Rain heads our way Saturday

A rainstorm fed by moisture from a tropical typhoon is approaching the Pacific Northwest coast and set to strike inland by late morning on Saturday.

National Weather Service forecasters said the heaviest rainfall will hit in North Idaho, mountain areas of northeast Washington and the Cascades.

But the Spokane region and areas on the eastern edge of the Columbia Basin could see up to a quarter inch of rain.

The storm is expected to start tapering off Saturday evening, but it will also carry gusty southwest winds with it.

Highs both on Saturday and Sunday may reach the upper 60s to lower 70s.

Shower chances drop off on Sunday so that by afternoon, skies should be partly sunny.

However, gusty winds are likely to persist through the day Sunday.

Mostly sunny weather returns next week with highs in the middle 60s and lows in the 40s.

In a related event, a partial eclipse of the moon occurred after the moon set in Spokane this morning/ Mike Prager , SR.

Question: Why does rain hit on the weekends?