May 26, 2026 — clean sweep on @Polymarket's max temperature markets
7 cities, 7 forecasts, 7 confirmations:
London → forecast "above 32°C", landed 34°C ✓
• Miami → ruled out both 84-85°F and 92-93°F bands, landed 87°F ✓
• Moscow → market priced 12°C peak at 11%, we said even less likely → 15°C ✓
• Paris (LFPB) → ruled out 34°C, landed 32°C ✓
• Milan, Shanghai, also clean
16/16 calls verified.
Sharpest one: Moscow, where the market's modal peak was off by 3°C.
Track the weather: https://t.co/ijxHAR8XuF
🌡️ May 14, 2026 — @Polymarket Tmax markets
8 cities. 19 forecast calls. 19 buckets correctly ruled out.
Highlight: Hong Kong 27°C — market priced this bucket as plausible (NO ~90¢). DEMFI placed Tmax in the high-20s/low-30s. Observed Tmax: 31°C ✓
Same markets, sharper signals.
Forecast analytics. Not financial advice.
Maximum temperature forecasts for @Polymarket bettors: V1 HIGH track record, yesterday April 18 📊
Safe-Bet forecasts: 9/9 ✅
14-model ensemble + V1 Markov bias correction.
When confidence concentrates on specific buckets,
the distribution tells us where temperature WON'T land.
Yesterday the call was clean across 9 cities.
Discover all 50 cities on https://t.co/xazQBqMGRx
@Polymarket Maximum Temperature Tokyo April 15: 26/40 correct on temperature predictions 🎯
14 models + Markov bias correction (V1) — top-performing city of the day on real trades.
📊 65% hit rate across edge and safe bet strategies
Weather science meets prediction markets.
https://t.co/xazQBqMGRx
Reality check on weather forecasts.
Out of 40 cities we track on raw uncorrected 150+ weather forecast model outputs:
Tomorrow's forecast: only 1 reaches our top tier (Madrid). 3 more are solid.
3 days out: zero top tier. 5 cities solid.
5 days out: literally zero.
Trading Polymarket weather at 4-5 days on raw forecasts? Most of those bets are coin flips with extra steps 👇
🔬 The Sharp — Edge of the Day
Seoul today: Polymarket says 42%. Our 12 NWP models say 67%.
That's a 25-point edge.
No gut feeling. No vibes. Just the same models used by governments and airlines — now available to you.
🎯 The Degen — Longshot of the Day
The market prices it at 1¢. Our models say 18%.
That's a $100 potential payout on a $1 bet.
We find the buckets where Polymarket is sleeping and the expected value is massive.
High risk. High reward. Math-backed.
5/ What you get with DEMFI:
📊 Multi-model consensus — see where 12 models agree
📈 Plume charts — visualize model uncertainty in real-time
📉 Probability distributions — scientific odds for every outcome
⏱️ Temporal evolution — watch how probabilities shift as forecast updates arrive
All updated in real time.
4/ How we calculate probabilities:
Each forecast model predicts a temperature.
12 models → 150+ forecasts.
We fit a probability distribution to these predictions.
It's physics-based, not feeling-based.
The result: transparent, science-driven probabilities.
Here's what real probabilistic forecasting looks like:
Each bar = the probability that tomorrow's max temp falls in that range
The red curve = the fitted continuous distribution (KDE)
When 12 independent models from 12 countries agree, you're not betting.
You're reading physics.
Every few hours, each model updates its forecast.
We compute the probability distribution across all models for every temperature bucket.
This chart shows real probability convergence for New York's max temperature tomorrow — updated live as models refresh.
This is science in motion. Not market noise.