![Up to 20mm of rain is predicted for Friday in Wollongong. Picture: SYLVIA LIBER Up to 20mm of rain is predicted for Friday in Wollongong. Picture: SYLVIA LIBER](/images/transform/v1/crop/frm/35ns5Wme2fedmBqQ6qZE6iD/4eaed990-10a6-40aa-a262-c818ca4dac06.jpg/r0_311_5184_3237_w1200_h678_fmax.jpg)
The Illawarra may get its wettest day in more than four months later this week, bringing brief respite to the city's parched parks and gardens.
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The Bureau of Meteorology is forecasting the Illawarra and Sydney’s record dry spell to run until Friday when it predicts 8-20 millimetres will fall.
Before that, two mild and partly cloudy days with pleasant top temperatures in the mid-20s should extend the number of consecutive days with less than 2 millimetres of rain to 76 days.
"The rain is part of a low-pressure trough," Kim Westcott, a meteorologist with Weatherzone, said.
Behind it, a cold front will keep conditions relatively cool for a couple of days.
Friday is forecast to hit a top of 21 degrees, and Saturday a top of 19 degrees.
The rain itself is likely to fall mostly during the morning on Friday before conditions start to dry up, Ms Westcott said.
Temperatures should start to climb again from about Tuesday next week, Ms Westcott said.
The return of the warmth is likely to dry out rapidly the moisture from Friday's falls.
Wollongong, Sydney and NSW recorded their driest Septembers on record. No rain fell at Albion Park during September, with just 0.4mm recorded at Bellambi.
Weatherzone is owned by Fairfax Media, publisher of this website.