Flood warnings were in place in areas of west central Scotland, Scottish Borders, Central, Tayside and Dumfries and Galloway,
There were also flood alerts in other areas including Argyll and Bute, Ayrshire and Arran, Edinburgh and Lothians, Fife and Skye and Lochaber.
Travel has been disrupted in some of the areas affected.
The A737 at Beith in North Ayrshire, was closed in both directions after a blocked drain caused flooding.
The A8 westbound at East Hamilton Street, Greenock, was affected by flooding, as was the M74 at the Raith Interchange.
Road users were also advised to use caution on the A83 between Lochgilphead and Inveraray.
Fire crews responded to incidents of localised flooding on parts of Scotland's west coast.
Sandbags were brought in to protect a handful of properties in the village of Lamlash on Arran. Streets in Tarbet and on Colonsay and Islay were affected too.
The Met Office issued an amber "be prepared" warning for rain in the Stirling area, Dumfries and Galloway and parts of Strathclyde.
It warned that flooding was possible either from standing water or from rivers which have remained high after the large volumes of rainfall over the last few days.
The rain is expected to finally clear away in the early hours of Monday morning.
The Scottish Environment Protection Agency is providing updates on areas where flooding may occur.
Live traffic updates are also available on the Traffic Scotland website.
Further heavy rain is expected in parts of Scotland on Sunday after a number of areas suffered localised flooding.