The weather forecast for frid sat sun is
Frid 90 % chance of rain 11 – 18 deg c
Sat light showers 11- 17 deg c
Sun possible afternoon shwrs 9 -18 deg c

So it will probably rain some time over the weekend and the daytime temp is great for hiking with the nighttime temp remaining quite acceptable.
So make sure you take a lightweight waterproof jacket and wear good waterproof v boots.
Good luck hikers - see you on Sunday at the finish line .