iRacing Season 4 2026: Weather Rerolls Expand to 34 Official Series

iRacing has announced an expansion of its per-race weather regeneration system for the 2026 Season 4 update, rolling out the feature across 34 official racing series. The change introduces dynamic weather conditions and expanded rain possibilities to official races, allowing for greater variety in track conditions across multiple race sessions.

The weather reroll mechanic enables races within participating series to feature different atmospheric conditions, potentially including precipitation scenarios that were previously unavailable or limited in official competition. This expansion represents a significant step in iRacing's ongoing effort to increase environmental variability and realism across its competitive platform.