Heat Safety Tips

Extreme Heat Warning Picture

Massachusetts Emergency Management Agency


DATE: July 18, 2019
TIME: 12:00 noon
SUBJECT: Excessive Heat and Humidity Friday through Sunday


  • The National Weather Service (NWS) is forecasting excessive heat Friday through Sunday. Hot temperatures combined with high humidity levels are expected to create dangerous heat conditions, with the most oppressive conditions expected Saturday.
  • High temperatures Friday-Sunday are forecast to be in the 90s to lower 100s, and dew points in the low to mid 70s. Heat index values are expected to reach the mid to upper 90s Friday, 100 to 110 Saturday, and 97 to 105 Sunday, with the highest values occurring on Saturday in eastern Massachusetts and parts of the Connecticut River valley. Graphics provided below.
  • The National Weather Service (NWS) has issued an Excessive Heat Watch for most of Massachusetts for Saturday from 11:00 a.m. through 9:00 p.m. Graphics provided below. NWS may issue additional heat-related watches, warnings, or advisories for Friday and/or Sunday.

1. Heat Stroke versus Heat Exhaustion Signs

2. Heat Safety Tips