I run aeroshell 15W50 in my lycoming 360 AK4 engine.

I am planning a trip to Ohio the second week of November where the weather
forecast is for upper 40s low 50's during the day and 30's at night. I
plan to say a week.

Do I need to adjust my oil accordingly, like get an oil change with a
different viscosity b4 departing?

Thanx in advance.

Allen