the map for current precipitation - Get daily or weekly forecast report notifications, written in your choice of voice - Add Home Screen and Lock Screen widgets for quick forecast confidence - Set weather alerts for rain, severe weather, wind, temperature, and forecast uncertainty - And NO ADS! Daily and weekly forecast reports summarize what the models agree and disagree on, delivered as a notification in whichever voice you prefer — a straightforward meteorologist, a numbers-obsessed model nerd, a gardener focused on planting and frost risk, or a stylist deciding what to wear. OmniCast Pro (auto-renewing monthly subscription, free trial for eligible subscribers) unlocks Smart Forecast — a location-specific blended forecast trained on recent historical model performance, with confidence intervals — plus the full set of report voices. Subscriptions are billed through your Apple ID and subject to Apple's standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ OmniCast is designed for people who want more context before making weather-sensitive plans: commuters, runners, hikers, sailors, parents, photographers, event planners, and anyone who has wondered why two forecasts disagree. Forecasts are informational and may be inaccurate. For life safety decisions, always follow official weather warnings and local emergency guidance.
What’s new
Version 1.1.3 · Updated September 28, 2026
Version 1.1.3: Smart Forecast now trains on NOAA's National Blend of Models (NBM), alongside GFS, HRRR, NAM, ECMWF, GEM, and ICON NBM forecasts now show precipitation amounts, not just rain chance Your Weekly report now refreshes every day instead of once a week Jump straight between your Daily and Weekly reports with a new quick-swap card See and toggle which models are included right from the Compare tab's Overview Improved reliability for weather alerts
App privacy
The developer, Michael Donnelly, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Location: Precise Location
- Identifiers: Device ID
Used for: Analytics, App Functionality
Alternatives to OmniCast Weather
Looking for apps like OmniCast Weather? Here are 6 similar apps on the App Store. The highest rated is USA Weather Pro: Live Radar (5.0/5), and all 6 are free to download.
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USA Weather Pro: Live Radar
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NWS Weather (Unofficial)
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SkyVista Weather:Live Forecast
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YAWA NOAA Weather
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Squall - Weather and Forecast
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RemoteWeather
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| OmniCast Weather | 5.0 / 5 (4 ratings) | Free | September 28, 2026 | |
| USA Weather Pro: Live Radar | 5.0 / 5 (1) | Free | Oct 12, 2026 | Compare |
| NWS Weather (Unofficial) | 5.0 / 5 (1) | Free | Oct 3, 2026 | Compare |
| SkyVista Weather:Live Forecast | 5.0 / 5 (1) | Free | Jan 31, 2026 | Compare |
| YAWA NOAA Weather | 5.0 / 5 (1) | Free | Oct 10, 2026 | Compare |
| Squall - Weather and Forecast | – | Free | May 19, 2026 | Compare |
| RemoteWeather | – | Free | Jul 7, 2026 | Compare |
Compare OmniCast Weather with the top alternatives: ratings, updates, ASO score and keyword gaps →