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NYC July 6 High Temp: Can 74-75°F Hold at 41%?

NYC July 6 High Temp: Can 74-75°F Hold at 41%?

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SR Sofia Renard Climate & Science Analyst
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Lines Verdict
NO at 60% implied probability

NARROW BAND, WIDE UNCERTAINTY: The 74-75°F band holds plurality favorite status at 41%, but normal NWS forecast error spans multiple two-degree windows. Market probability: 41%.

40% Market Probability
1h +0.0% 24h +0.0% Trend Weak (29/100)
Volume
$9.5K
$9.5K in 24h
Liquidity
$56.6K
Moderate depth
Time Left
1 day
Resolves Jul 6
9K Vol. Jul 6, 2026
74-75°F $797 Vol.
40%
76-77°F $3K Vol.
27%
72-73°F $880 Vol.
18%
78-79°F $638 Vol.
7%
70-71°F $1K Vol.
5%
80-81°F $1K Vol.
4%

Tomorrow is July 6, and New York City’s temperature market is doing something unusual. The 74-75°F band opened as the favorite at fifty cents and has since drifted to 41 cents, losing ground as updated National Weather Service forecasts reshape trader expectations. With resolution in less than 24 hours, the window for a dramatic reprice is short but real.

This market asks a simple question: what will the highest temperature recorded in New York City be on July 6, 2026? The primary outcome, 74-75°F, sits at $0.41 YES and $0.59 NO, implying a 41% probability. The contract resolves at noon on July 6. Total volume stands at $6,863, all of it traded in the last 24 hours.

How the NYC Temperature Contract Works

YES pays out if the single highest temperature recorded at the official NYC measurement point, Central Park, lands exactly in the 74-to-75-degree Fahrenheit range on July 6. The National Weather Service operates Central Park as the standard observation station and publishes daily high readings. Any temperature outside that two-degree band resolves NO for this specific outcome.

  • 74-75°F (Primary Outcome): YES at $0.41, NO at $0.59. Implied probability: 41%.
  • 76-77°F: The next-highest adjacent band, currently the strongest competing outcome.
  • 72-73°F: A cooler scenario, gaining attention as marine influence enters the forecast.
  • 78-79°F and above: Warmer outcomes that have lost ground as the week’s forecast has trended cooler.

The NO side collects if Central Park hits anything outside 74-75°F. That covers eleven other outcome bands, from 63°F or below up to 82°F or higher. The probability mass is spread thin across those alternatives. A forecast that lands right on the boundary between 75°F and 76°F — or between 73°F and 74°F — is where single-degree forecast error creates maximum market impact.

Momentum and Market Signals

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What the Price Movement Is Telling Us

The momentum composite here is worth unpacking. The trend score sits at 44.24, the one-hour change is negative 2.5%, and the 24-hour volume matches total volume exactly at $6,863. That means this market launched fresh and has been actively repriced throughout July 4 and into July 5. The market opened at fifty cents and has shed roughly nine cents of implied probability since open, tracking what appears to be a forecast shift toward temperatures outside the 74-75°F band.

Liquidity is the standout figure. At $49,457, the order book is deep relative to the $6,863 in volume. That ratio suggests market makers are positioned and the spread is tight. But total volume below $10,000 means this sits in the MEDIUM confidence tier. A single large trade could move the price meaningfully before resolution.

  • The one-hour price change of negative 2.5% indicates continued selling pressure on the 74-75°F outcome, likely tied to the most recent NWS forecast update.
  • All $6,863 in volume traded in the last 24 hours, meaning this is a fresh, fast-moving market with no stale positions.
  • Liquidity at $49,457 exceeds volume by more than seven times, keeping spreads tight and execution clean.
  • The trend score of 44.24 is below the neutral 50 threshold, confirming the bearish lean traders expressed by a 41% YES, 59% NO split.
  • The 30-day high of $0.50 is the opening price, meaning this outcome has never been favored more strongly than at launch.

Lines Analysis: Reading the Central Park Forecast

The National Weather Service Central Park forecast is the only number that matters here. At this lead time, 24-hour NWS forecasts carry roughly plus-or-minus two to three degrees of error. That error range spans multiple market bands. The 74-75°F outcome requires the daily high to land inside a two-degree window. Even a confident forecast centered on 75°F leaves meaningful probability mass on 73°F, 74°F, 76°F, and 77°F outcomes simultaneously.

The case against the 74-75°F band centers on adjacent probability. If the NWS forecast median is pointing toward 75°F or 76°F, traders holding adjacent bands at 76-77°F or 72-73°F are essentially betting that normal forecast scatter will carry the actual reading out of the primary band. Early July in New York City averages highs near 83°F at Central Park. A forecast in the mid-70s indicates a cooling pattern, likely a marine air mass or frontal passage. Those setups tend to produce sharper-than-expected temperature drops, which biases outcomes toward the cooler bands. That dynamic is probably driving the slide from 50 cents to 41 cents.

  • NWS updates the Central Park forecast multiple times daily. Any update before midnight July 5 could reprice all active bands simultaneously.
  • A marine air mass arrival earlier than modeled would push the actual high toward 72-73°F or below, collapsing the 74-75°F position.
  • A weaker-than-forecast marine influence or afternoon sun break would push the high toward 76-77°F or warmer, also resolving NO.
  • The exact timing of a frontal boundary crossing Manhattan determines whether afternoon temperatures recover before the daily high is locked in.
  • Weather Underground’s station network across the five boroughs often shows one to two degree variance from Central Park. Resolution uses Central Park specifically.

Here’s what the measurements are telling us: the market is pricing a two-degree band in a forecast environment where normal error comfortably spans four to six degrees. The $6,863 in total volume reflects genuine uncertainty, not conviction. The data doesn’t care about the politics of which band wins. Eleven alternative outcomes collectively absorb 59% of the NO-side probability. That spread is rational given how narrow any single two-degree band is against forecast uncertainty at this range.

LINES VERDICT

NARROW BAND, WIDE UNCERTAINTY

The 74-75°F outcome is the single most likely individual band, but a 41% implied probability on a two-degree window in a live NWS forecast environment means the market is pricing uncertainty correctly, not science.

What the market says: At 41% implied probability, the market has marked 74-75°F as the plurality favorite across twelve bands. Price has fallen from 50 cents since open, reflecting updated forecast data. With resolution less than 24 hours out, volatility risk is low in time but high in single-degree sensitivity.

Key unknown: The next NWS Central Park forecast update is the single event that will reprice this contract. A shift of even one degree in the forecast median redistributes probability across adjacent bands and could push the 74-75°F outcome above or below its current 41% mark.

Frequently Asked Questions

The market assigns a 41% chance that Central Park's July 6 high lands exactly in the 74-to-75-degree Fahrenheit range. Eleven other bands share the remaining probability.

NO pays if Central Park records any temperature outside 74-75°F as the July 6 daily high. That covers all ten other outcome bands from 63°F or below to 82°F or higher.

A National Weather Service Central Park forecast update shifting the predicted high by two or more degrees would redistribute probability across adjacent bands and reprice the primary outcome.

The market resolves at noon on July 6, 2026. Resolution is based on the official daily high temperature recorded at Central Park by the National Weather Service.

Thin volume means prices can shift sharply on a single large trade. Liquidity at $49,457 keeps spreads tight, but low total volume places this in the medium confidence tier.

We aggregate the live positions of the top 50 Polymarket whales (ranked by 30-day tracked volume) into one composite reading per market. It refreshes every hour. The percentage shows how many of those whales hold YES versus NO; the net dollar position shows the cohort's directional exposure in dollars.

A convergence event fires when three or more tracked wallets buy the same outcome on the same market within a four-hour window. We surface these in the activity feed and the VIP digest.

No. Lines is an editorial and data product. We do not operate prediction markets, custody funds, or accept trades. All trade flows deep-link to Polymarket via our affiliate code. Probabilities shown are market-implied and not predictions or recommendations.

What Could Shift These Probabilities?

Forecast Locks In at 75°F

NWS Central Park afternoon forecast updates converge on 75°F with low uncertainty. Weak marine influence keeps temperatures from dropping further, and afternoon cloud cover prevents solar heating above 76°F. Traders buy the 74-75°F band back toward 55-60 cents as forecast confidence tightens around the target range.

Marine Air Arrives Early

A stronger-than-modeled marine air mass pushes into Manhattan before peak heating hours, driving the Central Park high to 72°F or 73°F. The 74-75°F band collapses toward 20 cents as cooler adjacent outcomes absorb the probability. NWS updates the forecast lower and the primary outcome resolves NO.

Adjacent Bands Falter

The 76-77°F and 72-73°F competing outcomes lose ground if late-model forecast runs narrow the uncertainty cone directly onto 75°F. Traders holding adjacent bands sell, funneling probability back into the primary 74-75°F outcome and pushing YES above 50 cents before the July 6 noon close.

Urban Heat Island Surprise

Central Park sits in a vegetated microclimate that can run two to three degrees cooler than surrounding Manhattan neighborhoods. An unexpected afternoon wind shift channeling hot urban air into the park could push the official reading one to two degrees above model forecasts, landing in the 76-77°F band and resolving NO on the primary outcome.

Key macro factor: Early July 2026 cooling patterns across the Northeast reflect a persistent upper-level trough that has kept temperatures well below the seasonal average of 83°F at Central Park for most of the past week.

Market Timeline

1:02 AM
Market Created
1:02 AM
Market Opened
Monday, Jul 6
Market Resolution

Market Comments

Probabilities shown are market-implied and not predictions or recommendations. This content is for informational purposes only.