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I talked to him in the weekend. is the most popular phrase on the web.

I talked to him at the weekend. 11 results on the web	I talked to him in the weekend. 1112,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
And I never stay in Lisbon at the weekend. I talked to the couple you detained after the weekend in Amsterdam. I'll still see the kids at the weekend. I'm going to Athens at the weekend. I talked to Lainey about this weekend. Great result for the rugby at the weekend. I have to serve tables at the weekend. I talked to Trixie, and she vetoed the draft for wedding weekend.	You said the last time you talked to Ariel was on the weekend. I talked to the couple you detained after the weekend in Amsterdam. I talked to Lainey about this weekend. I talked to Trixie, and she vetoed the draft for wedding weekend. Listen, Mom talked to Uncle Ray and Aunt Martha, and they're going to put us up in Hawthorne over the weekend. You can borrow the car in the weekends. So, I talked to Louis about his weekend here. We'd still let you see Candy in the weekends.

I talked to him at the weekend.

11 results on the web

I talked to him in the weekend.

1112,000,000 results on the web

More popular!

You said the last time you talked to Ariel was on the weekend.
I talked to the couple you detained after the weekend in Amsterdam.
I talked to Lainey about this weekend.
I talked to Trixie, and she vetoed the draft for wedding weekend.
Listen, Mom talked to Uncle Ray and Aunt Martha, and they're going to put us up in Hawthorne over the weekend.
You can borrow the car in the weekends.
So, I talked to Louis about his weekend here.
We'd still let you see Candy in the weekends.