High temperatures with cold weather clothes on (like a sweater) can outright kill a Sim. Being too hot or soaking wet can kill a Sim's mood and punish their skill gains, make friendly interactions fail more often and generally keep them down. During the worst parts of the winter or summer, climate control is needed. Blizzards, major thunderstorms, and even thunder snow can happen in-game. In the Sims 4 Seasons, the weather greatly impacts your Sims' moods both in and outside the home. A Sim is outside during a thunderstorm at Granite Falls in The Sims 4 Seasons Expansion Pack. The Sims 4 Seasons Weather Precipitation, Storms, Hot, and Cold Weather Effects on Sims Click to enlarge.
