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Weather Underground PWS vs Weatherstack

Weather Underground PWS logo

Weather Underground PWS

Weather

World's largest personal weather station network

From
Free
Rated
-
Full reviewWebsite
Weatherstack logo

Weatherstack

Weather

Real-time weather API trusted by thousands

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Weather Underground PWS personal weather station network relies on community contributions; Weatherstack the free tier allows 100 API calls a month, which is a demo rather than a usable allowance
  • They diverge on capability: Weather Underground PWS covers Station network, Weatherstack covers Real-time weather.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Weather Underground PWS and Weatherstack actually diverge.

Attributes where Weather Underground PWS and Weatherstack differ
AttributeWeather Underground PWSWeatherstack
Pricing modelfreefreemium
PlatformsWeb, MobileApi
Founded19952016

Identical on both: starting price (Free), 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 Weather Underground PWS

  • Station network
  • Real-time upload
  • Quality control
  • Community rankings
  • PWS devices
  • Data APIs
  • Weather apps
  • Web support

Only in Weatherstack

  • Real-time weather
  • Forecasts
  • Location lookup
  • Bulk queries
  • REST API
  • JSON responses
  • HTTPS

Both cover

  • Historical data
  • Api support

What people use each for

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

Weather Underground PWS

  • Community-sourced weather station networknot Weatherstack
  • Personal weather monitoring and forecastingnot Weatherstack
  • Historical weather data accessnot Weatherstack
  • Severe weather alerts and notificationsnot Weatherstack

Weatherstack

  • Current weather lookups by location in an applicationnot Weather Underground PWS
  • Historical weather data for analysis on the paid tiersnot Weather Underground PWS
  • Short and medium range forecastsnot Weather Underground PWS
  • Bulk location queries on the higher plansnot Weather Underground PWS

Where each one falls short

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

Weather Underground PWS

  • Personal weather station network relies on community contributions
  • Data accuracy varies by station quality

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

Weather Underground PWS

Free
  • FreeFree
    • Station registration
    • Data upload
    • Dashboard

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 Weather Underground PWS if

  • You need station network.
  • You want to start without paying.
  • You work on Web, Mobile.
  • You also want real-time upload.
Weather Underground PWS review

Choose Weatherstack if

  • You need real-time weather.
  • You want to start without paying.
  • You work on Api.
  • You also want forecasts.
Weatherstack review

Questions people ask

Is Weather Underground PWS or Weatherstack better?
Neither clearly leads. Weather Underground PWS 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, Weather Underground PWS or Weatherstack?
Weather Underground PWS starts at Free and Weatherstack at Free.
Does Weather Underground PWS or Weatherstack run on more platforms?
Weather Underground PWS runs on Web, Mobile. Weatherstack runs on Api.
Can I use Weather Underground PWS for free?
Both have a free tier, so you can try either at no cost before committing.
What is Weather Underground PWS best used for?
Weather Underground PWS is most often used for community-sourced weather station network, personal weather monitoring and forecasting, historical weather data access, severe weather alerts and notifications. Of those, community-sourced weather station network and personal weather monitoring and forecasting are not what Weatherstack is typically brought in for.
What can Weather Underground PWS do that Weatherstack cannot?
Weather Underground PWS covers Station network, Real-time upload, Quality control, Community rankings. Weatherstack covers Real-time weather, Forecasts, Location lookup, Bulk queries. Both handle Historical data, Api support.

Answered from the vendors’ own pages

Weather Underground PWS: Is there a cost to join the Weather Underground Personal Weather Station network?

No cost is disclosed for joining the Weather Underground PWS network. The site encourages users to join and contribute weather data.

Source
Weatherstack: Is there a free plan for Weatherstack?

Yes, Weatherstack has a free plan that includes 100 API calls per month with real-time weather data and HTTPS encryption.

Source
Weatherstack: What is the cheapest paid plan for Weatherstack?

The Standard plan costs $9.99 per month (or $8.99 monthly when billed annually) and includes 50,000 API calls per month.

Source
Weatherstack: Do Weatherstack's paid plans allow overage charges beyond the monthly limit?

Yes, all paid tiers allow overage charges for API calls beyond the monthly allocation.

Source
Weatherstack: How much can I save with annual billing on Weatherstack?

Annual billing offers up to 15% savings compared to monthly payments across all paid tiers.

Source
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