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Can I Treat Weeds with Roundup® For Lawns Products When It's About to Rain?

There's no need to let a few clouds ruin your weed elimination fun.

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It all depends on how you define “about”

Roundup® For Lawns is rainproof in as little as three hours, so there’s no need to let a few clouds ruin your weed killing fun.

Make sure the temperature is between 45 and 90 degrees Fahrenheit1 for best results.

1Do not apply to bermudagrass when daytime temperatures exceed 85 degrees Fahrenheit.