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Weekend Weather: A Fantastic Forecast To Close Out Summer

There’s a term in meteorology called diurnal range: the difference between the overnight low and the afternoon high. Typically, we might see a 20-degree range between what you experience at sunrise and what we see in the middle of the afternoon. But with the very dry air over us, we will see enormous ranges.

After the official low temperature is recorded in places like Norwood this morning, there is likely to be a 40-degree increase this afternoon. Yesterday, across portions of Maine, there were also similar increases. These are approaching record changes. It’s not as unusual to see these huge differences in the middle of winter — when it can be 0 degrees in the morning and 40 in the afternoon — but in September, it's a lot harder to get such a spike.

Clear skies will continue right through early next week, with the exception of just a brief chance of a sprinkle Monday night or Tuesday. The warmest days are going to be Saturday through Monday, when temperatures will get into the 80s.

High surf advisories are posted along much of the New England coastline. (Dave Epstein/NOAA Data)
High surf advisories are posted along much of the New England coastline. (Dave Epstein/NOAA Data)

If you are planning on heading to the beach today, be aware there is a high surf advisory all along the New England coastline. This likely will be taken down over parts of the region tomorrow, but still observe caution if you are headed for a late-season dip in the ocean.

You can follow my updates here and on Twitter @growingwisdom.


Friday: Lots of sun. Highs 75-80.

Friday night: Clear and comfortable.  Lows 48-56.

Saturday: Sunshine and warm. Highs approaching 82; 70s Cape/Islands.

Sunday: More sunshine and dry. Highs within a few degrees of 85; 70s Cape/Islands.

Monday: Sunny and warm. Highs in the low to mid-80s.

Tuesday: More dry weather. Highs in the 70s.

David Epstein Twitter Meteorologist
David Epstein is WBUR's meteorologist.

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