  We study the low-temperature limit of warm inflation in a hilltop model. This
limit remains valid up to the end of inflation, allowing an analytic
description of the entire inflationary stage. In the weak dissipative regime,
if the kinetic density of the inflaton dominates after inflation, low scale
inflation is attained with Hubble scale as low as 1 GeV. In the strong
dissipative regime, the model satisfies the observational requirements for the
spectral index with a mild tuning of the model parameters, while also
overcoming the $\eta$-problem of inflation. However, there is some danger of
gravitino overproduction unless the particle content of the theory is large.
