Heat Risk

NWS HeatRisk, an experimental 0 to 4 scale of how dangerous the expected heat is for health, for each of the next 7 days.

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Heat alerts

0 extreme heat warnings, watches and heat advisories are in effect.

Today

Contiguous U.S. · NWS HeatRisk

NWS HeatRisk map for Mon 10/26

Tue 10/27

Contiguous U.S. · NWS HeatRisk

NWS HeatRisk map for Tue 10/27

Wed 10/28

Contiguous U.S. · NWS HeatRisk

NWS HeatRisk map for Wed 10/28

Thu 10/29

Contiguous U.S. · NWS HeatRisk

NWS HeatRisk map for Thu 10/29

Fri 10/30

Contiguous U.S. · NWS HeatRisk

NWS HeatRisk map for Fri 10/30

Sat 10/31

Contiguous U.S. · NWS HeatRisk

NWS HeatRisk map for Sat 10/31

Sun 11/1

Contiguous U.S. · NWS HeatRisk

NWS HeatRisk map for Sun 11/1

HeatRisk levels

0 Little to noneLittle to no risk from expected heat.
1 MinorAffects mainly people who are extremely sensitive to heat, especially outdoors without cooling or enough water.
2 ModerateAffects most people sensitive to heat, especially without effective cooling or enough water. Some health systems and heat-sensitive industries may be affected.
3 MajorAffects anyone without effective cooling or enough water. Impacts likely in some health systems, heat-sensitive industries and infrastructure.
4 ExtremeRare or long-lasting extreme heat with little overnight relief. Affects anyone without effective cooling or enough water.

Stay safe

Drink water, stay in air conditioning, check on older neighbors, and never leave children or pets in a parked car. UV index

Data sources

NWS HeatRisk (experimental)NOAA National Weather Service
National Weather Service APINOAA

See something wrong? Request a correction

About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

HeatRisk is experimental and supplements official NWS heat warnings. It covers the contiguous U.S. only. Your city page shows the HeatRisk level for that location.

DatenUS is a private website and is not affiliated with or endorsed by any government agency. We republish public data from the sources listed on this page. Data can be incomplete, delayed or wrong. Always check the original source before you make a decision.

Our servers read this data automatically from government sources. Errors can come from the source itself or from the way we read, process or display it, and we do not guarantee that it is accurate, complete or current. Verify anything important with the official source.

Report an error Read the full disclaimer