Welcome to HEAT.gov
Heat related illnesses and death are largely preventable with proper planning, education, and action. Heat.gov serves as the premier source of heat and health information for the nation to reduce the health, economic, and infrastructural impacts of extreme heat.
Heat.gov is the web portal for the National Integrated Heat Health Information System (NIHHIS)
At left, see the current number of people in the U.S. that are currently under active National Weather Service extreme heat advisories, watches, and warnings.
Below, interact with current and future heat tools to understand where dangerous heat conditions may exist in the future.
Need help with your energy bills?
The Low Income Home Energy Assistance Program (LIHEAP) helps keep families safe and healthy through initiatives that assist families with energy costs. Depending upon where you live, you could get help with energy bill assistance, weatherization support, crisis assistance, equipment repair and replacement, energy education, and disaster assistance.
New HeatRisk Tool
The NWS HeatRisk is an experimental color-numeric-based index that provides a forecast risk of heat-related impacts to occur over a 24-hour period. HeatRisk takes into consideration:
- How unusual the heat is for the time of year
- The duration of the heat including both daytime and nighttime temperatures
- If those temperatures pose an elevated risk of heat-related impacts based on data from the CDC
Featured Tools
Heat & Health Tracker
The CDC Heat & Health Tracker provides historical and recent local heat and health information so communities can better prepare for and respond to extreme heat events.
The Climate Explorer
Learn how climate conditions in the US are projected to change over the coming decades. This information—derived from global climate models—is available for counties and county-equivalents for the U.S. and its territories.
EMS HeatTracker Tool
The EMS HeatTracker maps emergency medical services (EMS) responses to heat-related illness across the country to help local decision makers and communities prioritize life-saving resources and interventions. Updated weekly, the EMS HeatTracker shows rates of heat-related illness for the prior rolling 30- and 14-day periods at both the county and jurisdiction (all 50 U.S. States, Puerto Rico, and D.C.) levels.
Heat and Health Index
The Heat and Health Index is a national tool that incorporates historical temperature, heat-related illness, and community characteristics data at the ZIP code level to identify areas most likely to experience negative health outcomes from heat and help communities prepare for heat in a changing climate.