You’ll be able to feel the summer weather creeping up through the rest of the week and even through the weekend as temperatures notch up, humidity rises and the heat index begins to show up in forecasts.

Even though the weather service has a 20 percent chance of rain in the forecast for Friday, that chance keeps shrinking and may disappear. That diminishing chance of rain is from another front that should fall apart before it arrives, a pattern we’ve seen repeated this month.

This could be the weekend to give in and switch on the air conditioner. Saturday and Sunday temperatures should be pushing into the high 80s, and in the afternoons the heat index temperatures could reach 93 or 94. The dew points will inch into the 70s, about the point where we start to grumble and feel a tad uncomfortable.

Then on Sunday night another front will arrive, this one moving south of the state. It should provide a 30 percent to 50 percent chance of thunderstorms on Monday that will taper off into the evening.

That front will drop the humidity early next week to a slightly more comfortable level.

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