A cold front will pass through the Twin Tiers tonight with showers and thunderstorms likely.  Showers will linger Thursday with limited sunshine also expected at times.  Northwesterly winds will increase with gusts over 25 mph possible.  Daytime temperatures will drop through the 60s and into the 50s with lower 40s expected at night.  Partly sunny skies are likely on Friday with temperatures not expected to rise out of the 50s.