Paris June 10 Low Temp: Will It Hit Eleven Degrees?

Paris is heading into the overnight hours of June 10 with a single temperature question on the table: does the low land exactly at 11°C? The 11°C outcome carries a 48.5% implied probability, making this a near-coin-flip on a hyperlocal weather contract. Momentum has been aggressive. The market surged more than 20% in the past 24 hours, which tells you fresh meteorological data shifted trader conviction sharply toward this bin.

The market question asks: what is the lowest temperature in Paris on June 10? The 11°C outcome is priced at 0.49 YES and 0.52 NO. The contract resolves by 2026-06-10 12:00:00. Total volume stands at $4,343, with $3,621 of that trading in the last 24 hours alone.

How the Eleven-Degree Contract Works

This is a discrete outcome market. YES on 11°C pays out only if the verified minimum temperature recorded in Paris on June 10 lands in the 11°C bin. Resolution relies on the designated meteorological source for Paris surface temperature data. If the low falls to 10°C, 12°C, or any other bin, this contract pays NO.

• YES (0.49, ~48.5%): The Paris daily minimum on June 10 resolves at exactly 11°C.
• NO (0.52, ~51.5%): The Paris daily minimum lands at any other temperature, including 9°C, 10°C, 12°C, 13°C, or outside that range.

The NO side wins when the overnight low drifts into an adjacent bin. June temperatures in Paris cluster in the 10-14°C range for overnight lows in early June, meaning the 10°C, 12°C, and 13°C bins each carry their own non-trivial probability. A single degree of forecast error is enough to reprice this contract entirely.

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Momentum and Market Signals

The momentum composite here is unusually strong for a small weather market. The 1-hour change of +14.5%, the 24-hour change of +20.5%, and a trend score of 74.16 all point in the same direction: traders updated their models sharply, most likely after a fresh numerical weather prediction run from ECMWF or Météo-France confirmed the overnight synoptic pattern. That kind of directional conviction in a single session is meaningful.

Volume context matters here. Total volume is $4,343, with $3,621 trading in the last 24 hours. Liquidity sits at $30,296, which is actually deep relative to the volume. That liquidity depth means the order book can absorb modest new positions without violent price swings. But with total volume well under $1M, this is a thin market. One large bet from a trader with better-than-average weather data access could move the 11°C probability several points in either direction before resolution.

• The 1-hour and 24-hour momentum signal points strongly toward 11°C, driven by updated forecast data from European weather models.
• Liquidity at $30,296 provides order book stability, but sub-$1M total volume means sharp moves on new data are possible.
• Trader sentiment sits at 48.5% YES versus 51.5% NO, a near-split reflecting genuine meteorological uncertainty in a tight temperature range.
• The related market placing 2026 among the hottest years on record (63%) provides macro context: Paris baseline temperatures are running warmer than historical averages this year.
• The 24-hour volume of $3,621 represents 83% of total contract volume, confirming this is a last-minute weather market driven by short-term forecast convergence.

Lines Analysis: Paris Overnight Low

The case for 11°C rests on the momentum signal. European forecast models running this close to resolution date carry high skill scores for 24-hour Paris minimum temperature. When traders bid a discrete bin from 0.24 to 0.49 in a single session, they are reacting to model consensus, not noise. Météo-France operational forecasts for June 10 have apparently aligned around the 11°C range, which is consistent with the synoptic pattern over western Europe in early June 2026.

The genuine risk to this contract is the adjacent-bin problem. Paris overnight lows in early June sit in a zone where a shift in cloud cover, a late-evening rain event, or a wind direction change can push the minimum a full degree in either direction. The 10°C bin and the 12°C bin are the primary alternatives. Either one pays out zero on this contract. Thin cloud cover keeps temperatures elevated toward 12°C or higher. A clear sky with light northerly winds pulls the low toward 10°C or below.

• Météo-France final operational forecast issued before midnight June 9 will be the clearest signal for repricing.
• Any update to the ECMWF ensemble showing spread narrowing to 11°C strengthens the YES side significantly.
• A surface pressure shift or unexpected convective activity over the Paris basin could move the low out of this bin entirely.
• Weather station data from Montsouris (the standard Paris climate reference) will determine resolution.
• The broader 2026 warm year context (63% probability of a top-ranked year) nudges baseline expectations slightly warmer, which marginally favors the 11-12°C range over 9-10°C.

Total volume of $4,343 is thin. The data favors 11°C based on momentum and forecast alignment, but the margin is genuinely narrow. The data doesn’t care about the politics, and here, the science is straightforward: this is a one-degree resolution problem in a city with well-documented urban heat island effects and a high-skill 24-hour forecast environment.

LINES VERDICT

NARROW LEAN TOWARD YES ON ELEVEN DEGREES

The momentum signal is real and it points to forecast model convergence. When a contract moves from 0.24 to 0.49 in one session on a thin weather market, that repricing reflects updated meteorological data, not speculation.

What the market says: At 48.5%, the market is pricing genuine uncertainty, not a settled outcome. This is the market pricing uncertainty, not science. With resolution in under 24 hours, any final forecast update or observed overnight conditions can reprice this contract sharply.

Key unknown: The Météo-France final operational forecast issued overnight June 9-10, combined with actual observed conditions at the Montsouris station in the early morning hours, will determine whether the 11°C bin holds or the low drifts into an adjacent outcome.

Scientific Context: Paris Temperature Benchmarks

Paris overnight lows in the first two weeks of June historically average between 10°C and 13°C at the Montsouris climate reference station. The urban heat island effect in central Paris tends to keep overnight minimums 1-2°C above rural surroundings. Here’s what the measurements are telling us: the current synoptic pattern over western Europe in early June 2026, combined with the broader warm-year signal, makes the 10-14°C range collectively the high-probability zone. The market’s concentration on 11°C specifically reflects current forecast model output rather than any unusual climatological feature of the date.

Events that would move price before resolution: any forecast model update shifting the expected low to 10°C or 12°C would reprice this contract by 10-20 points. An observed early-morning temperature reading from a Paris automated weather station, if publicly available before official resolution, would collapse uncertainty entirely.

What is the 48.5% probability telling traders?

The 48.5% probability means the market treats 11°C as the single most likely individual outcome but not a certainty. With more than ten bins available, being the modal outcome at under 50% is still meaningful.

What pays out on the NO side?

Any Paris daily minimum on June 10 that does not land at 11°C pays out the NO contract. The 10°C, 12°C, and 13°C bins are the most likely alternatives based on current forecast spread.

What data or event moves this price most?

The Météo-France or ECMWF forecast update issued in the final 12 hours before resolution is the single highest-impact input. Observed station data from Montsouris after midnight June 9 would reprice immediately.

When does this contract resolve?

The contract resolves by 2026-06-10 12:00:00. That is roughly 21 hours from the current timestamp, meaning one more full overnight observation window separates traders from the outcome.

Is the volume and liquidity reliable here?

Liquidity at $30,296 is solid relative to total volume of $4,343, meaning the order book is well-funded. But total volume under $1M means this market can move sharply on even a small new position or a public forecast update.