Caley Thistle came into the game against East Fife in third place and were due to play the fixture at the Caledonian Stadium, but yellow weather warnings meant the game had relocated it to the astro at Millburn Academy.
Iona McArthur had the Highlanders in front early on, but second half goals from Kerys Blyth, Brodie Rigby Wilson and Liz Corke saw the Fifers move up to fifth in the table, just three points behind their hosts in fourth.
Championship top two Rossvale and Ayr United won comfortably on the road 6-0 and 4-0 against Morton and Edinburgh City respectively, while Northeast side Westdyke climbed into third place with a 2-1 home win against Renfrew Ladies. Dryburgh Athletic beat Hutchison Vale 7-0 at home to climb to sixth.
Meanwhile in SWF League One, there were emphatic 8-1 home victories for Falkirk and Edinburgh Caledonia against Dundee West and Giffnock SC respectively, while St Mirren were 6-2 winners over high-flying newcomers Queen of the South.