It's genuinely true every time I've told a couple how we have a great success rate with good weather at weddings! Across six wedding seasons, we've only had two quite rainy weddings. But those two days were incredible, and our couples had the most fantastic time. Don't worry about the weather; just prepare for it. Ensure you've got a big enough structure for mingling as well as dining with an extra structure or shelter like a stretch tent in addition to the main marquee to ensure any outdoor aspects of the day, like the ceremony, can continue rain or shine. Have umbrellas on standby and consider a marquee heater. Ensure deliveries and suppliers don't drive across the key areas of the site, as it can quickly create muddy tracks. Use matting to create walkways along the main routes across the site for guests to walk on.