The Met Office has issued another weather warning for this week, this time for rain.
The yellow alert for all NI comes into effect at 2pm on Wednesday and lasts until 10am Thursday.
Forecasters are warning of disruption to travel and possible flooding.
"Rain is expected to set in through Wednesday morning, and become persistent for many places," the Met Office said.
"The most impactful conditions are expected to develop from Wednesday afternoon, as totals start to build up. Widely 20-30 mm of rain is expected to accumulate through the period, although some areas could see up to 40 mm.
"Conditions are expected to slowly start to improve from the west through Thursday morning."
Meanwhile there has been heavy snow in some parts of NI on Tuesday.
A yellow Met Office snow warning was in place across counties Tyrone and Fermanagh until 11am on Tuesday.
Forecasters said a band of showers was to move east, turning to snow in places.
It follows heavy snowfall last week which caused widespread disruption across Northern Ireland.
Hundreds of schools were closed and roads in many areas were made impassable, while air travel was also impacted and a number of power outages were reported.
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