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Can I Treat Weeds When It's About to Rain?
For best results, we recommend using Roundup® Weed & Grass Killer products on dry, warm, wind-free days. But if it’s about to rain, fear not — all of our products should dry and become waterproof within 30 minutes to two hours — some even faster.
A wind- and rain-free day above 60° F helps prevent drift and helps speed up drying of Roundup® Weed & Grass Killer products.
![sun](https://smg.widen.net/content/v2lvnoht5n/jpeg/illustration-sun2.jpg?crop=false&position=c&q=30&u=vedgwv&w=420)
Weeds love to sprout after it rains, which is why waiting for dry conditions is ideal. Waiting for rain-free days also ensures that Mother Nature won't wash away any of the product before it goes to work on the weed
![rain clouds](https://smg.widen.net/content/cvfjohhi1u/jpeg/illustration-clouds-with-rain.jpg?crop=false&position=c&q=30&u=vedgwv&w=420)