Will 2026 be the hottest year on record? Odds and prices

65%
Yes

Consensus across 2 venues · Updated

Markets price "Will 2026 be the hottest year on record" at 65%, with 2 venues quoting within 2 points of each other. The contract settles by Mar 1, 2027; each venue words its settlement rules itself, compared below.

This question on Polymarket and Kalshi.

$5K
24h volume, both venues
2
venues quoting
Mar 1, 2027
settles

Odds by venue

Yes: Will 2026 be the hottest year on record?: price on each venue, the fee, 24h volume and liquidity, with a link to trade
VenueYesNoFee24h volumeLiquidity
Polymarket66¢34¢1.1¢$5K$16KTrade →
Kalshi64¢cheapest to buy36¢1.6¢$170–Trade →
Updated Fee: the taker fee on one contract at the price shown, as each venue publishes it; Polymarket's is its international book, Polymarket US charges its own.

How the odds have moved

Polymarket · Will 2026 be the hottest year on record
66%▼ 3.0 pts since Sep 28
Yes price
Sep 2863% – 74% scaleOct 5

One venue's series for the result the headline prices, not a blend; venues tick at different cadences and interpolating one onto the other would invent points.

What the market is actually pricing

Venues word settlement differently for the same question, and the difference decides who gets paid. This is the comparison no venue publishes about its rivals.

Polymarket

This market will resolve according to the numerical rank of how hot 2026 is when compared against all other years for which the Global Land-Ocean Temperature Index has data.

Full settlement wording

This market will resolve according to the numerical rank of how hot 2026 is when compared against all other years for which the Global Land-Ocean Temperature Index has data.

Years will be ranked in descending order, starting with the hottest as number 1, the second hottest as number 2, etc.

If 2026 ties with any other year, it will resolve according to the place the year it ties with occupies.

This market will resolve immediately once the specified data becomes available, regardless of whether the figure for the relevant years is later revised.

The primary resolution source for this market will be the figure found in the table titled "Land-Ocean Temperature Index (C)" under the column "No_Smoothing" in the row "2026" (https://data.giss.nasa.gov/gistemp/graphs/graph_data/Global_Mean_Estimates_based_on_Land_and_Ocean_Data/graph.txt). If NASA's "Global Temperature Index" is rendered permanently unavailable, other information from NASA may be used. If no information for 2026 is provided by NASA by March 1, 2027, 11:59 PM ET, this market will resolve based on a consensus of credible reporting.

Kalshi

If the unsmoothed Land-Ocean Temperature Index value for 2026 reported by NASA’s Goddard Institute for Space Studies (GISS) is above 2025 value and 1.28 degrees Celsius, then the market resolves to…

The market will close at 11:59 PM ET on December 31, 2026. The market will expire at the sooner of the first 10:00 AM following the release of the data for 2026, or 10:00 AM ET April 01, 2027

Where you can trade this

The Trade links in the tables above open each venue's own market. The reviews cover sign-up, funding and payouts.

Related markets

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Common questions

What are the odds on "Will 2026 be the hottest year on record"?

Markets currently price it at 65% across 2 venues, a market-implied probability rather than a forecast.

Where can I trade "Will 2026 be the hottest year on record"?

On Polymarket and Kalshi. Availability by state varies for sports contracts; see the legal pages.

Why do the venues show different prices?

Different traders, different fees, and different settlement wording. The gap is the reason this page exists; the cheaper side is marked in the table.