Saudi Oil Pipeline (East-West) restarts by September 30?66%17.0Bitcoin Up or Down on September 17?79%2.0Opus 5.2 released in September?28%14.4Will WTI Crude Oil (WTI) hit (HIGH) $110 in September?30%14.5Will Bitcoin dip to $72,500 in September?39%5.0Will the Fed increase interest rates by 25 bps after the October 2026 meeting?45%7.0Will Ethereum reach $2,600 in September?55%7.5Will the price of Bitcoin be above $74,000 on September 17?99%6.8Will there be no change in Fed interest rates after the October 2026 meeting?55%7.0Will Linke win the most seats in the 2026 Berlin state elections?63%5.0Will Bitcoin reach $80,000 in September?48%3.0Friedrich Merz out as Chancellor of Germany before December 31, 2026?20%9.0Will Elon Musk post 160-179 tweets from September 11 to September 18, 2026?10%6.0Will SPD win the most seats in the 2026 Mecklenburg-Vorpommern parliamentary elections?25%9.0US Average Gas Price Is $4.400 or more on September 21 2026?93%15.9Clarity Act (H.R.3633) signed into law in 2026?8%3.2
PolymarketMacro / FedUpdated 9m ago

Will the highest temperature in Wuhan be 20°C or below on September 17?

Market probability
0.2%
Little changed over 24 hours
Less than a day until the event deadline
Deadline: September 17, 2026 at 8:00 AM ET

No meaningful repricing — the probability is steady.

The pricing has partial support: healthy trading volume and market depth, a tight spread.

How credible was the move?

Three separate questions — a move can be genuine while the latest price is still settling. Methodology →

Move validity

Is the move backed by real trading and depth?

Moderate

The pricing has partial support: healthy trading volume and market depth, a tight spread.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$18.5 traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Wuhan Tianhe International Airport Station in degrees Celsius on 17 Sep '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zhhh If NOAA data …

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Wuhan Tianhe International Airport Station in degrees Celsius on 17 Sep '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=zhhh If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source. In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket. To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C. This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.

Resolution source: weather.gov

What could move this market next?

  • The market's deadline arrivesSeptember 17, 2026 at 8:00 AM ET

    The contract must resolve based on what has happened by this date.

  • Confirmation at the resolution source (weather.gov)

    The rules name this source as the basis for settlement.

Derived from the contract's own mechanics as of Sep 17, 1:31 AM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: low · expected error ±17 pts.

Resolving soonLegacy movement classifier: watch

What's happening

high classifier confidence
Resolving soon

Near resolution or with ambiguous wording, pricing is mechanically thin and can swing on tiny trades. Read end-of-life prices with extra caution.

  • Resolves in 0 day(s) — end-of-life pricing is mechanically thin

Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
29Low
Where the price path tends to go next371 observed
  • Choppy / mean-reverting91%
  • Stable consensus4%
  • Illiquid / quiet2%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life ~24h
PredictabilityStable

Secondary read: leaning toward Quote-driven.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

$77.4K

Liquidity

$3.2K

Total volume

$79.1K

Category
Macro / Fed
Venue
Polymarket
Open interest
Spread
0.2 pts
Best bid
0.1%
Best ask
0.3%
7-day range
0.1% – 0.3%
Resolves
Sep 17, 2026
Resolution
weather.gov
Change (pts)1H+0.16H0.024H0.07D0.0

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