National Weather Service Weather Alert: Extreme Heat Warning in Effect Until March 20, 8 PM Today

Dundee Neighborhood Staff

March 17, 2026

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Breaking news: The National Weather Service has issued an Extreme Heat Warning for our region, in effect from now until 8 PM on March 20, 2026. Residents are urged to take immediate precautions as dangerously high temperatures and heat indices are expected, posing serious health risks. Stay alert and prioritize safety as this heat wave intensifies.

Current Conditions in National Weather Service

As of this afternoon, the temperature in the National Weather Service area has reached a scorching 92°F under clear skies. Humidity levels are rising, exacerbating the heat, which is expected to feel much hotter due to the heat index. Tonight, temperatures will drop to a cooler low of 56°F, but conditions will remain clear.

Detailed Forecast & Timeline

The upcoming days will see relentless heat in the National Weather Service area. Here’s your breakdown:

  • Wednesday: High of 96°F, clear skies.
  • Wednesday Night: Low of 57°F, clear.
  • Thursday: High of 96°F, hot and sunny.
  • Thursday Night: Low of 59°F, clear.
  • Friday: High of 98°F, continuing the hot trend.
  • Friday Night: Low of 57°F, clear.

Warnings & Active Alerts

The National Weather Service has confirmed an Extreme Heat Warning for our region. Residents are advised to avoid outdoor activities during peak hours, drink plenty of water, and never leave children or pets in parked vehicles. Vulnerable populations, including the elderly and those with underlying health conditions, are particularly at risk.

Hour-by-Hour Conditions

Time Temp Conditions Wind
3 PM 92°F Sunny 5 mph
4 PM 93°F Sunny 5 mph
5 PM 94°F Sunny 5 mph
6 PM 92°F Sunny 5 mph
7 PM 90°F Clear 5 mph
8 PM 89°F Clear 5 mph

5-Day Weather Outlook

Expect continued high temperatures throughout the week. The following is your 5-day weather outlook:

  • Saturday: High of 95°F, mostly sunny.
  • Sunday: High of 97°F, clear skies.
  • Monday: High of 94°F, sunny.
  • Tuesday: High of 91°F, partly cloudy.

Safety Tips & Emergency Preparation

As the extreme heat settles in, the National Weather Service recommends the following safety measures:

  • Stay hydrated: Drink plenty of water, even if you don’t feel thirsty.
  • Avoid strenuous outdoor activities during the hottest parts of the day.
  • Check on vulnerable individuals, including the elderly and those with chronic illnesses.
  • Keep your home cool by closing blinds and using fans or air conditioning.
  • If you must be outside, wear light clothing and apply sunscreen.

Frequently Asked Questions

What is an Extreme Heat Warning?

An Extreme Heat Warning is issued when high temperatures and humidity create conditions that can lead to heat-related illnesses, especially for vulnerable populations.

How should I prepare for extreme heat?

Stay hydrated, reduce physical activity, and ensure you have a cool place to stay, ideally air-conditioned or shaded.

What are the symptoms of heat exhaustion?

Symptoms include heavy sweating, weakness, dizziness, nausea, and headache. Seek immediate medical attention if you or someone else exhibits these symptoms.

Is it safe to exercise during extreme heat?

It is advised to avoid heavy exercise outdoors during extreme heat conditions. If you must exercise, do so in the early morning or evening when temperatures are cooler.

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