KalshiCheck availabilityKYC requiredVerified resolution dataWell calibratedCurrent implied probability
78° to 79° 50.5%+21.0ptLeader of 6 outcomes
78° to 79° 50.5%+21.0ptMarket quality
55 / 100
Medium quality24h Volume
$29.5K
Open interest
$22.6K
Medium open interestMarket data
Updated 5 minutes ago
Sep 29, 26, 2:00 PM UTCOct 1, 26, 8:00 AM UTC
Trends
Venue terms
Source: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Early close:
- Yes
- Settlement timer:
- 5m (informational)
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Highest temperature in San Francisco on Oct 1, 2026?
KalshiLowest temperature in San Francisco on Sep 30, 2026?
KalshiRain in San Francisco in Sep 2026?
KalshiHighest temperature in San Francisco on October 1?
PolymarketHighest temperature in San Francisco on October 2?
PolymarketWill the highest temperature in San Francisco (SF)(SFO)(KSFO) exceed 79 F on September 30, 2026? (maximum) (max) (hottest)?
ForecastExRules
If the maximum temperature recorded at San Francisco (CLISFO) for Sep 30, 2026, is between 78-79° fahrenheit according to The Weather Company, then the market resolves to Yes.
Settles via:The Weather Company
- Not all weather data is the same. While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the Weather Company. Reading weather data Preliminary Weather Company data may be subject to rounding and conversion differences from the final reported value. Use caution when interpreting preliminary Weather Company readings. If it is determined in the sole discretion of the Exchange that there is a material error in the initial non-preliminary publication, Expiration may be held until the publication of a non-materially-erroneous data revision or until the Expiration Date, whichever comes first. If no data is available at the end of this period, all markets will resolve to the last fair price determined by Kalshi. Please note, a status of "Final" on weather.com/kalshi is provided for convenience only, and does not guarantee data to be error-free and thus exempt from the above.
Rules for each outcome
- 78° to 79°
- If the maximum temperature recorded at San Francisco (CLISFO) for Sep 30, 2026, is between 78-79° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 76° to 77°
- If the maximum temperature recorded at San Francisco (CLISFO) for Sep 30, 2026, is between 76-77° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 80° to 81°
- If the maximum temperature recorded at San Francisco (CLISFO) for Sep 30, 2026, is between 80-81° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 82° to 83°
- If the maximum temperature recorded at San Francisco (CLISFO) for Sep 30, 2026, is between 82-83° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 84° or above
- If the maximum temperature recorded at San Francisco (CLISFO) for Sep 30, 2026, is greater than 83° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 75° or below
- If the maximum temperature recorded at San Francisco (CLISFO) for Sep 30, 2026, is less than 76° fahrenheit according to The Weather Company, then the market resolves to Yes.