If a power washing job is scheduled and the forecast calls for rain, many people wonder: can the work still go on? The short answer is yes — power washing can be done in the rain — but whether it should depends on a few key factors.

When It’s Safe (and Sometimes Beneficial)

Light rain isn’t usually a dealbreaker for power washing. In fact, it can sometimes help by softening dirt and grime, making it easier to wash away. As long as there’s no lightning, heavy wind, or downpour, most professionals can safely continue working.

In commercial and residential settings, rain can actually reduce airborne dust and help prevent detergent from drying too quickly on surfaces.

Factors to Consider

  • Safety First: Wet conditions increase the risk of slips and electrical hazards. Pros know how to manage these risks, but DIYers should be especially cautious.
  • Effectiveness: Too much rain can dilute cleaning agents or rinse them off before they have time to work — making the job less effective.
  • Visibility & Control: Heavy rain can reduce visibility and make it harder to control spray direction and coverage.
  • Surface Type: Porous materials may absorb excess water, which can interfere with treatment and drying.

When to Call the Pros

Professionals know how to adapt to weather conditions and will assess whether it’s safe and effective to proceed. If rain is light and conditions are safe, there’s no reason to postpone. But when visibility, runoff, or product performance is at risk, they’ll reschedule — protecting both your property and the results.