PolymarketCheck availabilityNo KYC2% feeVerified resolution dataFairly calibratedCurrent implied probability70-71°F 37%+4.0ptLeader of 11 outcomes
Market quality
50 / 100
Medium quality24h Volume
$9.9K
Liquidity
$29K
High liquidityBid / Ask
- / 3.0%
Market data
Updated 6 minutes ago
Jul 27, 26, 1:05 AMJul 28, 26, 12:00 PM
Trends
Paper funds only — no real moneyNot financial advice
Selected outcome
70-71°F40%
Compare venues· 70-71°F
Ranked by market quality, then liquidity and 24h volume| Venue | Quality | Probability | vs reference | 24h Vol | Liq | Freshness | |
|---|---|---|---|---|---|---|---|
 KalshiBest overall86% match · auto | Medium | 50% | — | $4.8K | $4.6K | 26 minutes ago | Open → |
| PolymarketThis pageMost active | Medium | 40% | — | $9.9K | $29K | 6 minutes ago |
Also available on Kalshi
Highest temperature in San Francisco on Jul 28, 2026?
1d
46.7%
34.6%
14%
+3 more outcomes
68 • Medium qualityTight spreadMedium liquidityHigh ambiguity
Total Vol$5K
24h Vol$4.8K
KALSHIRules
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 28 Jul '26.
- The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO.
- To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
- This market can not resolve until the first data point for the following date has been published on the resolution source.
- The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F).
- Thus, this is the level of precision that will be used when resolving the market.
Probabilities may differ due to different market structures, fees, and participant pools.
Volume trend
$9.9kJul 272d of dataJul 28
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Rules
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 28 Jul '26.
- The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO.
- To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
- This market can not resolve until the first data point for the following date has been published on the resolution source.
- The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F).
- Thus, this is the level of precision that will be used when resolving the market.