Beta
    EventsArbitrageWhalesSocialLearnArticlesPortfolio
    Sign inBeta

    Weekly Market Brief

    Arbitrage alerts, platform updates, and top movers — one email per week.

    Real-time prediction market odds, cross-platform arbitrage, and market analytics — all in one place.

    About·Terms·Privacy·Editorial
    • How It Works
    • Getting Started
    • Best Apps
    • Fees Guide
    • Tax Guide
    • Settlement Rules
    • Glossary
    • All guides →
    • Kalshi
    • Polymarket
    • FanDuel Predicts
    • Robinhood
    • DraftKings
    • PredictIt
    • Kalshi vs Polymarket
    • All platforms →
    • Markets
    • Arbitrage
    • Whale Tracking
    • Leaderboard
    • Articles
    • Regulatory Tracker
    • State Checker
    • Politics
    • Economics
    • Crypto
    • Sports
    • Entertainment
    • Weather

    Disclaimer: PredictionMarkets.us provides arbitrage information, market data, and educational content for informational purposes only. We do not guarantee the accuracy, completeness, profitability, availability, or timeliness of any opportunities displayed on this page. PredictionMarkets.us is not responsible for: trading losses or financial damages, incorrect or outdated odds/pricing, delays in market updates, platform outages or exchange errors, failed trades or execution issues, account restrictions or limitations imposed by third-party platforms, changes in market conditions, tax or legal consequences resulting from trading activity. Users are solely responsible for conducting their own research and making their own financial decisions. Trading prediction markets involves risk, and past performance or displayed arbitrage opportunities do not guarantee future results. PredictionMarkets.us is not a broker, financial advisor, investment advisor, or gambling operator.

    © 2026 PredictionMarkets.US

    For informational purposes only. Not financial advice.

    1. Home
    2. Guide
    3. How Kalshi Weather Contracts Settle, Source Chain Explained
    Educational
    Kalshi
    Settlement

    How Kalshi Weather Contracts Actually Settle

    You placed a contract on tomorrow's high temperature. Here's exactly how Kalshi decides if you're right.

    Settlement source warning

    Weather contracts do not resolve based on your favorite weather app. They resolve based on the exact source, location, and rule set named in the contract.

    The source chain

    Kalshi uses the named weather source chain in the contract terms. For weather markets, the audited data here points to a primary NOAA station feed, then named fallbacks if that feed is unavailable.

    Primary

    1. NOAA ASOS station data

    This is the first place Kalshi checks for the contract's designated weather reading.
    Fallback 1

    2. NCEI Climate Data Online

    If the primary feed is delayed or unavailable, the contract terms can move to the next named source.
    Fallback 2

    3. NWS Daily Climate Report (CLI product)

    Final fallback if the earlier source chain is not available under the contract terms.

    What users expect

    "The hottest moment of the day where I am."

    "Whatever my weather app showed on the hourly chart."

    "The temperature that felt most real to me locally."

    What Kalshi measures

    The highest temperature recorded at the designated station named in the contract terms, using the contract's stated observation and rounding rules.

    Airport stations are common.

    The designated station may not be your backyard. That mismatch is one of the main reasons traders think settlement is wrong when the contract actually followed its own source.

    [Pending verification]

    Example ASOS station tickers still need verification against live Kalshi contract terms. Check the specific market rules before assuming which station applies.

    The part nobody explains well

    Rounding, observation windows, and delayed data are where most trader confusion starts.

    Temperature rounding

    [Pending verification]

    Contract-specific rounding behavior still needs verification against live Kalshi contract terms. Do not assume the headline number tells you how tenths are handled.

    Observation window

    [Pending verification]

    The exact observation window should be read from the contract terms. Weather traders get burned when they assume the window matches their app's display logic.

    Data delay risk

    Real-time weather apps, archived climate databases, and exchange settlement feeds can disagree temporarily. If the primary feed is delayed or unavailable, the named fallback can matter more than what you saw intraday.

    That does not automatically mean the market was cheated. It usually means the contract source chain was narrower than the weather information you were casually watching.

    Illustrative walkthrough

    This is a teaching example, not a verified live contract. It shows the logic chain you should apply before blaming settlement.

    1. Find the designated station in the contract terms.
    2. Check the observation window in the rules, not your app.
    3. Confirm the primary source and named fallbacks.
    4. Compare the final station reading to the rule set.
    5. Apply the contract's rounding behavior only if it is actually specified.

    Why this section stays cautious

    Exact station examples, window wording, and rounding behavior are pending verification against live Kalshi contract terms. This page is explaining the process honestly, not pretending we verified details we have not verified.

    If you think settlement was wrong

    Kalshi does not publish a formal trader dispute window. The audited oracle data describes trader escalation as support contact or Discord discussion, while final authority stays with the internal markets team.

    Resolution authority

    Kalshi Operations Team

    Contact Kalshi support

    Kalshi has no formal trader dispute mechanism. Traders may contact support, but final resolution remains internal.

    Kalshi vs Polymarket trust model

    Kalshi uses internal resolution authority tied to named contract sources. Polymarket global markets use an oracle-and-dispute flow with a challenge window and bond requirement.

    Polymarket dispute note: Global Polymarket markets use UMA-style challenge mechanics.

    Different system, different trust tradeoff. Kalshi is simpler to explain, but more centralized. Polymarket is more contestable, but harder for normal users to navigate.

    FAQ

    Related guides

    Platform transparency

    Read more →

    Kalshi guide

    Read more →

    How prediction market payouts work

    Read more →

    Kalshi controversy

    Read more →

    How Polymarket resolves weather — and the Roissy incident

    Read more →