99 Final High Temp Today

Sophie High Was it the warmest day of this summer?  One would hope so, but historically it’s unlikely we’ve had our warmest temperature so far.  Take a look at just the past 10 years.


Last year the 97 on June 30th was the hottest of the summer.  The average over the past 10 years is July 28th, and you can see in about half the years the hottest of summer is in late July or August.

Cool marine air is surging inland nicely at 11pm with temperatures in most of the Willamette Valley down to around 70.  That cool air will continue to pour in through tomorrow.  High temps should be 15-20 degrees cooler as a result.  Part of the cooling will come from extensive mid-level clouds the first part of tomorrow due to an upper-level disturbance moving by.

Ahead of that disturbance this evening there is quite a bit of thunderstorm action moving north along the east slopes of the southern Oregon Cascades…actually heading into the Central Cascades at this hour.  So I wouldn’t be surprised to see flashing to our southeast within a couple of hours.

Chief Meteorologist Mark Nelsen

16 Responses to 99 Final High Temp Today

  1. paulbeugene says:

    It is a ways away…July 12 (9-10 days away)…but the models have it looking like a decent convective outbreak for Oregon, especially SW Oregon and the Cascades and points eastward, as is usually the case. Some convection over Willamette Valley also possible. Both the GFS and Euro runs are showing this, with 500mb height falls setting up offshore of northern California, great basin 500mb ridge inland.

  2. schmit44 says:

    7/2/2014 Oregon (All) Temperature Summary

    High:105 at DW9659 Richland(2379 ft)
    Low: 73 at HEPP(311 ft) & Celilo, East of(225 ft)

    High:60 at Newport(30 ft)
    Low: 38 at CRANE PRAIRIE (5500 ft )

    Largest Diurnal Change: 53 degrees
    Baker City Munic (95/42 ) (3373 ft )

    Heaviest Rainfall:
    0.98″ at HOYT CREEK(5445ft)
    0.60″ at JUMP OFF JOE(3500ft)

  3. Tyler Mode says:

    Sunrise this morning…

  4. High Desert Mat says:

    Severe thunderstorm warnings for the east side. Just got done with one that lasted about an hour. Pretty cool.

  5. Garron near Washington Square says:

    For my money, the latest summer time high, here locally, would be the barn burner on September 2, 1988 when we hit 104! Epic.


    • Garron near Washington Square says:

      Did anyone get to the century mark yesterday locally? Anyone, anyone, Bueller?

  6. WEATHERDAN says:

    A nice little cooldown today but alas like our one day heat wave this too will be brief. On Thursday PDX will bottom out at 77 and SLE at 81. Then on Independence day the temperatures will begin their inexorable climb and reach the 85-90 range again by Sunday or Monday. No surprise really since all of those who predict our Summer weather called for warmer and drier conditions this Summer. 74 with a lot of altocumulus in the South, West, and East Quadrants at Noon here in Salem. Peace

  7. MasterNate says:

    The first half of July is looking rather toasty on the model runs. Yuck! Morning clouds, afternoon sun and 75-80 please.

  8. Paul D says:

    I sure hope that was the hottest day of the summer, and I hope it was the last day that is 90+, but I know that ain’t gonna happen….

    • David B. says:

      You might just need to move to somewhere with more marine influence. Yesterday’s high at my place was a dozen degrees cooler than Portland (and 87 is still plenty toasty, at least for me).

  9. PaulO says:

    Good thing the heat is gone. With a low so far of 64 at PDX (65 at my house, Montavilla) we would have been much hotter today. Sure made the tomatoes grow!

  10. Karl Bonner says:

    Mark, you should have posted the “Latest Warmest Day of the Year” for PDX’s 70+ year history. I’m going to guess September 14, 1957?

  11. Dringus says:

    Surge, cold air surge! Don’t care what the hot weather kids like, today was just too hot for me.

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