People hoping to beat the heat with a dip in the lake are being advised to avoid water with blue-green algae blooms.
The Water Security Agency and the Saskatchewan Ministry of Health issued a new release Friday stating swimming in or drinking this algae-contaminated water can cause red skin, sore throat, cramps or diarrhea.
The recent warm temperatures may cause the blooms to form quickly in areas of lakes and reservoirs with shallow, slow-moving or still water with sufficient nutrients.
The blooms can be pushed around in the water by wind.
Pet owners and livestock producers are also advised to keep their animals away from such water.
The province also urged caution when eating fish or shellfish caught in areas of a water body where a bloom exists. In particular, the internal organs of the fish should not be eaten.
Blooms usually last up to three weeks and are blue-green, bright blue, grey or tan in colour.
Anyone who experiences health symptoms possibly related to algae-contaminated water is asked to call Healthline 811 or contact their health care provider.