WeatherCape Town

Cape Town Temperature Markets on Polymarket
3 live eventsHighest temperature in Cape Town on July 23? — $38.3K vol · resolves 23:59 local · source: FACTPolymarket|Resolution source
SETTLED · 15°C @ 100¢18:29 LOCAL · 2026-07-23
CONDITIONS · METAR + ECMWF · UPDATED 18:01
S 2.6 m/s
WIND
100% RH
DEW POINT 13°
SUN DOWN
SET 17:59
SHOWERS 67% BY 18:00
PRECIP 67% TODAY
DATA STALE · OBS 2H 23M AGOAUTO-REFRESH 30S
Today — hourly observations vs ensemble
FACT resolution station · METAR DUE NOW · next ENS pull ~18:40 · all temps °C
15.0°
RUNNING MAX · SINCE 15:28
11.0°
MIN · 03:00
Station obsForecast p50ECMWF p10–90 · 51 membersYesterday (final 16.0°)Running day maxΔ VS YESTERDAY · -1.0°AT 18:00
— Bucket scale — model vs marketPROCLOB 18:29 · ECMWF ensemble · edge ≥ 15 pts
≤14°CELIM
0¢0%
MKT
MDL
15°C
100¢28%
MKT
MDL
35¢ → 100¢ TODAY
±1¢ DEPTH $739 · THIN
16°C
0¢8%
MKT
MDL
4¢ → 0¢ TODAY
±1¢ DEPTH $9 · THIN
17°C
0¢0%
MKT
MDL
1¢ → 0¢ TODAY
±1¢ DEPTH $10 · THIN
≥18°C
0¢0%
MKT
MDL
±1¢ DEPTH $14 · THIN
After settlement the ladder retires: no EDGE / WATCH noise, one quiet check on the winning bucket.EDGE = model − market (+ model sees more · − market rich) · highlight ≥ 15 pts
— Station map1 sensors · refresh 10m
Resolution station — FACT
Nearby sensors — PWS network
~2 KM
Live sensors — MapLibre GL · OpenFreeMap dark tiles ship next iteration— Next days — ensemble spread & early markets2 live events · early edge where spread is wide
— Model track record · Cape TownScored daily · morning run vs resolution extract · since 2026-07-19
50%
LEADER HIT RATE · 4D
2 of 4 days
0.84
BRIER SCORE · MODEL
lower is better · 0 = clairvoyant
16°C @ 47% → 16.0°C✓ HIT
YESTERDAY · FORECAST VS FACT
actual bucket 16°C
LAST 4 DAYS · LEADER BUCKET HIT
We publish the scorecard because a forecast you cannot audit is just marketing. Bias calibration lands after 2–3 weeks of history — these are raw-model numbers.
— Smart money in this marketPRO80K resolved temp markets
Smart money is a Pro feature
Whale flows in every bucket, farmer-filtered, from 1.07B indexed trades.
Upgrade to ProWeather data: METAR · Weather Underground · Open-Meteo ECMWF ensemble. Prices: Polymarket. Model probabilities use a preview bucket rule pending full verification on resolved markets. Past performance does not guarantee future results.
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