A heat wave is is set to crash into the city this week.

Temperatures reaching 30 C are expected to hit Thunder Bay starting Wednesday, according to Environment Canada.

Today could see showers and there is also risk of a thunderstorm but starting Wednesday and lasting through the weekend are sunny skies and hot weather.

The average high for this time of year is about 22C.

Daytime highs this week could reach 30C with overnight temperatures ranging from 12C to 15C.

As of Monday evening, there were no weather alerts in effect for Thunder Bay.

Heat and thunderstorms can affect wildfire activity. On Sunday, the Ministry of Natural Resources and Forestry said recent rainfall has been scattered and that only a few locations in the Northwest have seen a reduction in the forest fire hazard.

As of Monday, the hazard for most of Northwestern Ontario was low or moderate. Seven of the region’s 10 current fires are in, or near, a high-hazard area near the Manitoba border that includes Red Lake, Pikangikum and Sandy Lake, according to Ontario’s Ministry of Natural Resources and Forestry.

No new forest fires had been confirmed by late Monday afternoon.

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