St. Johnsbury heat warnings: Town risk days and NWS advisory through 8 p.m.
St. Johnsbury is under a National Weather Service Heat Advisory today, July 14, from 11 a.m. to 8 p.m. EDT for heat index values between 95 and 105 degrees. Heat index accounts for how hot it feels when humidity is added to air temperature—so even routine outdoor tasks can push some people toward heat illness.
The Town of St. Johnsbury also issued high-heat warnings earlier this week. On July 1, the Town posted an “ELEVATED RISK” alert, and on July 2 it upgraded to “SIGNIFICANT RISK.” Both Town posts included practical safety steps and a local cooling option: a misting fan set up in front of the St. Johnsbury Fire Station.
What the Town warned on July 1 and July 2
In its July 1, 2026 “Elevated Heat Index Risk” alert, the Town urged residents to drink plenty of water, wear lightweight, light-colored clothing, and cool off in an air-conditioned space. It also advised residents to avoid strenuous outdoor activities, especially during peak afternoon hours. The Town also pointed to the misting fan outside the St. Johnsbury Fire Station as a way to cool down.
In its July 2, 2026 “Significant Heat Index Risk” alert, the Town said heat cramps and heat exhaustion are likely, and that heat stroke is possible with prolonged exposure or physical activity. It recommended taking extra care to cool yourself frequently and hydrate adequately, again noting the misting fan in front of the St. Johnsbury Fire Station.
Today’s stay-alert window (NWS Heat Advisory)
For residents in/around St. Johnsbury, the key window is 11 a.m. to 8 p.m. EDT. The NWS is specifically calling out the heat index range of 95 to 105 degrees, which means you should plan for cool breaks and hydration during the hottest hours—not after symptoms show up.
How to lower your risk during the advisory
- Hydrate early and often. Drink water regularly before you feel thirsty.
- Use cooling breaks. Step out of the heat for short intervals in an air-conditioned space when possible.
- Dress for heat. Wear lightweight, light-colored clothing.
- Reduce strenuous activity during peak hours. If you can reschedule outdoor work, consider doing it before or after the hottest part of the day.
- Use local cooling when you need it. The Town has noted a misting fan in front of the St. Johnsbury Fire Station.
These steps matter especially for outdoor workers, parents and caregivers, and anyone watching someone who may not recognize symptoms early (for example, older adults and young children).
Heat illness warning signs—and what to do
The CDC lays out clear differences between heat stroke (an emergency) and other heat-related illness. If you see severe symptoms, act immediately.
If it could be heat stroke: call 911 right away
CDC warning signs for heat stroke include:
- High body temperature (103°F or higher)
- Hot, red, dry, or damp skin
- Fast, strong pulse
- Confusion and/or losing consciousness (passing out)
CDC says to:
- Call 911 right away (heat stroke is a medical emergency).
- Move the person to a cooler place.
- Help lower the person’s temperature with cool cloths or a cool bath.
- Do not give the person anything to drink.
For heat exhaustion or heat cramps: cool down and watch closely
CDC lists heat exhaustion signs such as heavy sweating, cold, pale, and clammy skin, fast/weak pulse, nausea or vomiting, dizziness, headache, and fainting.
For heat cramps, CDC notes heavy sweating during intense exercise along with muscle pain or spasms.
CDC response steps include moving to a cool place, loosening clothes, cooling with cool, wet cloths or a cool bath, and sipping water. CDC also says to get medical help right away if symptoms worsen or last longer than 1 hour. It also advises stopping physical activity and moving to a cool place, and drinking water or a sports drink. For cramps, get medical help right away if cramps last longer than 1 hour, especially for people on a low-sodium diet or with heart problems.
Quick checklist for the rest of today (July 14)
- Plan cooling breaks between 11 a.m. and 8 p.m.
- Hydrate before and during outdoor time.
- Limit heavy exertion when the heat index is highest.
- Know the emergency signs for heat stroke and call 911 immediately if they appear.
- Use the Town’s cooling note (the misting fan outside the St. Johnsbury Fire Station) when you need it.
Sources
- Town of St. Johnsbury — “Elevated Heat Index Risk” (July 1, 2026)
- National Weather Service — St. Johnsbury-area Heat Advisory (points/facts for July 14, 11 a.m.–8 p.m. EDT)
- CDC — Heat-Related Illnesses (what to look for + what to do)
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