Connacht's Magners League clash with Newport Gwent Dragons on Friday has been postponed due to the big freeze.
Connacht made the decision due to a combination of the Dragons having difficulty travelling from Wales and doubts over the Sportsground surface.
Club chief Gerry Kelly said: "All options were considered, including moving the game to Saturday afternoon and looking at other venues."
A date for the rescheduled game is yet to be confirmed.
"The Dragons were due to fly from Luton to Galway on Thursday," added Connacht chief executive Kelly.
"But they told us they would have difficulty getting to the airport, especially following the overnight deterioration of the weather in the UK. And even then there would be no guarantee that flights would be operating.
"Taking all factors into account and following discussions with the Dragons, which we have been having daily since the weekend, it was felt the best decision was to call off the game at this stage.
"We discussed the matter with the Magners League and the difficulty our supporters might have trying to get to the venue was also a factor.
The Sportsground pitch has been covered since last Thursday and since then heaters and another cover have been applied.
"We want to apologise to supporters, especially as the Leinster game was also postponed," added Kelly.
"But the safety of everyone has to be the number one priority."