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lite.cnn.com - on gopher - inofficial
ARTICLE VIEW:
US heat risk forecast: See where Americans are at the most risk for
extreme heat this year
By Matt Stiles and Byron Manley, CNN
Updated:
1:39 PM EDT, Wed July 2, 2025
Source: CNN
High temperatures affect public health across wide swaths of the United
States each summer, causing spikes in emergency room visits and . As
temperatures rise, CNN is tracking extreme heat conditions and the
potential risk for Americans each day.
To help prepare Americans for the dangerous temperatures, the National
Weather Service and the US Centers for Disease Control and Prevention
has a national forecast predicting heat-related risks.
It considers the severity and unusualness of forecast heat and its
potential duration, while also factoring the likely impact on residents
in specific locations based on CDC data for past effects, such as
deaths.
This map shows the latest forecast.
The National Weather Service also produces multi-day apparent
temperature , which take into account other factors such as wind and
humidity to help explain what it “feels like” outside.
This map, updated each morning, shows that forecast across the
contiguous US for the next three days:
CNN also uses this national forecast map to derive “feels like”
temperature predictions in more than 800 US cities with a population
greater than 50,000 residents. Search it here:
A large slice of the American population lives in places that will be
subject to heat advisories, warnings and watches from National Weather
Service this year. More than 60 million people, on average, endured
such conditions during summer 2023, according to .
As the planet warms, heat waves are now more common, intense and
long-lasting, and temperatures  — not cooling down enough to offer
relief.
As those temperatures rise, heat records will also fall.
The weather service each day releases a forecast for potential
record-breaking temperatures, by location, across the country. Here are
places where high temperature records could be broken over the next
three days.
Forecasters from the National Weather Service also average temperatures
across regions of the country over the coming weeks. This map shows the
chance that areas of the continental United States will be above, below
or near normal average temperatures.
Darker shades represent areas where the average temperature has an
increased chance of being warmer or cooler than usual. Gray areas are
expected to be near normal.
Predictions often hold true, breaking daily high temperature records.
This map highlights locations across the continental United States
where temperatures exceeded calendar day records, according to the .
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