HIM forecast: 50 degrees and raining

How much rain and is 50 the high for the day, or the temp in the morning?  Frankly I would consider that forecast a gift and earn myself a little PR...

If we're talking drizzle and temps that reach 60s eventually, I wouldn't wear anything different unless you're a "freeze baby."  I had an early season sprint with those temps and I wore a light bike jacket for the ride and was thankful for the weather on the run (sans jacket).

Edit to add:  I would consider wearing gloves and a pair of wool socks if they fit with your tri shoes.   I've rode in pouring rain with no shoe covers, but socks, and was fine.  45 degrees or so.  Wool socks are magical.

That's an awesome forecast!!!  If you have lived in Seattle for awhile, then you should be used to a little rain.

I'd go for the toe covers and arm warmers.  The arm warmers will be difficult to put on but are easy to slide down if you get warm.  A jacket will likely force you to stop during the bike ride to remove it when you get warm.

Remember to avoid painted lines in the rain.  They are very slick.  It also takes longer to brake.  Good luck!!!

Thanks for all the feedback.  It's my first 70.3, so I guess I'm in that pre-race jitters phase where even the slightest bad news gets me nervous

To clarify, the low that day is 49, and the high is 53, with wind and rain.  I have lived in Seattle for about 10 years, so I'm used to a bit of rain but I lose circulation in my toes and fingers very easily.  I'll likely will go with toe covers and gloves.  Possibly the arm warmers as well.

Thanks again!