Recent forecasts from the National Weather Service and local models point to a daily high near 90–91°F in Austin under partly to mostly cloudy skies with a 40–60% chance of isolated afternoon thunderstorms. These conditions introduce key uncertainty, as early convective clouds and evaporative cooling from scattered showers can suppress peak temperatures by 1–3°F through reduced solar insolation, while clearer breaks allow stronger afternoon heating toward 92–93°F. Mid-June climatology supports highs averaging 91–93°F amid rising solar angles and typical subtropical moisture, but model consensus remains split on the exact timing and coverage of convection. Traders therefore price the two leading bins nearly even, reflecting sensitivity to the latest short-range guidance on cloud trends and storm initiation.