Countdown to 70 Degrees Fahrenheit - or a Return of Big Chill

You’ll need your sunglasses for part of the weekend, but the rest of the forecast might make you do this with your face. (Photo by Garry Knight/Flickr)

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Come on, spring, you can do it. The vernal equinox was almost a month ago. Where have you been?

There’s good news and bad news in the seven-day forecast for metro Detroit. The good news first:

Friday will start out cloudy, then become partly sunny with a high near 70 and light northwest winds, 5-8 mph, according to the National Weather Service.Expect more of the same Saturday, with a high near 69 under sunny skies.

Enjoy it while you can. It’s going to turn chilly again Sunday and go downhill from there. Here’s the forecast.

Thursday night: 30 percent chance of scattered showers before 11 p.m., cloudy with a low around 47, south wind 3-7 mph.

Friday and Friday night: Mostly cloudy, then gradually becoming sunny with a high near 70 and west-northwest wind; mostly clear overnight with a low around 49 and south-southeast wind becoming northwest after midnight.

Saturday and Saturday night: Sunny with a high near 69, light and variable wind becoming north-northeast 6-11 mph; partly cloudy overnight with a low around 44.

Sunday and Sunday night: 70 percent chance of daytime showers, cloudy with a high near 56; clouds continuing overnight with a low around 48.

Monday and Monday night: Cloudy with showers likely and a high near 62; mostly cloudy overnight with a low around 42.

Tuesday and Tuesday night: Partly sunny with a high near 54; mostly cloudy overnight with a low around 38.

Wednesday: Partly sunny, with a high near 54.