Boulder, CO Weather Alert Now: N/A Today — Red Flag Warning with Breezy Conditions All Week

Dundee Neighborhood Staff

March 18, 2026

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Boulder, CO Weather Alert Now: N/A Today — Red Flag Warning with Breezy Conditions All Week

Current Weather Overview

Residents of Boulder, CO, are experiencing fair conditions today, though temperatures are not currently available. The day is marked by a Red Flag Warning indicating heightened fire risk due to dry and windy conditions. This alert is in effect around Boulder Municipal Airport (KBDU) and the surrounding areas, urging caution for outdoor activities.

Today’s Forecast

Expect sunny skies accompanied by breezy conditions throughout the afternoon. The high temperature is projected to reach 79°F. As the evening approaches, the wind will persist, leading to mostly clear skies with a slight drop in temperature, reaching a low of 52°F. Residents should remain vigilant due to the continuing Red Flag Warning, which remains in effect until 7:00 PM.

Upcoming Weather Changes

As the week progresses, Boulder will see a pattern of sunny days and mostly clear nights, with temperatures gradually rising. The area will continue experiencing breezy conditions, contributing to the ongoing Red Flag Warning. The community is advised to stay alert and follow any guidelines issued by local authorities.

Weekly Outlook

The upcoming week promises ample sunshine and mild conditions, making it ideal for outdoor activities, albeit with caution due to fire risks. Here’s a detailed 7-day weather summary for Boulder:

Period Forecast Temperature
NOW until 7:00pm Wed Red Flag Warning N/A
This Afternoon Sunny and Breezy High: 79 °F
Tonight Mostly Clear and Breezy then Mostly Clear Low: 52 °F
Thursday Sunny High: 83 °F
Thursday Night Mostly Clear Low: 52 °F
Friday Sunny High: 85 °F
Friday Night Mostly Clear Low: 52 °F

Weather Impact & Alerts

The Red Flag Warning indicates a critical fire weather condition due to the combination of warm temperatures, low humidity, and strong winds. Residents are urged to avoid activities that could ignite fires, such as grilling or using machinery that might cause sparks. Stay informed through local news outlets and be prepared to act quickly if a fire threat arises.

  • Red Flag Warning in effect until 7:00 PM Wednesday.
  • Breezy conditions expected throughout the week.
  • Gradually increasing temperatures with sunny skies.
  • Heightened fire risk; exercise caution with outdoor activities.

FAQ

What is a Red Flag Warning?
A Red Flag Warning signifies that critical fire weather conditions are either occurring now or will shortly. It is a call for heightened awareness and caution.
How should I prepare during a Red Flag Warning?
Avoid using outdoor grills, dispose of cigarette butts properly, and refrain from using heavy machinery that could spark a fire. Stay informed through local updates.
What weather conditions contribute to a Red Flag Warning?
These warnings are generally issued when there are low humidity levels, warm temperatures, and strong winds, all of which can contribute to the rapid spread of wildfires.

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