IBKR Weather and Temperature Markets

Interactive Brokers lists ForecastEx daily high (UH) and low (UL) temperature contracts in 24 cities, settled on Weather Underground, and Kalshi's daily high in 7, settled by Kalshi's rules.

What IBKR lists

IBKR's ForecastTrader lists two kinds of temperature contracts from two exchanges:

  • ForecastEx daily high and low. A UH (high) and UL (low) product for each of 24 cities, named by region, such as UHLGA and ULLGA for New York. These are the same contracts Robinhood lists, under the same tickers and rules, plus New Orleans (UHMSY, ULMSY), which Robinhood does not list.
  • Kalshi daily highs. Kalshi's daily high series in Austin, Chicago, Denver, Houston, Los Angeles, Miami and New York. These are Kalshi markets and settle on Kalshi's stations by Kalshi's rules. IBKR does not list Kalshi's daily lows.

IBKR does not list ForecastEx's hourly (HRU) contracts; those are on Robinhood. On a minuteTemp city page, pick IBKR in the market toggle to see the ForecastEx contracts on the station they settle on.

How IBKR temperature markets settle

ForecastEx: Daily high and low contracts settle on the Weather Underground Daily Observations table for the named station and date: the highest temperature shown for highs and the lowest for lows, over the station's local calendar day. A day is final once the first observation of the next day is published, and settlement is normally no later than the day after expiration. Gaps in the day's observations are not filled in: the published table counts as it is. The rules are ForecastEx's Daily Temperature Contract Terms.

Kalshi contracts follow Kalshi's rules

The Kalshi daily highs on IBKR settle on the official high for the station's NWS climate location as reported by The Weather Company (then the National Weather Service), not on Weather Underground, and can read a different station than the ForecastEx contract for the same city. See Kalshi weather markets and how temperature markets settle.

IBKR ForecastEx tickers by city

The ForecastEx daily products on IBKR and the station each settles on. The city links open the city page on IBKR's contracts.

CityDaily highDaily lowSettles on
AtlantaUHATLULATLKATL Hartsfield-Jackson Atlanta
AustinUHAUSULAUSKAUS Austin-Bergstrom International
BostonUHBOSULBOSKBOS Boston Logan International
CharlotteUHCLTULCLTKCLT Charlotte Douglas International
ChicagoUHMDWULMDWKMDW Chicago Midway
DallasUHDFWULDFWKDFW Dallas/Fort Worth International
DenverUHBKFULBKFKBKF Buckley Space Force Base
DetroitUHDTWULDTWKDTW Detroit Metropolitan Wayne County
HoustonUHHOUULHOUKHOU Houston Hobby
JacksonvilleUHJAXULJAXKJAX Jacksonville International
Las VegasUHLASULLASKLAS Las Vegas Harry Reid International
Los AngelesUHLAXULLAXKLAX Los Angeles International
MiamiUHMIAULMIAKMIA Miami International
MinneapolisUHMSPULMSPKMSP Minneapolis-Saint Paul International
NashvilleUHBNAULBNAKBNA Nashville International
New OrleansIBKR onlyUHMSYULMSYKMSY New Orleans Louis Armstrong International
New YorkUHLGAULLGAKLGA LaGuardia Airport
Oklahoma CityUHOKCULOKCKOKC Will Rogers World Airport
PhiladelphiaUHPHLULPHLKPHL Philadelphia International
PhoenixUHPHXULPHXKPHX Phoenix Sky Harbor International
San AntonioUHSATULSATKSAT San Antonio International
San FranciscoUHSFOULSFOKSFO San Francisco International
SeattleUHSEAULSEAKSEA Seattle-Tacoma International
Washington D.C.UHDCAULDCAKDCA Ronald Reagan Washington National

Kalshi daily highs on IBKR

The Kalshi series IBKR lists and the station Kalshi settles it on. minuteTemp shows these markets under Kalshi on each city page.

CityKalshi seriesSettles onForecastEx station
AustinKXHIGHAUSKAUS Austin-Bergstrom InternationalSame station
ChicagoKXHIGHCHIKMDW Chicago MidwaySame station
DenverKXHIGHDENKDEN Denver InternationalDiffers: KBKF Buckley Space Force Base
HoustonKXHIGHTHOUKHOU Houston HobbySame station
Los AngelesKXHIGHLAXKLAX Los Angeles InternationalSame station
MiamiKXHIGHMIAKMIA Miami InternationalSame station
New YorkKXHIGHNYKNYC New York City Central ParkDiffers: KLGA LaGuardia Airport

IBKR weather markets FAQ

What temperature markets does IBKR list?
ForecastEx daily high (UH) and low (UL) contracts in 24 cities, and Kalshi's daily high in Austin, Chicago, Denver, Houston, Los Angeles, Miami and New York. IBKR does not list ForecastEx's hourly (HRU) contracts, which are on Robinhood.
How do IBKR's ForecastEx temperature contracts settle?
Daily high and low contracts settle on the Weather Underground Daily Observations table for the named station and date: the highest temperature shown for highs and the lowest for lows, over the station's local calendar day. A day is final once the first observation of the next day is published, and settlement is normally no later than the day after expiration. Gaps in the day's observations are not filled in: the published table counts as it is.
Are IBKR's ForecastEx contracts the same as Robinhood's?
Yes. ForecastEx is the exchange, and Robinhood and IBKR are brokers, so both list the same daily contracts under the same tickers and rules. IBKR also lists New Orleans (UHMSY, ULMSY), which Robinhood does not.
How do the Kalshi contracts on IBKR settle?
By Kalshi's rules, on Kalshi's station: the official high for the station's NWS climate location as reported by The Weather Company (then the National Weather Service), not on Weather Underground. IBKR lists Kalshi's daily highs only, not its lows.
Does IBKR's New York market use LaGuardia or Central Park?
Both, for different contracts. The ForecastEx contracts (UHLGA, ULLGA) settle on LaGuardia Airport (KLGA). Kalshi's KXHIGHNY, which IBKR also lists, settles on New York City Central Park (KNYC), so the same day can settle on two different highs.