  In this paper we consider the non local non autonomous evolution problem \[
\begin{cases} \partial_t u =- u + g \left(\beta(t)(Ku) \right)\ \ \mbox{in}\ \
\Omega,\\ u = 0\ \ \mbox{in}\ \ \mathbb{R}^N\backslash\Omega, \end{cases} \]
where $\Omega$ is a smooth bounded domain in $\mathbb{R}^N$, $\beta$ denotes
the functional parameter given by a continuous bounded function on
$\mathbb{R}$, and $K$ is an integral operator with symmetric kernel. We prove
existence and some regularity properties of the pullback attractor.
