Update Location
Enter a ZIP code to get product recommendations and information tailored to your area.
There's no need to let a few clouds ruin your weed elimination fun.ï»ż
It all depends on how you define “about”
RoundupÂź For Lawns is rainproof in as little as three hours, so thereâs no need to let a few clouds ruin your weed killing fun. Make sure the temperature is between 45 and 90 degrees Fahrenheit* for best results.
*Do not apply to bermudagrass when daytime temperatures exceed 85 degrees Fahrenheit.