Last 80 of the Season in Portland Today

Portland hit 80 degrees today.  Technically 80.06 since temperatures are reported in Celsius.  That tied the record for today, 80 in October 1991.


Here are the other high temps around the area:



There have only been two days in Portland’s history that we’ve hit 80 after this date.  That was the 80 on October 16, 2002 and 81 on October 21, 2003.  Looking ahead, there is no weather pattern that would produce mid 70s or higher, so I think we can confidently say we’re done with 80 degree temperatures for this year.

Easterly gradient was stronger than I expected today; peaking out near 7 millibars.  The peak gust of 63 mph at Vista House was the strongest so far this fall.  Corbett hit 49, and Troutdale a 37 mph gust.  Expect a LOT more of that November through February!

East wind continues tonight so low temperatures only drop to 60-65 in those windy locations.  Down into the 40s and 50s for the rest of us.

Enjoy one more warm day tomorrow because we’ll see more typical clouds and showers at times starting Saturday.  That said, Models are still a bit drier than normal over the next 7 days.  The 10 day GFS total precipitation is less than 1″ over most of the Willamette Valley:


The ECMWF shows under an inch as well.  So a bit wetter, but not a real wet pattern coming up.

Chief Meteorologist Mark Nelsen

22 Responses to Last 80 of the Season in Portland Today

  1. Jason Hougak says:

    I’m sure this warm year is from the warm ocean. I’m wondering if there was more upwelling to cool the surface if it will help cool things off.

  2. I’ll probably see my last 70F (or higher) temperature for the year here today. My latest date in past years was on Oct.23, 2007.

  3. Weedeater says:

    Split flow, split woes

  4. Joshua says:

    Something sad for those of us waiting for “fall”… if Mark’s 7 day forecast pans out, every single day will still be warmer than average overall. As of today, normal is 64/46. That obviously decreases as we get to the end of the forecast period. So, even with a big pattern change, we still can’t get one day where we are even at climatology for temps. Of course, we will be drier than normal too.

    We are running 5 degrees above normal for October with a .75” rain defecit. Hard to believe how many record warm months we have had in one year. This has been a nightmare year for us that like normal PNW weather. It feels like we have had a 6 month summer. Perhaps this is the new normal and we need to head to Greenland to avoid endless 80 degree bone dry days.

  5. schmit44 says:

    10/15/2015 Oregon (All) Temperature Summary

    High:93 at DW5789 Eagle Poi(1463 ft) & EW1735 Central P(1285 ft) & MERLIN SEED ORCH(1144 ft)
    Low: 68 at ONION MOUNTAIN L(4438 ft)

    High:55 at Port Orford (US(89 ft)
    Low: 24 at Horse Ridge (US (4160 ft )

    Largest Diurnal Change: 58 degrees
    Beatty (86/28 ) (4320 ft )
    KLAMATH NWR (86/28) (4531 ft)

  6. High Desert Mat says:

    Mark, to address your response to the previous post, I will be there as well. Have the mic ready for me again as I plan on winning another Davis vantage vue if in fact that’s the grand prize again. See u in 9 days. Coming solo this time.

    • High Desert Mat says:

      And Dan, I hope you can make it so that we can meet in person. It’s all in good fun so you know. It’s a weather blog, its fascinating to me but its also still just weather in the great northwest where nothing is too serious usually. Hope to meet you there along with all the other bloggers. I’ve met a few fellow bloggers at the meeting in the past and would like to meet a few more and put faces to the blogs. Goodnight.

    • WEATHERDAN says:

      I will attend. Peace.

  7. Josh "the snowman" Gladstone says:

    To address your response from the previous post, mark. Yes, I plan on being there. My only request is that you doctor the drawing so I can get a weather station like my brother has, lol.

  8. () says:

    Jesus, we just can’t win. Drier than normal for eternity.

  9. Mark bergal says:

    Any guesses when we will see the last 70 of the year? Oct 20?

    Is there any indication of normal rain and temps, anytime soon?

    • Boring Oregon says:

      December 31st.

    • High Desert Mat says:

      For PDX I say November 7th.

    • High Desert Mat says:

      That’s why I said it. It’s the new norm. Everything’s cyclical guys. It WILL balance out sooner or later. It really is just a matter of when. Uhi’s really do skew the numbers overall over the last century.

      • Mark bergal says:

        Nov 6, low of 25 and high of 70. See, everybody gets something. Dont think its the new norm, just an odd year. I can recall freezes as early as late october, not that long ago

  10. High Desert Mat says:


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