Anyone know a weather god I can pray to?

On Wednesday morning, we're leaving for the annual Canada Day weekend camping trip (although Canada Day is not over a weekend this year, we've turned it into one).

We leave on Wednesday, spend three nights in tents and return home on Saturday night.

The first year, at Arrowhead Provincial Park, it rained. And rained. And rained.

The second year, at Arrowhead Provincial Park, it stormed. And rained. And was cloudy and cool.

This year, we're moving to Balsam Lake Provincial Park. And here's this week's forecast:
I think it's time to start praying to the weather god. Either that, or invest in some good quality rubber boots and rain jackets for all four of us.