Seattle Temperature Today
Live Seattle temperature at KSEA with 1-minute station data: running high and low, forecasts, Kalshi (KXHIGHTSEA, KXLOWTSEA) and Polymarket odds, and Robinhood UHSEA/ULSEA.
Start freeSeattle settlement stations
Each platform settles on one official station. These are the stations behind the Seattle temperature markets and how often we get their data.
- KSEASeattle-Tacoma InternationalKRPI1 min
Seattle market tickers
- Kalshi daily high: KXHIGHTSEA
- Kalshi daily low: KXLOWTSEA
- Robinhood and IBKR daily high: UHSEA
- Robinhood and IBKR daily low: ULSEA
- Polymarket daily high: highest-temperature-in-seattle-on-<date>
- Polymarket daily low: lowest-temperature-in-seattle-on-<date>
Seattle temperature market FAQ
- Which weather station settles the Seattle temperature markets?
- Kalshi, Robinhood, Polymarket and IBKR markets use Seattle-Tacoma International (KSEA).
- How do the Seattle temperature markets settle?
- Kalshi settles Seattle high and low markets on the official high or low for KSEA's NWS climate location, as reported by The Weather Company (then the National Weather Service). Polymarket settles on the hourly data ("Show Hourly Data") of NOAA's weather.gov timeseries for KSEA, in whole °F: the highest reading of the day for daily highs and the lowest for daily lows. Weather Underground's Daily Observations table is used only if NOAA's data for the day is unavailable by 11:59 PM ET the next day. Robinhood and IBKR list ForecastEx Seattle temperature contracts, which settle on the Weather Underground Daily Observations table for KSEA: the highest reading of the local calendar day for highs and the lowest for lows. The day is final once Weather Underground publishes the first observation of the next day.
- What are the Kalshi, Robinhood and Polymarket tickers for Seattle temperature?
- Kalshi lists the Seattle daily high under series KXHIGHTSEA and the daily low under KXLOWTSEA. Each day is its own event, such as KXHIGHTSEA-26OCT16 for October 16, 2026, with one market per strike. On Robinhood and IBKR, the ForecastEx Seattle daily high is UHSEA and the daily low ULSEA. Each contract is one strike on one day: UHSEA_101626_80 asks whether the high exceeds 80 °F on October 16, 2026, and ULSEA contracts ask whether the low is below a strike. Polymarket has no tickers. Its daily event is titled "Highest temperature in Seattle on October 16?" with the slug highest-temperature-in-seattle-on-october-16-2026, and the daily low event's slug starts with lowest-temperature-in-seattle.
- What are UHSEA and ULSEA?
- They are the ForecastEx daily high and low temperature products for Seattle, listed on Robinhood and IBKR. ForecastEx, not Kalshi, is the exchange. UHSEA contracts ask whether the day's highest temperature at Seattle-Tacoma International (KSEA) will exceed a strike, and ULSEA contracts whether the lowest will be below one, with strikes 1 °F apart. Both settle on Weather Underground's Daily Observations table for KSEA for the local calendar day. Kalshi's Seattle markets read the same station but settle on the official high or low for its NWS climate location as reported by The Weather Company, not on Weather Underground.
- Can I trade Seattle temperature markets on Coinbase?
- Yes. Coinbase lists Kalshi's Seattle temperature markets (KXHIGHTSEA, KXLOWTSEA) under the same tickers: the markets are operated by Kalshi, share Kalshi's order book and settle by Kalshi's rules, on the same station. Coinbase's prediction markets are not available to Nevada or Michigan residents.
- How often does minuteTemp update Seattle?
- KSEA updates temperature every minute, wind and humidity every 5 minutes. Paid plans refresh the dashboard every 60 seconds; the free plan is delayed 3 minutes.