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Western Washington Weather Forecast

More sunshine & warmth Tuesday as spring arrives. Cooling with showers by late Wednesday and through the weekend. Mountain snow picks up again this weekend.

SEATTLE — Puget Sound Extended Forecast 

Tuesday: Patchy morning fog otherwise mostly sunny and a little cooler, but still warmer than average. Highs in the low to mid-60s

Wednesday: Increasing clouds. Chance of afternoon or evening showers. Cooler. Lows in the upper 30s to mid-40s. Highs in the mid and upper 50s.

Thursday: Partly sunny with occasional showers. Lows in the lower 40s. Highs in the mid to upper 50s.

Friday: Mostly cloudy with increasing rain later in the day. Lows in the lower 40s. Highs in the low to mid 50s.

Saturday: Rain at times. Cooler. Lows in the lower 40s. Highs in the upper 40s to low 50s.

Sunday: Partly sunny with a few showers. Lows in the upper 30s to mid-40s. Highs in the upper 40s to low 50s.

Discussion:

Our ridge of high pressure is beginning to weaken, but Tuesday will still be as nice as Monday was with a little more cloud coverage as slightly cooler temps.

Wednesday is the start of the return to reality. The high pressure that's been keeping us warm and clear finally breaks down, allowing multiple weather disturbances to move in through the first weekend of spring.

Wednesday will see increasing clouds and showers along the coast, with showers spreading into Puget Sound during the afternoon or evening. Weak high pressure moves through western Washington for a little sun and a few showers.

A more significant front moves in later Friday and Saturday for a wet start to the weekend, but Sunday should see more sun and only a few leftover showers. Highs over the weekend also drop to below normal, cooling to the upper 40s and low 50s.

The weekend keeps light showers in the mix each day, but accumulations look minimal (a few hundredths for most). Cool air moves in as well, dropping temperatures back down to normal (mid-50s) for the end of the week and even below normal (upper 40s) to start next week.

Light snow re-enters the equation as well. Snow levels stay between 3,000-4,000 feet through the end of this week, then drop to 2,000-2,500 for the weekend.

Spring officially starts Tuesday evening at 8:06 PM

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