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By Victor Kaisar

Heat Wave Coming

Kamloops area set to experience long – and somewhat unusual – spell of hot weather

Aug 21, 2025 | 4:33 PM

KAMLOOPS — Environment Canada is forecasting another spell of hot weather in the Kamloops area that is expected to begin this Friday (Aug. 22) and last for at least a week.

Meteorologist Matt Loney says while a summertime ridge of high pressure will lead to warmer than usual temperatures, it’s not expected to cross into the threshold for a heat warning.

“A warm episode like this over such a long period is a bit unusual and, I guess, we’re somewhat fortunate that it’s not happening in June or July, in which case we might be at more risk of a heat alert,” Loney said, noting people should still be careful of things like heat exposure especially during the day.

“There is no real end in sight yet that we can confidently say. We’re definitely going into a summertime stretch and if we get any indications that the temperatures are going to be elevated at night, then we’ll certainly issue a heat warning based on that.”

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Environment Canada is forecasting a high of 31 C on Friday and highs of between 35 and 36 C from Saturday to Wednesday. Overnight lows are expected to remain somewhat favourable at 13 C Friday and between 14 and 15 C until Tuesday (Aug. 26) evening.

Kamloops weather forecast as of 4:00 p.m. on Aug. 21. (Image Credit: Environment Canada)

According to the weather agency, a normal daytime high for an Aug. 21 in Kamloops is 27 C and a normal overnight low is 13 C.

“It’s going to be high and dry,” Loney said of the upcoming conditions, adding there could be the potential for some instability that may cause thunderstorms.

“We usually get instability from moisture that enters into southern B.C. from the United States. There is some moisture down there that could make its way but it’ll depend on the wind patterns under this ridge.”

While the drought rating in the North and South Thompson River basin has dropped to level 0, the BC River Forecast Centre says prolonged warm and dry conditions may cause the situation to worsen once again.

The BC Wildfire Service is also urging caution during this “heating and drying trend” even as there are just 61 active fires burning across the province.

“With hot, dry weather and no precipitation in the forecast, forest fuels can dry out quickly and become more susceptible to ignition,” the BC Wildfire Service said. “[Please] be responsible with any permitted open fire use.”

Loney said it’s also possible that some new daily temperature records could be set in the Kamloops area during this upcoming heat event.

“It’s been a summer of a little bit of heat and then the potential for showers and moisture,” he said. “I think this is the first reliable stretch of weather that we’ve had with a week plus stretch of dry and mostly stable air.”

“Enjoy it to the extent you can. If its gets too hot, seek out shelter and shade.”