I take it when you say "manned tower and is currently under IFR conditions" you mean that the airfield is in IMC.
No such thing really as "IFR conditions". IFR is just different flight rules to VFR and different licence privileges. After all most IFR trips I've done have been in VMC. To fly the procedural approach it will done under IFR whatever the weather conditions.
IFR conditions is an American term.