Fraser Heath says a coming heat wave is set to hit B-C's Fraser Canyon, warning of temperatures forecasted to hit the mid-30s into the weekend.
The health authority says Environment and Climate Change Canada's heat warning covers the communities of Lytton, North Bend, Boston Bar, Yale, Othello and Sunshine Valley.
Fraser Health says the forecast is expected to moderate next week, and doesn't constitute and extreme heat emergency.
But the health authority says people at high risk for heat illness, including seniors and people with certain health conditions, should drink lots of water and avoid strenuous activities.