Weather & Environment · head to head
EPA AirNow vs Weatherstack
EPA AirNow
Weather & Environment
Official U.S. government air quality information
- From
- Free
- Rated
- -
Weatherstack
Weather & Environment
Real-time weather API trusted by thousands
- From
- Free
- Rated
- -
The short version
- Each has a real cost: EPA AirNow air quality data availability depends on nearby monitoring stations, can show no data found near a location when no monitor is close enough; Weatherstack the free tier allows 100 API calls a month, which is a demo rather than a usable allowance
- They diverge on capability: EPA AirNow covers Official AQI data, Weatherstack covers Real-time weather.
Where they differ
Only the attributes on which EPA AirNow and Weatherstack actually diverge.
| Attribute | EPA AirNow | Weatherstack |
|---|---|---|
| Pricing model | Unknown | freemium |
| Platforms | iOS, Android, Web | Api |
| Founded | 1970 | 2016 |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Weather & Environment).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in EPA AirNow
- Official AQI data
- Air quality forecasts
- Fire & smoke data
- Health recommendations
- API access
- Data feeds
- Widgets
- API
Only in Weatherstack
- Real-time weather
- Historical data
- Forecasts
- Location lookup
- Bulk queries
- REST API
- JSON responses
- HTTPS
Both cover
- Api support
What people use each for
The jobs each tool is most often brought in to do.
EPA AirNow
- Checking current Air Quality Index (AQI) for a location or any searched areanot Weatherstack
- Viewing next-day AQI forecasts to plan outdoor activitiesnot Weatherstack
- Monitoring wildfire smoke via the Fire and Smoke Map (built with the U.S. Forest Service)not Weatherstack
- Saving multiple locations for quick referencenot Weatherstack
- Receiving optional push notifications for local AQI forecastsnot Weatherstack
Weatherstack
- Current weather lookups by location in an applicationnot EPA AirNow
- Historical weather data for analysis on the paid tiersnot EPA AirNow
- Short and medium range forecastsnot EPA AirNow
- Bulk location queries on the higher plansnot EPA AirNow
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
EPA AirNow
- Air quality data availability depends on nearby monitoring stations, can show no data found near a location when no monitor is close enough
- Interactive monitor map (PM2.5, PM10, ozone) coverage documented on the primary source is U.S.-focused
- As a government-run service it offers no paid tiers, proprietary data sources, or customization options found in commercial weather/air-quality apps
Weatherstack
- The free tier allows 100 API calls a month, which is a demo rather than a usable allowance
- Historical weather data starts at the Standard plan, $9.99 a month for 50,000 calls
- Forecasting is tiered: 7 days from Professional at $49.99 a month and 14 days from Business at $99.99
- Multi-language responses and bulk queries need Professional or above
- Going past the monthly quota incurs overage charges rather than throttling
Pricing, plan by plan
EPA AirNow
FreeNo published plan breakdown. See the EPA AirNow review.
Weatherstack
Free- FreeFree
- 250 calls/month
- Current weather
- Basic data
- Standard$9.99/month
- 50,000 calls/month
- Forecasts
- Historical
Which should you pick?
Choose EPA AirNow if
- You need official aqi data.
- You want to start without paying.
- You work on iOS, Android, Web.
- You also want air quality forecasts.
Choose Weatherstack if
- You need real-time weather.
- You want to start without paying.
- You work on Api.
- You also want historical data.
Questions people ask
- Is EPA AirNow or Weatherstack better?
- Neither clearly leads. EPA AirNow starts at Free and Weatherstack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, EPA AirNow or Weatherstack?
- EPA AirNow starts at Free and Weatherstack at Free.
- Does EPA AirNow or Weatherstack run on more platforms?
- EPA AirNow runs on iOS, Android, Web. Weatherstack runs on Api.
- Can I use EPA AirNow for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is EPA AirNow best used for?
- EPA AirNow is most often used for checking current air quality index (aqi) for a location or any searched area, viewing next-day aqi forecasts to plan outdoor activities, monitoring wildfire smoke via the fire and smoke map (built with the u.s. forest service), saving multiple locations for quick reference. Of those, checking current air quality index (aqi) for a location or any searched area and viewing next-day aqi forecasts to plan outdoor activities are not what Weatherstack is typically brought in for.
- What can EPA AirNow do that Weatherstack cannot?
- EPA AirNow covers Official AQI data, Air quality forecasts, Fire & smoke data, Health recommendations. Weatherstack covers Real-time weather, Historical data, Forecasts, Location lookup. Both handle Api support.