There should be no need for the rain-jacket if you're cheering from the Hill this evening, but be sure to wrap up warm.
Temperatures at Croke Park will average at 15 degrees this evening but football fans can expect fresh breezes.
The day will begin cloudy, but skies should clear later this afternoon, Met Eireann report.
And Dublin and Mayo should play the much-anticipated All-Ireland semi-final replay in dry conditions.
If you're hitting the capital to support the Cats or the Tribesmen tomorrow, you can expect similar weather conditions.
It will be cool and largely dry tonight, with temperatures dropping to three or four degrees.
Weather forecasters are predicting a dry, bright and sunny day tomorrow with some drizzly conditions near the northern coast.
Those hitting Croke Park for the 3.30pm throw-in can expect light winds.
Highest temperatures will hit 14-17 degrees, with warmer conditions in the south.