• About Us
    • Submissions
    • Advertise
    • Support
    • Subscribe
    • ColoradoBoulevard.net
    • Front Page
    • *News & Headlines
      • News
      • Editorials
      • Interviews
      • Tips
    • Events
      • Highlighted Events
      • Submit an Event
      • Event Categories
      • Event Locations
    • Environmental
      • Gardening
      • Organic
    • Arts
      • Reviews
      • Cartoons
      • Poetry
      • NeedleArts
    • Science, Tech, Biz
    • Food, Health, Education
      • Food
      • Health
      • Education
  • Five Candidates Share Views at San Gabriel City Council ForumFive Candidates Share Views at San Gabriel City Council Forum
  • Fall Art Fair Lifts Up Altadena Artists and Local StoriesFall Art Fair Lifts Up Altadena Artists and Local Stories
  • Vroman's Author Leslie Adame Makes Undocumented, Unseen Youth VisibleVroman's Author Leslie Adame Makes Undocumented, Unseen Youth Visible
  • Altadena to Celebrate $15 Million CARE Fund Investment for Eaton Fire RecoveryAltadena to Celebrate $15 Million CARE Fund Investment for Eaton Fire Recovery
  • League of Women Voters To Host Pasadena Voter Education Forum Oct. 19League of Women Voters To Host Pasadena Voter Education Forum Oct. 19
  • Pasadena Extends Red Flag Parking Restrictions Through SaturdayPasadena Extends Red Flag Parking Restrictions Through Saturday
  • Fright Night at the Pasadena Museum of HistoryFright Night at the Pasadena Museum of History
    • Environmental Impact

      Greater Pasadena Area and San Gabriel Valley Set for Major Warmup After Early-Week Chill

      • News Desk
        • May 4, 2026
        • 0 comments
      mountains and clouds

      The San Gabriel Mountains as seen from Monrovia (Photo – W.K.)

      Cool, moist weather will dominate the start of the week across the Greater Pasadena Area and San Gabriel Valley, but a dramatic shift toward warm, dry conditions is on the horizon.

      By News Desk

      Monday night brings a 30% chance of light rain, with lows near 51°F and occasional gusts up to 15 mph. Rainfall totals are expected to stay under a tenth of an inch.

      A slight 20% chance of showers lingers into Tuesday, though skies will turn partly sunny as temperatures reach 65°F. By Tuesday night, conditions calm under partly cloudy skies with lows again around 51°F.

      Beginning Wednesday, the region enters a steady warming trend. Sunshine returns with a high near 76°F, followed by mostly clear skies overnight.

      From there, temperatures climb rapidly:

      • Thursday: Sunny, high near 83°F
      • Friday: Sunny, high near 85°F
      • Saturday: Sunny, high near 87°F
      • Sunday: Sunny, high near 90°F

      Overnight lows will gradually rise from the mid-50s to the low 60s as the warmup continues.

      After a breezy, damp start, residents can expect a return to bright, dry, and increasingly hot conditions heading into the weekend.

      Tagged: Greater Pasadena Area and San Gabriel Valley Set for Major Warmup After Early-Week ChillAltadenaMonroviaPasadena

      Support Independent Local Journalism

      We hope you enjoyed this article. We live in and care about this community.

      For more than a decade, Colorado Boulevard Newspaper has investigated local issues, asked difficult questions, and worked to hold power accountable—without shareholders, corporate agendas, or outside influence.

      Your support helps fund the time, research, and reporting needed to uncover stories that matter.

      A $5 gift or subscription helps keep local journalism strong.

      Please explore the many ways you could support us by clicking the blue button below.

      Support

      Author

        • Author
        • Recent Posts
        • News Desk

          Our News Desk department consists of a collective of news gatherers in order to keep the community informed and safe.

          Award-winning Colorado Boulevard Newspaper is your go-to source for informative news, engaging events, and vibrant community life in the greater Pasadena area. We’re proud to be recognized for excellence in journalism and remain committed to informing, educating, and collaborating to create a better world, both locally and globally.

        • Latest posts by News Desk

          • October 17, 2026
            Pasadena Extends Red Flag Parking Restrictions Through Saturday
          • October 16, 2026
            Altadena to Celebrate $15 Million CARE Fund Investment for Eaton Fire Recovery
          • October 15, 2026
            Sierra Madre Reports First West Nile Virus-Positive Mosquito Sample of 2026

          See all articles

      Post navigation

      A Wave of New Restaurants and Retail Highlights Pasadena in 2026
      Community Invited to Free Pasadena Dinner and Talk on May 12

      Recommended Articles

      • a person holding a sign

        San Gabriel Valley Residents To Rally Against Data…

      • people on the street untangling Christmas lights

        Extreme Heat Warning Remains in Effect for Pasadena and…

      • road markings leading to a building

        Extended Heat Wave to Bring Triple-Digit Temperatures to…

      Leave a Reply Cancel reply

      Your email address will not be published. Required fields are marked *

    • October. 2026 Print

      CB Oct 2026

      Print Edition

      Covering: Pasadena • Altadena • Sierra Madre • South Pasadena • San Marino • San Gabriel • Alhambra • Monterey Park • Arcadia • Monrovia • La Crescenta-Montrose • Highland Park.

      October 2026
      SMTWTFS
          123
      45678910
      11121314151617
      18192021222324
      25262728293031
      « Sep   Nov »
      • ColoradoBoulevard.net
      • Home
      • About Us
      • Submissions
      • Advertise
      • Subscribe
      • Privacy and Cookies Policy
      • Terms of Use
      • Ethics & Correction Policy

      © ColoradoBoulevard.net - By Coloradoblvd.net and WMF

    • Colorado Boulevard Newspaper

      Categories

      • *News & Headlines
        • Editorials
        • Interviews
        • Tips
      • Arts & Entertainment
        • Cartoons
        • NeedleArts
        • Poetry
        • Reviews
      • Environmental Impact
        • Deals
        • Gardening
        • Organic
      • Food, Health, Education
        • Education
        • Food
        • Health
      • Highlighted Events
      • In Case You Missed It!
      • Science, Tech, Business
      • Who's Who
      • Front Page
      • About Us
      • Submissions
      • Advertise
      • Community Events
        • Highlighted Events
        • Event Categories
        • Event Locations
        • Submit Event

      Join Us

      • Subscribe
      • Support
      • Newsflash

          • Loading...
          • You're all caught up!
          • Oops something went wrong!

          See all newsflashes

          Back to articles