Never say never, even in California. You most likely would not mind the rain, the temperature is another matter. We had the up and down temps for a couple of weeks. Heater on in the early AM and A/C after 2 PM. Hope the tomatoes forgive you.

Oh, I hope NOAA is correct. We could use the rain.
I planted my tomato plant in early spring, then came a heat wave and only two tomatoes set. We ate them yesterday and they were delicious.
The plant has a lot of flowers and tomatoes in different stages, but the plant may turn tempremental (pun intented) and shut down.
This may be a two tomato summer.