The ideal temperature range for staining wood is between 50 and 90 degrees Fahrenheit. However, the optimal temperature for staining wood is around 70 degrees Fahrenheit. Some brands or types of stains may work outside that range, but it’s the generally accepted best temperature for staining wood. Oil-based stains are the best for staining wood in cold weather, as they do not rely on evaporation to dry out. Oil-based brands can perform in temperatures as low as 35 degrees Fahrenheit. However, oil-based stains take longer to dry, even in cold weather, so be sure to follow the product’s instructions. If you can’t avoid staining wood in cold weather, apply the stain in a heated garage and give the wood a bit of time to warm up. It is important to note that the temperature range refers to the temperature of the wood surface, not the air. The suggested temperature range for applying deck stain is on average 45-95 degrees Fahrenheit. Ultimately, the goal is to stain your deck when the following conditions are present: below 90 degrees Fahrenheit, above 50 degrees Fahrenheit, and it’s a cloudy day, or the deck is in the shade.