SEATTLE — Memorial Day is coming up on Monday, May 25. It’s the earliest day in the calendar that we observe Memorial Day.
The holiday used to be observed on a fixed date: May 30th every year.
That changed because of a law passed in 1968 called the Uniform Monday Holiday Act, which took effect in 1971.
The law moved several federal holidays to Mondays so Americans could have more consistent three-day weekends. Now, Memorial Day is the last Monday in May.
Memorial Day has been observed (counting 2026) in May on:
- 25th: 8 times.
- 26th: 8 times
- 27th: 8 times
- 28th: 7 times
- 29th: 8 times
- 30th: 8 times
- 31st: 7 times
That’s 54 occurrences. Knowing that, it’s tricky to give you a specific average forecast for the holiday, because it’s on a rotating date.
Figuring this out will require going through years of data, however, I’m having a good hair day...so that’s what I’m gonna do!
Average Memorial Day:
- Average High: ~68.4°
- Average Low: ~50.7°
- Average Mean Temp: ~59.6°
- Average Daily Precipitation: ~0.06″
The forecast for Memorial Day 2026 looks cooler than average. Say about 62-64°, with mostly cloudy conditions and a few showers.
Most of any rain coming in, there isn’t much, will come in late Sunday overnight into early Monday.
We’ll continue to watch for details as we get closer!
-Nick Allard
©2026 Cox Media Group
