KalshiCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedCurrent implied probability
No 64%
Market quality
60 / 100
Medium quality24h Volume
$1.1K
Liquidity
$5.2K
Medium liquidityBid / Ask
33.0% / 38.0%
Spread
5.0 pt
Moderate spreadMarket data
Updated 11 minutes ago
Aug 27, 26, 2:00 PM UTCOct 16, 26, 3:59 AM UTC
Trends
Related Markets
Related questions for context, not a comparison of equivalent contracts.
This Aug 2026 is the hottest August ever?
KalshiWill 2026 be the hottest year ever?
KalshiWhere will 2026 rank among the hottest years on record?
PolymarketWill summer 2026 be France's hottest summer on record?
PolymarketSeptember 2026 1st, 2nd, or 3rd hottest on record?
PolymarketWill 2026 be the hottest year ever?
KalshiRules
If Sep 2026 is the hottest September ever, then the market resolves to Yes.
Settles via:NCEI
Prediction Source Comparison
Open markets
WeatherKALSHIHighest temperature in Los Angeles on Sep 8, 2026?
- 88° to 89°+7.0pt33.6%
- 90° or above+18.0pt32.7%
- 86° to 87°-13.0pt23.1%
+3 more outcomes
- Total Vol
- $274.9K
- 24h Vol
- $267.9K
KALSHIWhere will it rain on Sep 8, 2026?
- Houston+69.0pt99%
- Minneapolis+6.0pt99%
- Los Angeles+71.0pt75%
+19 more outcomes
- Total Vol
- $229.5K
KALSHIHighest temperature in Miami on Sep 8, 2026?
- 92° to 93°+43.0pt89.3%
- 94° or above+2.0pt6.8%
- 90° to 91°-36.0pt1%
+3 more outcomes
- Total Vol
KALSHIHighest temperature in New York City on Sep 8, 2026?
- 80° to 81°+25.0pt70.9%
- 82° to 83°-15.0pt22.3%
- 79° or below-4.0pt3.9%
+3 more outcomes
- Total Vol
POLYMARKETHighest temperature in Chengdu on September 9?
- 27°C+60.0pt93.9%
- 28°C-13.5pt6.1%
- 21°C or below-1.4pt0%
+8 more outcomes
KALSHIWill a hurricane make landfall in Hawaii in 2026?
- No92%
- Yes-7.0pt8%
- Total Vol
- $77.5K
- 24h Vol
- $33.2K
- Highest temperature in Chicago on Sep 8, 2026?
- Highest temperature in Munich on September 9?
- Highest temperature in Austin on Sep 8, 2026?
- Highest temperature in Minneapolis on Sep 8, 2026?
- Largest IPO by market cap in 2026?
- Highest temperature in Tokyo on September 9?
- Highest temperature in San Francisco on Sep 8, 2026?
- Highest temperature in Philadelphia on Sep 8, 2026?
- Highest temperature in Houston on Sep 8, 2026?
- Highest temperature in Dallas on Sep 8, 2026?
- Highest temperature in Boston on Sep 8, 2026?
Frequently asked questions
- What are the current odds for This Sep 2026 is the hottest September ever??
- Kalshi prices No at 64% as of September 8, 2026.
- When does This Sep 2026 is the hottest September ever? resolve?
- This Sep 2026 is the hottest September ever? is scheduled to resolve on October 16, 2026.
- How is This Sep 2026 is the hottest September ever? settled?
- Kalshi settles this market as follows: If Sep 2026 is the hottest September ever, then the market resolves to Yes.
- Where else is This Sep 2026 is the hottest September ever? listed?
- The same question is also listed on Manifold Markets.