Temperatures could drop as far as 30 degrees below average for several states this week as "unseasonably cool" air dips into the country .

Why It Matters

The summer months have brought countless heat-related warnings from the National Weather Service (NWS), but now most states are expecting below-average temperatures as more autumnal weather rolls in.

As heat persists across the Pacific Northwest, sparking extreme heat warnings and advisories, states like Wisconsin and Minnesota are issuing frost advisories as the NWS Weather Prediction Center shares a forecast that shows most states seeing a significant dip in their high temperatures this week.

What To Know

Northeast Minnesota was under a frost advisory for Sunday night, with a hazardous weather outlook in Wisconsin warning of pa

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