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7 DAY FORECAST
HOURLY
52
Broken Clouds
Tuesday-
Rain
59
46
90%
59
46
Rain
Precipitation90%
Wind19mph SSW
Humidity73%
UVLow
Wednesday-
Rain/Wind
60
52
100%
60
52
Rain/Wind
Precipitation100%
Wind28mph S
Humidity79%
UVLow
Thursday-
AM Rain
56
46
100%
56
46
AM Rain
Precipitation100%
Wind22mph S
Humidity85%
UVLow
Friday-
Scattered Showers
54
44
50%
54
44
Scattered Showers
Precipitation50%
Wind14mph SSW
Humidity78%
UVLow
Saturday-
Rain/Wind
55
51
90%
55
51
Rain/Wind
Precipitation90%
Wind14mph SSE
Humidity84%
UVLow
Sunday-
AM Showers
57
50
40%
57
50
AM Showers
Precipitation40%
Wind11mph SSW
Humidity88%
UVLow
Monday-
AM Showers
60
49
40%
60
49
AM Showers
Precipitation40%
Wind8mph S
Humidity86%
UVLow
RIGHT NOW
Precipitation20%
Wind13mph S
Humidity83%
UVLow
Visibility10 miles
52
20%
54
40%
55
90%
55
90%
56
70%
57
10%
58
40%
59
20%
59
20%
59
20%
59
20%
58
0%

Latest Weathercast

WEATHERCAST

Interactive Radar

Radar

Latest Forecast


Updated Monday 3:20 p.m.

The pendulum has swung...

No longer is it the sun staking a claim to the majority of the seven day forecast. It's time for its traditional hibernation as the calendar flips into the second half of October.

A series of three storms due in this week promise to bring not only the most rain we've had since a storm in early June, but our first generally windy day of the autumn. The wind doesn't look like too much of a bother, but the rainfall could cause some flooding in some of the mountain-fed rivers and urban flooding where those pesky leaves have clogged storm drains.

Clouds have already arrived in the Puget Sound region with rain nudging the northwest coast as of Monday evening. Rain will mainly hang out in the North Sound overnight with cloudy skies elsewhere as lows drop into the 40s.

Rain will develop in the Puget Sound area Tuesday morning and it'll be a ho-hum rainy and breezy day with gusts to about 25-35 mph in the lowlands and a few inches of rain in the Olympics. Rain will briefly taper off late Tuesday into Tuesday night, but the break won't last long.

A stronger storm comes in on Wednesday -- this one is wetter and windier as it's part of an "atmospheric river" -- a fancier term for Pineapple Express. Rain will redevelop Wednesday morning and it'll keep raining rather heavily into Thursday morning. In the lowlands and Seattle area, forecast charts expect 1-3" of rain by Thursday morning (although the Olympic Rain Shadow will keep rainfall totals significantly lighter in the North Sound lowlands.) Steady rains will linger into Thursday morning then taper to showers in the afternoon. The Euro model is predicting about 2.2 inches of rain in the Seattle area over the two-day period meaning some likely flooded streets in urban areas due to clogged storm drains.

Significant rain will fall in the Olympics and North Cascades but rivers should be low enough now to handle much of the rain, except maybe some minor flooding on the Skokomish.

Winds will be noticeably breezy as well, gusting perhaps as high as 35-40 mph later Wednesday into Wednesday night.. That's nothing really concerning except that with it being the first wind of the season, fully-leaved trees will catch the winds more and are more prone to falling, plus any dead branches from the record-dry summer will have their first opportunity to blow off, and perhaps taking some power lines with it. So I'd expect some power outages peppered around the region, but not too many and nothing that should cause significant damage or cause major delays in power restoration.

Highs will be in mid-upper 50s both days, perhaps nearing 60 on Thursday, but this is a muggy, tropical rain 60 not a pleasant nice day 60.

We'll taper off to frequent showers later Thursday and Friday with highs dropping into the low-mid 50s. Could eke out a few sunbreaks on Friday.

But lo and behold, another atmospheric river is pegged to return on Saturday and Sunday for another round of heavy rains and blustery winds. Both rain and wind look similar in amount and speed with this storm, only now the rivers will have a lot more water in them so there is greater potential for some mountain-fed river flooding, especially on the Olympic and North-Cascade-fed rivers. Highs will be in the upper 50s to near 60.

Long range forecasts do dry us out a bit for next week. Maybe the sun will at least wake up for a brief appearance for a snack or something?

Scott Sistek
KOMONews.com Meteorologist
Follow me on Twitter @ScottSKOMO and on Facebook at Scott Sistek KOMO

SUNRISE
07:31:09 am
SUNSET
06:16:57 pm

Today's Record Temperatures

Record High74
F
Record Low34
F