Electrical Outlets not working after pressure washing my house
Probably one GFCI protected receptacle outside got water in it. This could trip a GFCI. If it is a GFCI that has tripped, then some GFCI receptacle or GFCI breaker should be in the tripped state. The GFCI receptacle itself may be inside and not gotten wet, but if some outside receptacle on the load side of a GFCI gets wet it can trip the dry GFCI.
You can dry these out by removing just the cover plate of any outside receptacles that could have gotten wetted and blowing dry air such as a hair dryer on low heat high fan. Better might be a leaf blower or shop vac exhaust. Even any vac on suction might work.