Highest temperature in Dallas on April 21? is a closed prediction market event on Polymarket with 11 markets, $85.1K total volume, and N/A in liquidity. Key markets: Will the highest temperature in Dallas be 64°F or higher on April 21?; Will the highest temperature in Dallas be 45°F or below on April 21?; Will the highest temperature in Dallas be between 46-47°F on April 21?.