Localised flooding and lightning damage are some of the risks outlined by Met Éireann.
A status yellow thunderstorm warning comes into place later for Limerick.
The warning from Met Éireann also applies to Counties Kerry and Clare.
It comes into effect at 3pm and will expire at 9pm.
Met Éireann is warning of the potential for localised flooding, lightning damage and difficult travelling conditions.
Meanwhile, it's expected to be dry and sunny this morning.
It's set to be very warm today, with temperatures reaching between 22 and 27 degrees.
Forecasters predict that the country could experience its first heatwave in three years this week.
Temperatures must exceed 25 degrees for five consecutive days for a heatwave to be officially declared.
