OTTAWA – It’s another scorcher on deck for Ottawa. Another hot, humid day is forecast, with daytime highs in the low 30’s, with a humidex value around 39C.

The National Capital Region remains under heat warnings from Ottawa Public Health and Environment Canada.

Public health says children, seniors and people with certain medical conditions, including heart conditions and breathing problems are especially vulnerable in these high temperatures.

Officials say you should drink lots of water, be careful how much time you spend outdoors in the sun and make sure not to leave children and pets in vehicles.

If you don’t have air conditioning at home, you’re advised to head to an air conditioned building like a library, grocery store or shopping mall.

Click here for updates from Environment Canada.

Ottawa’s forecast:

Tuesday: Sun and cloud with scattered showers or thunderstorms for the afternoon.

Guaranteed high 31, humidex near 39.

Tuesday night: Partly cloudy with scattered showers or thunderstorms.

Low near 20

Wednesday: Sun and cloud with afternoon showers or thunderstorms.

High near 30, humidex near 37.