Observed arrival · 2026-10-24
Groundhog Markets blends the weather forecast
A free weather site and API that combines open forecasts for place-by-place highs, lows, rain, observations and alerts.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Weather-market users and agent builders
- Worth noticing
- Its market view lists 75 cities with Kalshi or Polymarket high, low, or rain markets alongside forecast data.
Field notes
The page presents daily high and low forecasts alongside rain probability, forecast spread, the latest observation, and alerts. Its market listings connect those weather summaries to Kalshi or Polymarket contracts in 75 cities. The site says its forecasts draw on six named open providers and refresh every 30 minutes; the extracted page does not show API endpoint documentation.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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