These are planning windows. Confirm actual dates, hours, tickets and weather policies with each organizer.

It can flag thunderstorm potential, but it cannot predict an exact lightning delay days ahead. Follow event staff and current alerts.

These are experimental editorial rules, not a trained model. We start at 100 and subtract 2.4 points per degree outside 60–82°F, 2 per mph above 15 mph, 0.65 per rain-chance point, and 1.4 per gust mph above 20. Feels-like temperature replaces air temperature when available. Half of a window’s rating comes from its average hour, half from its lowest-rated hour. Storm or wintry wording, or feels-like temperatures at or above 100°F or at or below 20°F, cap the window at Plan B weather. Great fit starts at 80, good fit at 65, and mixed bag at 45. Scores are comfort comparisons, not safety clearance.

Unknown rain, missing hours or forecasts older than 12 hours are not rated. No rating confirms that a venue is open.

Sources: NWS forecast API and NWS outdoor lightning guidance. If thunder is heard, move indoors and wait at least 30 minutes after the last thunder before returning outside.