After a warm/dry start to June, we have transitioned to a cooler, wetter pattern. Here is the precipitation from Seattle Rainwatch, which is only valid around the Puget Sound region. Lots of folks had .2 to .5 inches, with greater amounts in the foothills.
Saturday will be the best day of the weekend as a weak ridge is established over the Northwest: plenty of clouds and temperatures only reaching the lower to mid-60s. Here is the upper-level map for 8 AM Saturday: you can see the weak ridge and a moderate trough looming offshore.
But now the good news for gardeners. Soil temperatures have substantially warmed and virtually all seeds should germinate fine if they are watered. Here are the latest soil temperatures (8 inches down) from the WSU AgWeatherNet:. Mid-60s at Puget Sound locations and 70s east of the Cascades.
To see how far we have come, here are the soil temps in Seattle since April 1st. From lower 50s to upper 60s.
As you can see from the following table, most seeds should germinate now, even those who like warm conditions (such as eggplant)
Soil temperatures an inch down should be warmer than the above during the day and cooler at night.