I checked the forecast and here's what I got:
National Weather Service
Nights in the 40s is totally doable, even pleasant. But in the 30s? No. Don't wanna do that, even if the difference is mostly psychological. Do I trust the two optimistic forecasts or go with the pessimistic one?
Fortunately (or unfortunately), there's the actual recorded weather from the past 24 hours:
Twenty-five degrees? How could the forecasts be so far off? Time to formulate a different plan.