**Trader sentiment for Denver’s lowest temperature on August 30, 2026, centers on the 60–67°F range, with the top outcomes (64–65°F at 36.5%, 66–67°F at 34.0%, and 60–61°F at 31.5%) reflecting tight clustering around official forecast guidance.** Current National Weather Service and private model consensus points to an overnight minimum in the upper 50s to mid-60s, driven by lingering cloud cover, elevated dew points near 50–55°F, and light winds that limit radiative cooling at Denver’s high elevation (~5,280 ft). Late-summer conditions, including a weak disturbance supporting scattered afternoon/evening thunderstorms on the 30th, help trap heat overnight and prevent sharper drops typical of clear, dry nights. **Scientific factors differentiating these closely matched bins include small uncertainties in cloud timing, boundary-layer moisture, and model spread on minimum temperatures.** Greater cloud persistence or higher dew points would favor the lower 60s by enhancing downward longwave radiation, while clearer skies or drier air could allow more cooling toward 60°F or below. Historical August 30 averages (high ~85°F, low ~55°F) provide context, but the current pattern—mild advection and no strong cold front—supports the market’s narrow distribution. The next NWS forecast updates and evening model runs will likely refine these probabilities as the overnight period approaches.