Meadow Lake was without water Tuesday after a water main break forced the city to turn off the supply. The system was repaired and officials expected water to be flowing normally again by Wednesday night.
Flying Dust First Nation gets its water from Meadow Lake, so it lost its supply as well.
More than five thousand people live in Meadow Lake.
The Water Security Agency has also issued a precautionary boil water advisory for the city, which remains in effect.
On Wednesday, officials said it takes several hours for the water system to re-pressurize and citizens were asked not to run their taps until about 9 p.m.
"It will take a week for the water system to run normally," a notice said. "So we request all our residents and water users do what they can to conserve water in that time."
A precautionary boil water advisory is in place until further notice.
Many people filled up containers before water shutdown, but due to a depressurization that occurred when the water main broke, it may not be safe to drink and should be boiled first.
The advisory applies to water used for drinking, teeth-brushing and other activities where it can be ingested.
There has been a higher-than-normal number of water main breaks around a number of Saskatchewan cities this year because of the prolonged deep freeze.