Residents as far north as Minneapolis are experiencing heat indexes of 115°F for the third day in a row.
Weather Defender basemap with Heat Index Contours enabled
The rest of the country is experiencing significant above-average heat:
Remember that extreme temperatures are the #1 weather killer, more than tornadoes, hurricanes and lightning combined. If you must be outside, look for shade and avoid unnecessary physical exertion during peak heat hours (noon-5PM). Infants and elderly are especially at risk during extreme heat, and should be monitored closely. Finally, drinking lots of water (16-32oz per hour) is a must to avoid dehydration.
Read more weather survival tips at SurvivalCache.com.