Fleeting 70 degree weather in late September for Seattle

Sunshine, milder temperatures on Monday

Monday will be sunny and warmer, as a weak ridge of high pressure nudges into the Pacific Northwest. Temperatures will still be below average.

People in Seattle will be treated to warm sunshine and highs in the 70s on Monday. However, this warmth will be short-lived. Temperatures for the rest of this week will range in the 60s.

Cloudy and cooler weather is expected in Seattle beginning Tuesday.

Seattle will only experience one day in the 70s this week - that will be on Monday. (FOX 13 Seattle)

The average high for today at Sea-Tac Airport is 72. A few communities woke up to fog, but increasing sunshine is forecast for the rest of the day.

Cooler and cloudier weather will be back in Seattle Tuesday.

Highs will cool to the 60s Tuesday and Wednesday in Seattle. (FOX 13 Seattl)

Cooler and cloudier weather returns to Seattle on Tuesday. Showers are possible Tuesday afternoon and evening, but most of the damp weather will be focused west of Seattle along the Olympic Peninsula and Southwest Interior.

Wet weather may return to Seattle Tuesday evening.

Rain could make a comeback in Seattle Tuesday evening. (FOX 13 Seattle)

Drier weather takes hold on Wednesday. Thursday will be lovely with morning clouds followed by afternoon sunshine.

People in Seattle will be able to enjoy mild, dry and sunny weather on Monday.

Highs in Seattle will reach either side of 70 degrees Monday afternoon. (FOX 13 Seattle)

Friday will be primarily dry. There's a small chance for showers sometime on Saturday afternoon to Sunday, but there's low confidence about what to expect because the weather models aren't aligning. Stick with us as we watch this part of the forecast closely!

Cooler-than-normal weather is forecast this week in Seattle.

Temperatures drop to the 60s beginning Tuesday in Seattle. (FOX 13 Seattle)

For some context and perspective: Sea-Tac Airport averages 15 days with temperatures of at least 70 degrees in September. We're running behind this year. We've only had nine such days. Next week, there may be a couple afternoons in the low 70s.