weatherblog

(4/6) Warmest day of year Thursday, then colder into the weekend

As high pressure continues to build into Thursday, we’ll have a somewhat warmer start but definitely the warmest afternoon of the year so far on Thursday with highs in the 60s north of Seattle and in the low to mid 70s from Seattle south. We’ll have some clouds around but some sunshine combined with easterly wind flow out of the Cascades (downslope wind flow promotes warming in the lowlands) we should get to 70 in Seattle. Not record warmth (tomorrow’s daily record high for Seattle is 78° set on 4/7/2016) but very nice.

Unfortunately, that short taste of near-summer warmth ends quickly and rain moves back in for Friday morning, tapering that afternoon with highs back in the 50s.

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The weekend forecast into early next week will be chilly and unsettled with periods of rain and mountain snow and unusually low snow levels by Sunday and Monday. While rainfall doesn’t look particularly heavy by Sunday (and we’ll have some sunshine) we could see some wet snow mix in with any showers down under 500 feet in elevation to begin Sunday. Highs will be in the 40s this weekend with lows in the 30s in the lowlands. A stronger weather system brings more rain Monday but it stays cool so on Monday morning too we could see a rain/snow mix. However, given the time of year and the lack of sub-freezing temperatures, any lowland snowfall or rain/snow mix shouldn’t accumulate much, if at all.

We’ll see a slow drying trend starting Tuesday but it stays cooler than average for much of next week. No second taste of summer again anytime soon.

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