Highest temperature in Los Angeles on Sep 10, 2026?

📊 Market Summary

🌦️ Highest temperature in Los Angeles on Sep 10, 2026?

6 options total

🎯 Best Trade

• Action: 91° or above — YES @ 86%

• Confidence: 🟡 MEDIUM · Uncertainty: LOW

• Why:

• The NWS point forecast of 85°F for KLAX on Sep 10 sits only 4–5°F below this band, well within normal coastal forecast error, making 89–90°F a live outcome the 17% price understates.
• Raw model output for Sep 10 (GFS 94.8, ECMWF 96.5, ICON 93.6) is hot enough that even a partial station adjustment lands some runs in the 89–90°F range.
• The market's 86% concentration on 91°+ leaves little probability mass for the adjacent 89–90°F band, which is the natural landing zone if the NWS 85°F is slightly low.

📈 Where the Market Stands

Verdicts compare my own read against the market price — 🟢 UNDERPRICED (market has it too low) · 🔴 OVERPRICED (market has it too high). The analysis below is the why.

🔬 9-Pillar Analysis (Meteorological Method)

🌡️ 1. Forecast Consensus

My Vegas Line reads the NWS point forecast for KLAX on Sep 10 at 85°F, which sits below the market's 86% favorite band of 91°+ — a direct conflict between the settling agency's own number and the priced-in scenario.

📊 2. Ensemble Spread

Raw multi-model spread for Sep 10 is 2.9°F (GFS 94.8, ECMWF 96.5, ICON 93.6), which is tight enough to be defensible, but those are grid-cell values that run hot versus a coastal station like KLAX, so the tight spread is misleading about the station-level outcome.

⏳ 3. Forecast Skill Decay

The market is pricing near-certainty (86%) on a single-day station maximum, a horizon where coastal marine-layer behavior routinely breaks model consensus by several degrees.

📈 4. Historical Base Rate

The only concrete historical anchor in the intelligence is 1937, where mid-September LA highs ran 89–95°F, but that is one year and adjacent dates, not a September 10 frequency distribution, so it cannot support an 86% base rate for 91°+.

🔀 5. Model Divergence

If the ECMWF grid value (96.5°F) is the outlier and the cooler GFS/ICON station-adjusted read is right, the entire 91°+ band dies and the 85–88°F region becomes live.

📍 6. Micro-Climate Bias

KLAX is a coastal station that reads far cooler than its inland grid cell, and the NWS point forecast of 85°F for Sep 10 versus 94.8–96.5°F raw model output is exactly that marine-layer bias showing up.

🌀 7. Storm Track

Not a storm contract — Hurricane Marie's early-September swell is a surf/coastal story, not a temperature driver for the KLAX daily high.

💰 8. Market Pricing

LOW - the market is thin and the only authoritative input (NWS point forecast) points the opposite direction from the 86% favorite, so the pricing looks stale versus the settling agency's own number.

⚡ 9. Contrarian Check

The main contrarian risk is that the market has over-anchored on hot raw model grid values and is underpricing the cooler coastal bands (85–88°F) that the NWS point forecast actually supports.

⚠️ Disclaimer: AI can make mistakes. This is not financial advice, and not a meteorological forecast — verify against NWS/NOAA and current model output before placing any trades.