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Weather · head to head

Aeris Weather vs Weather Underground

Aeris Weather logo

Aeris Weather

Weather

Powerful weather API with mapping solutions

From
Free
Rated
-
Full reviewWebsite
Weather Underground logo

Weather Underground

Weather

Crowdsourced hyperlocal weather from personal stations

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Aeris Weather aerisWeather now sells as Xweather under Vaisala; Weather Underground free public API discontinued as of December 31, 2018 with no new developer accounts accepted
  • They diverge on capability: Aeris Weather covers Weather API, Weather Underground covers Personal weather stations.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Aeris Weather and Weather Underground actually diverge.

Attributes where Aeris Weather and Weather Underground differ
AttributeAeris WeatherWeather Underground
PlatformsApi, Web, MobileWeb, Mobile web, Personal Weather Station network
Founded20112003

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated), category (Weather).

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 Aeris Weather

  • Weather API
  • Interactive maps
  • Severe weather alerts
  • Tropical data
  • REST API
  • Mapping SDKs
  • Mobile SDKs
  • Api support

Only in Weather Underground

  • Personal weather stations
  • Hyperlocal data
  • Webcams
  • Community forums
  • PWS networks
  • Smart home
  • APIs
  • Ios support

Both cover

  • Historical records
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Aeris Weather

  • Weather data and forecastingnot Weather Underground
  • Mission-critical weather-dependent decisionsnot Weather Underground
  • High-reliability weather intelligence servicesnot Weather Underground
  • Multi-industry weather data distributionnot Weather Underground

Weather Underground

  • Professional Worknot Aeris Weather
  • Content Creationnot Aeris Weather

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Aeris Weather

  • AerisWeather now sells as Xweather under Vaisala
  • The free Developer tier is capped at 15,000 API accesses per month and the service pauses once the limit is reached
  • The Developer tier gets community support only
  • The self-serve paid subscription is EUR 300 per month for 1,000,000 accesses per month
  • Anything beyond 1,000,000 accesses per month requires contacting sales for a custom arrangement
  • Dedicated support and custom SLA guarantees are enterprise only
  • Free tier usage resets on the account creation date rather than the calendar month

Weather Underground

  • Free public API discontinued as of December 31, 2018 with no new developer accounts accepted
  • Previous enterprise pricing was expensive at $150/month for Cumulus Drizzle plan
  • No longer competitive for developers needing reliable weather API access
  • Service is in wind-down phase with limited future development

Pricing, plan by plan

Aeris Weather

Free
  • DeveloperFree
    • 1,000 calls/day
    • Basic data
    • Maps
  • Professional$100/month
    • Unlimited calls
    • All data
    • Premium support

Weather Underground

Free
  • FreeFree
    • PWS data access
    • Forecasts
    • Historical data
  • Ad-Free$1.99/month
    • No advertisements
    • Premium features

Which should you pick?

Choose Aeris Weather if

  • You need weather api.
  • You want to start without paying.
  • You work on Api, Web, Mobile.
  • You also want interactive maps.
Aeris Weather review

Choose Weather Underground if

  • You need personal weather stations.
  • You want to start without paying.
  • You work on Web, Mobile web, Personal Weather Station network.
  • You also want hyperlocal data.
Weather Underground review

Questions people ask

Is Aeris Weather or Weather Underground better?
Neither clearly leads. Aeris Weather starts at Free and Weather Underground at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aeris Weather or Weather Underground?
Aeris Weather starts at Free and Weather Underground at Free.
Does Aeris Weather or Weather Underground run on more platforms?
Aeris Weather runs on Api, Web, Mobile. Weather Underground runs on Web, Mobile web, Personal Weather Station network.
Can I use Aeris Weather for free?
Both have a free tier, so you can try either at no cost before committing.
What is Aeris Weather best used for?
Aeris Weather is most often used for weather data and forecasting, mission-critical weather-dependent decisions, high-reliability weather intelligence services, multi-industry weather data distribution. Of those, weather data and forecasting and mission-critical weather-dependent decisions are not what Weather Underground is typically brought in for.
What can Aeris Weather do that Weather Underground cannot?
Aeris Weather covers Weather API, Interactive maps, Severe weather alerts, Tropical data. Weather Underground covers Personal weather stations, Hyperlocal data, Webcams, Community forums. Both handle Historical records, Web support.

Answered from the vendors’ own pages

Aeris Weather: How is Xweather pricing structured?

Xweather offers custom pricing for its software products and weather API. Pricing reflects deployment scale, data complexity, reliability requirements, and service scope. Contact Xweather for a personalized quote tailored to your needs.

Source
Weather Underground: What happened to the Weather Underground API?

The free public API was discontinued on December 31, 2018, after IBM acquired The Weather Company. The service is now in a wind-down phase with no new developer accounts accepted.

Source
Aeris Weather: Does Xweather offer a pay-as-you-go weather API?

Yes. Xweather provides a free weather API key with pay-as-you-go pricing available. Specific rates and API tier details are available at the Xweather API signup portal or by contacting the sales team.

Source
Weather Underground: Can I still use Weather Underground's data?

Free API keys are still available for Personal Weather Station (PWS) owners who upload data to the network. General developers need to migrate to alternative weather API providers.

Source
Aeris Weather: What products does Xweather offer pricing for?

Xweather's software products include Protect, Optimize, Observe, Horizon, RoadAI, WeatherDesk, and Powerup. Individual pricing for each product is determined by your deployment requirements and service agreements. Contact Xweather to discuss subscriptions, tiers, SLAs, and specific pricing.

Source
Weather Underground: What was the pricing for Weather Underground's Cumulus plans?

The Cumulus Drizzle plan cost $150/month, which many developers found prohibitively expensive for weather data compared to modern alternatives.

Source
Weather Underground: Does Weather Underground still offer a consumer-facing service?

Yes. The consumer website continues to provide weather forecasts, news, alerts, and access to personal weather station data through the PWS network.

Source
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