The striker is a free agent after leaving Premier League side Swansea City, and will aim to impress Town boss Mick McCarthy at the Amlin Stadium.
Lita made a big impact during his time on loan at Norwich back in 2008, scoring 7 goals in 16 appearances.
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David Cameron has arrived in Peterborough to celebrate his party's victory in the local elections.
Thousands of Northampton Town fans will line the streets this weekend to celebrate their team's promotion to League One.
Temperatures will reach 25ºC this weekend with a chance of 26ºC on Saturday. However, the heat could trigger a few thunderstorms later.