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Heat Wave Hits Massachusetts, Temperatures Feel Like 110 Degrees
Massachusetts, USAMonday, June 29, 2026
# **Massachusetts to Roast in Extreme Heat Wave: Heat Dome Brings Dangerous Conditions**
**Extreme Heat Watch in Effect**
The National Weather Service has issued a dire warning—Massachusetts is about to endure a brutal heat wave, with heat indexes soaring to **110°F** in the coming days. Nearly the entire state, except for **Berkshire County** and the **Cape & Islands**, is under an **extreme heat watch** from Wednesday morning through Friday evening.
A relentless **heat dome** will blanket the region, trapping scorching air and pushing daytime highs into the **upper 90s**. But the real danger lies in the humidity—feeling between **105°F and 110°F**, making it feel like stepping into a **sauna**.
## **Relentless Heat: No Escape Day or Night**
Nighttime temperatures will remain oppressively high, offering **no relief** after sunset. **Thursday and Friday** will be even worse, with highs hitting **98°F to 103°F** and heat indexes climbing above **105°F**.
The Connecticut and Merrimack River valleys face the highest risk, with temperatures expected to top 100°F.
Weekend Relief? Storms May Bring Break
By Friday night, the heat dome should finally weaken, but not before bringing increased storm chances to break the oppressive conditions.
Stay Safe: Officials Issue Critical Warnings
Authorities are urging residents to take precautions:
- Hydrate constantly—water is your best defense.
- Stay indoors in air-conditioned spaces whenever possible.
- Avoid direct sunlight, especially during peak afternoon hours.
- Check on vulnerable neighbors, family, and friends.
- Never leave children or pets in vehicles—interiors can become deadly in minutes, even with windows cracked.
The heat is unforgiving. Stay cool, stay alert, and look out for one another.
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