Highest temperature in Chicago on Sep 8, 2026? — 87° to 88°
kalshi · open the market ↗ · closes 2026-09-09T06:00 · claim page
Was there ever a window?
Unknown. the cited sources carry no publication date.
- Price reached near-certainty: 35d ago
- Earliest cited source published: undated
- Price as shown: not current — not adjudicated. The residual below is from the last sweep and may have closed since.
What the contract requires
Condition. The maximum temperature recorded at Chicago (CLIMDW) on September 8, 2026, as reported by The Weather Company is between 87°F and 88°F inclusive.
Named authority. The Weather Company
Form the evidence must take. The official and final value is the maximum temperature as reported by The Weather Company. The rules state: 'the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company.' Preliminary data is subject to rounding and conversion differences; the non-preliminary publication is authoritative. If a material error is found in the initial non-preliminary publication, a corrected revision may be used.
Does not count.
- Preliminary Weather Company data subject to rounding and conversion differences
- Data from sources other than The Weather Company (e.g., AccuWeather, Google Weather)
- Data that is materially erroneous in the initial non-preliminary publication (until corrected)
Deadline. The Expiration Date of the market (after September 8, 2026), with possible extension if a material error is corrected before then. If no data is available by the Expiration Date, the market resolves to the last fair price.
- Chicago (CLIMDW) — The specific weather station identified by the code CLIMDW in Chicago. The exact location is not further defined in the rules.
- maximum temperature — The highest temperature recorded at that station on that calendar day, as per The Weather Company's methodology.
This venue published no resolution text for this contract, so the condition above is inferred from the question alone.
What the sources establish
No evidence in the supplied sources addresses the maximum temperature at Chicago CLIMDW on September 8, 2026, as reported by The Weather Company. Without such evidence, the condition cannot be confirmed as met or not met.
The evidence is not in the form this contract requires. The resolution criteria require the maximum temperature at Chicago (CLIMDW) on September 8, 2026, as reported by The Weather Company. None of the provided sources contain a report from The Weather Company or any data about that specific station and date.
The event may well have happened. This contract does not resolve on that alone.
The named authority has not established this. The sources below report the event; the contract resolves on what its named source says.
A report from The Weather Company showing the maximum temperature at Chicago (CLIMDW) on September 8, 2026, that falls between 87°F and 88°F inclusive, or a report showing a value outside that range, or a statement that no data is available by the expiration date.
Sources it was read from
8 retrieved but not cited
Adjudicated 34d ago · retrieval: newsrag. This is a reading of retrieved documents by a language model, not a settlement. The venue's named authority is the only thing that resolves a market, and it is often slower than the news.